HARVARD UNIVERSITY LIBRARY OF THE GRAY HERBARIUM ARNOLD ARBORETUM HARVARD UNIVERSITY A Cumulative Index to ARNOLDIA VOLUMES 1-29 (1941-1969) PUBLISHED BY THE ARNOLD ARBORETUM JAMAICA PLAIN, MASSACHUSETTS TO DR. DONALD WYMAN Digitized by the Internet Archive in 2017 with funding from BHL-SIL-FEDLINK https://archive.org/details/arnoldiaarno_26 An Index to Arnoldia, Volumes 1-29, (1941-1969) Dr. Donald Wyman will retire at the end of August, 1970, ending his role as Horticulturist at the Arnold Arboretum which began on January 1, 1936. For this service, a total of 34 years and 8 months, the President and Fellows of Harvard College, the Trustees of the Arnold Arboretum, have voted to honor Dr. Wyman with the title of Horticulturist, Emeritus. We, the staff, wish also to honor him and dedicate to him this Cumulative Index to Arnoldia which we have prepared co-operatively. When Dr. Wyman joined the Arboretum staff he accepted the editorship of the Arnold Arboretum Bulletin of Popular Information, the earlier issues of which had been edited primarily and successively by Charles Sargent, Ernest Wilson, and Edgar Anderson. Between 1936 and 1940 Dr. Wyman wrote 39 articles for the Bulletin. In 1941 the title of this publication was changed to Arnoldia at the sug- gestion of the director at that time, Dr. E. D. Merrill, who observed that the one- word title would be easier to cite. Dr. Wyman served as editor and principal contributor to Arnoldia throughout the period covered by this cumulative index, with the exception of a two-year respite in 1967 and 1968. The articles he wrote were based largely on his own observations of the plants grown at the Arnold Arboretum in Jamaica Plain and the Case Estates in Weston. Many articles were timely suggestions to the readers on what was in flower, what was to be seen on the grounds, or how to handle the injury plants suffered in winter storms or hur- ricanes. Other articles dealt with the classification of cultivated woody plants, the sources of unusual plants, or the methods of propagating and caring for these materials. Perhaps the general theme of all his writing was an evaluation of the plant from a horticulturist’s point of view. The words “recommended,” “not rec- ommended,” or “of merit” are frequent in his papers. His articles were often revised after an interval of a few years to add information or to make comparisons with newer introductions recently tested in Massachusetts. Finally, many of these observations were incorporated in his several books — Trees for American Gardens, Shrubs and Vines for American Gardens, and The Saturday Morning Gardener, to mention only the best-known volumes. We expect that Dr. Wyman will continue to write and, we hope, to contribute material to Arnoldia. With his retirement, however, the editorship of Arnoldia passes to other hands. For our own use, as well as that of the many people who receive and use Arnoldia, we offer this Cumulative Index to the 29 volumes issued during his tenure as Horticulturist at the Arnold Arboretum. May 29, 1970 j: / i' h I r CHRONOLOGICAL LIST ARNOLDIA ARTICLES, 1941-1969 Volume 1, 1941 A Simple Change in Name, E. D. Merrill *The White Flowering Rhodora *1941 Sources for Rare Woody Plants *1941 Sources for Rare Woody Plants, Supplementary List The One-Hundredth Anniversary of the Birth of Charles Sprague Sargent (anonymous) *Rhododendron Injury *Winter Injury and Serious Pests To Be Fought Now Hibiscus syriacus, George Graves Nut Growing in the Northeastern States, L. H. MacDaniels *Elms Grown in America Volume 2, 1942 Flowers of the Chinese New Year, Franklin P. Metcalf *Nursery Sources for Nut Trees Asa Gray and His Quest for Shor- tia galacifolia, Charles F. Jen- kins *The Highbush Blueberry *The One Hundred “Best” Lilacs The Medicinal Plant Garden of the Massachusetts College of Pharmacy, Heber W. Youngken *Euonymus An Amateur’s Observations on Har- diness from Growing Rhodo- dendrons in the Pacific North- west, Herbert G. Ihrig * Foliage Colors of Woody Plants, April to September Volume 3, 1943 *Planting Vegetables *The Naming of Horticultural Vari- eties * Winter Foliage Color of Narrow- leaved Evergreens *Broad Leaved Evergreens in Good Condition with Green Foliage Throughout the Winter (Oct. 1942-April 1943) *Winter Injury in the Arnold Arbo- retum, 1942-43 Ghent Hybrid Azaleas are Hardy in New England, Bessie Collier Ellery *Crab Apples for Ornamental Fruit * Woody Plants with Yellow or White Fruits Growing in the Arnold Arboretum *Simple Key to the Pines *Simple Foliage Key to the Hem- locks and Spruces *A Simple Foliage Key to the Firs Volume 4, 1944 Food Plants in the Arnold Arbore- tum, Ernest J. Palmer *Short Guide to Care of the Garden During War Time *Rhododendron Winter Injury * Spring Displays in the Arnold Ar- boretum, 1944 *How to Spend an Hour in the Ar- nold Arboretum Emergency Food Manuals, E. D. Merrill *Autumn Color *Available Rapid Growing Vines for the United States Expeditions to the Alaska Military Highway 1943-1944, Hugh M. Raup Volume 5, 1945 *An Early Spring Build Bird Populations with Food Plants, C. Russell Mason Titles marked with an asterisk were written by Dr. Donald Wyman 1 ARNOLDIA ^Spring Rushes On *The Park Arboretum— How to Es- tablish One as a Living War Memorial * Report on the Arnold Arboretum Hedge Demonstration Plot *Viburnums for the Northern Uni- ted States The Glenmore Arboretum at Buf- falo Creek, Colorado, Robert E. Moore British Gardens in War Time as Seen by an American Soldier, C. E. Kobuski Volume 6, 1946 ^Spring in 1946 Tree Peony, John C. Wister *The Garden Club of America Tours the Arnold Arboretum May 15, 1946 On the History of the Introduction of Woody Plants into North America, Alfred Rehder *William H. Judd, Propagator Bamboos for Northern Gardens, Robert A. Young Contemplated Landscape Changes at the Arnold Arboretum, Bea- trix Farrand Hemlock— The Queen of Conifers, Charles F. Jenkins Volume 7, 1947 *The Past Year at the Arnold Arbo- retum Plant Breeding at the Arnold Arbo- retum, Karl Sax The Bussey Institution, Karl Sax *Watch the Elms * Spring in the Arboretum Fifty Years of Gardening in North- ern Manitoba, F. L. Skinner *American Horticulture Needs to Adopt Uniform Color Standards *Seed Collection Dates of Woody Plants *The Drought *Fruit This Fall *Woody Plants with Interesting Bark in Winter *Spent Hops— An Effective Mulch- ing Material Volume 8, 1948 Metasequoia, Another “Living Fos- sil,” E. D. Merrill *Spring-1948 * Labels in the Arnold Arboretum ^Destroy Dead Elm Wood Immedi- ately *A Trip Through the Arboretum During Lilac Time Blueberry Cages, George O. Clark *Syringa prestoniae *Pruning Rhododendrons *New or Rare Ornamental Plants Recently Distributed to Com- mercial Nurserymen by the Arnold Arboretum Volume 9, 1949 *Sources for a Few New Plants The Azalea Border, Beatrix Farrand *Spring 1949 *Lilacs *The Wisterias * Flower Colors of Hardy Hybrid Rhododendrons Peters Hill, Beatrix Farrand Growing Rhododendrons from Seed, Richard H. Filmore Looking Towards Beach Plum Cul- tivation, George Graves Volume 10, 1950 Forest-tree Breeding Work of the Cabot Foundation, Scott S. Pauley *The Forsythias *The Better Oriental Cherries *The Best of the Crab Apples *A Spring Walk Through the Arnold Arboretum 2 CHRONOLOGICAL LIST OF ARTICLES The Control of Plant Development with Maleic Hydrazide, Richard H. Filmore *Order of Bloom Rootstocks for Lilacs, Karl Sax *Killing Woody Plants with Chemi- cals Dwarf Trees, Karl Sax * Fruiting Habits of Certain Orna- mental Plants Volume 11, 1951 * Forty-Five of the Best Shrubs for Massachusetts Gardens *The New Ground Cover Display Plots at the Arnold Arboretum *Metasequoia Brought Up-To-Date *The Larz Anderson Collection of Japanese Dwarf Trees *Some Shrubs for at Least Two Sea- sons of Beauty The Effect of Light on Seed Ger- mination, Lewis Lipp ^Smaller Street Trees Needed *Air Layering with Polythene Film *Simple Key to the Pines *Five Interesting Trees *Woody Plants Used in Colonial Williamsburg *Elms Grown in America Volume 12, 1952 * Forty-Five of the Best Trees for Massachusetts Gardens Nut Growing in the Northeastern States, L. H. MacDaniels *The Flower Colors of One Hun- dred Hardy Azaleas * Spring Comes to the Arnold Arbo- retum A Note on Ligustrum ibolium, John L. Creech *Some Winter-Killing of Certain Shrubs, As a Result of the Winter of 1951-52 *Autumn Color *The Hunnewell Arboretum 1852- 1952 Volume 13, 1953 *Some of the Best Vines and Ground Covers for Massachusetts Gar- dens *Pruning Ornamental Shrubs and Trees * Layering Plants in Holland *Two Months of Azalea Bloom *For the Record *Seeds of Woody Plants New Methods of Plant Propaga- tion, Lewis Lipp The Arnold Arboretum Spray Schedule, Robert G. Williams and Alfred J. Fordham Volume 14, 1954 * Japanese Dwarfed Trees *Flowering Displays in the Arnold Arboretum *Some Shrubs and Trees with Col- ored Foliage Growing in the Arnold Arboretum * Fifty of the Better Ground Covers Propagating Some Rarer Plants from Seed, Robert G. Cogge- shall *Some Old Fashioned Roses at the Arnold Arboretum An Education Program at the Ar- nold Arboretum, Richard A. Howard *Hurricane “Carol” in the Arnold Arboretum ^Rehabilitation of Trees Injured by Hurricanes of 1954 Polyethylene Plastic— Its Applica- tion to the Propagation of Hardwood Cuttings, Roger G. Coggeshall *Wilfred Wheeler— The Holly Man Volume 15, 1955 * Forcing Hardy Wood Plants in the Greenhouse for Early Bloom Plant Breeding at the Arnold Ar- boretum, Karl Sax *Spring Comes to the Arboretum 3 ARNOLDIA *The Arboretum Lilacs in their Or- der of Bloom A Revised Glossary of the More Common Botanical and Hor- ticultural Terms, Clarence E. Kobuski *Potentilla fruticosa, A Common but Little Known Plant *Cotoneasters Christmas Plants in the Boston Area, Richard A. Howard and Carroll E. Wood, Jr. Volume 16, 1956 *An Early Spring? Paste the Poison Ivy, Kari Sax ^Eighty Trees for the Small Place * Arboretum Spring Planting Notes *Crab Apples for Ornamental Fruits *New and Rare Ornamental Woody Plants Recently Distributed by the Arnold Arboretum *Acer platanoides ‘Crimson King’ vs ‘Fassen’s Black’ *The Ground Cover Demonstration Plots (Brought up to Date) Christmas Decorations from Woody Plant Materials, Florence and Donald Wyman Volume 17, 1957 Some Cultivated Relatives of the Camellia, Carroll E. Wood, Jr. * Winter Injury— 1957 *The Hedge Demonstration Plot Twenty Years after Planting *Something New Has Been Added— Cocoa-shell Mulch *Winter Injury— 1957 (Continued) *A New Boxwood Asiatic Maples, Their Propagation from Softwood Cuttings, Roger Coggeshall *The New Horticultural Color Chart * Broad-leaved Evergreens in the Ar- nold Arboretum Volume 18, 1958 The Juvenile Characters of Trees and Shrubs, Karl Sax *Two New Mahoberberis Hybrids *A Spring Walk Through the Ar- nold Arboretum The Meadow, R. A. Howard The Horticultural Herbarium, Clar- ence E. Kobuski Horticulture on Postage Stamps, Claude Weber *The Case Estates of the Arnold Ar- boretum *The Shrub Altheas *Christmas Show of Holiday Decor- ations *Woody Plants with Interesting Bark in Winter *The New International Code of Nomenclature for Cultivated Plants Volume 19, 1959 The Arnold Arboretum Spray Schedule, Robert G. Williams *These Are the Forsythias *Crab Apples of Merit The Lilacs of New England, Bur- dette L. Wagenknecht A Booklet on Lilacs from Russia, Richard A. Howard Propagation and Care of Lilacs, Alfred J. Fordham Plant Collecting in the Southeast- ern United States, C. E. Wood, Jr. ^Viburnums Christmas Plants Around the World, Burdette L. Wagenknecht Volume 20, 1960 ^ Rooting Ghent Azaleas Under Plas- i tic, Roger Coggeshall *Plants of Possible Merit? *Magnolias Hardy in the Arnold Ar- boretum 4 CHRONOLOGICAL LIST OF ARTICLES *Shrub Honeysuckles with Pink to Red Flowers Propagation of Woody Plants by Seed, A. J. Fordham *Ilex crenata and Its Varieties *Hurricane “Donna” Forsythia ‘Karl Sax’, Joab L. Thomas *Ornamental Fruits, 1960 The Hillcrest Gardens, Weston, Massachusetts, Richard A. Howard *How to Establish an Arboretum or Botanical Garden Volume 21, 1961 Concerning the Registration of Cultivar Names, Richard A. Howard Registration Lists of Cultivar Names in Cornus L., Richard A. Howard The Tree Legumes in the Arnold Arboretum, Burdette L. Wagen- knecht Registration Lists of Cultivar Names in Gleditsia L., Burdette L. Wagenknecht *The Forsythia Story, *Registration Lists of Cultivar Names of Forsyth ias * Winter Injury Not Severe Registration Lists of Cultivar Names in the Genus Pieris D. Don, Burdette L. Wagenknecht *The Best Ornamental Spireas Liquidambar, Joab L. Thomas Propagation of Liquidambar sty- raciflua, Alfred J. Fordham Hurricane “Donna” and Its After Effects to a Chatham, Massa- chusetts, Garden, Harold W. Copeland The Walter Street “Berrying” Ground, Mary Lehmer Volume 22, 1962 *The Majestic Beeches * Barberries *The Birches *Hawthorns The Charles Stratton Dana Green- houses of the Arnold Arbore- tum, Richard A. Howard Herbaceous Aliens in the Arbore- tum, Peter S. Green *The Honeysuckles *The Lindens, *The Oaks Volume 23, 1963 *Trial Plot for Street Trees *Results of Trials in the Ground Cover Demonstration Plots Cultivars in the Genus Chaenome- les, Claude Weber Supplementary Registration List of Cultivar Names in Syringa L.— Registered 1963, John C. Wister *International Plant Registration Leucothoe fontanesiana, Peter S. Green Tsuga canadensis and Its Multitude of Variants, Alfred J. Fordhanr Heath and Heather on Cape Cod, Harold W. Copeland *Pruning Ornamental Shrubs and Trees *New Plants Registered * Fruiting of Yews *Tree Trunks Volume 24, 1964 *Registration of Cultivar Names of Fagus L. Labels in the Arnold Arboretum, Heman A. Howard *Black Polyethylene as a Mulch Climbing Hydrangeas and Their Relatives, Lorin L Nevling, Jr. Registration of Cultivar Names in 5 ARNOLDIA Ulmus, Peter S. Green The Chinese Bush Cherry— Prunus tomentosa, R. A. Howard and A. I. Baranov Propagation of Prunus tomentosa, Alfred Fordham * Lilies in Their Order of Bloom *The New Hedge Demonstration Plot * Bonsai at the Arnold Arboretum Volume 25, 1965 Germination of Woody Legume Seeds with Impermeable Seed Coats, Alfred J. Fordham Alaskan Ornamentals and Fruits, Richard H. Washburn The Olive Family in Cultivation, P. S. Green *The Mock-oranges The Herbarium Introduced, Ste- phanne B. Sutton A Home Arboretum, Nelson Coon *Plants for Screening Junkyards, Gravel Pits and Dumps A Check-list of Cultivar Names in Weigela, Richard A. Howard The Name Jasmine, P. S. Green Volume 26, 1966 *Snow Damage *More Tree Trunks *More Plant Registrations *The Hardiest Azaleas Ornamental Madworts (Alyssum) and the Correct Name of the Goldentuft Alyssum, T. R. Dudley Expeditions for New Horticultural Plants, John L. Creech Seasonal Hardening in Trees and Shrubs, Harrison L. Flint Seasonal Hardening in Trees and Shrubs Useful Even Though Not Winter-hardy, Harrison L. Flint *A Few Poisonous Plants Volume 27, 1967 Seasonal Rhythm of Development of Woody Plants and Its Impor- tance in Introduction, P. Lapin Plants with Colorful Twigs in Early Spring, Harrison L. Flint How to Have a Good Clipped Hedge, Harrison L. Flint Dwarf Conifers from Witches’- Brooms, Alfred J. Fordham Identification of Unknown Plants, ; Gordon P. DeWolf, Jr. Plant Hardiness Zone Maps, Don- ald Wyman and Harrison L. Flint i Our Disappearing Opportunities, Edward Weeks *More Plant Registrations September Bloom, Harrison L. j Flint Seed Dispersal by Birds and Ani- j mals in the Arnold Arboretum,! Alfred J. Fordham i Rooting of Conifer Cuttings, Rolf ; Jesinger and Richard J. Hopp j i Volume 28, 1968 Country Cousins, Harrison L. Flint *The New Dwarf Conifer Collection Albizia julibrissin and Its Cultivar ‘Ernest Wilson’, Gordon P. I DeWolf, Jr. j Propagation of Albizia julibrissin, ^ Alfred J. Fordham | Some Horticultural Activities of | Justin Smith Morrill, Harrison ! L. Flint I Some Ways Plants Climb, Lorin 1. | Nevling, Jr. | Notes on Making an Herbarium, j Gordon P. DeWolf, Jr. I *Metasequoia after Twenty Years | in Cultivation, ^ *Potentilla fruticosa Varieties in the | 6 CHRONOLOGICAL LIST OF ARTICLES Arnold Arboretum Volume 29, 1969 *Plant Registration *Some Comparatively New Plants Worthy of Trial Elliottia racemosa and Its Propaga- tion, Alfred J. Fordham *Casoron— A New Weed Killer to Protect Woody Plants *Tree Peonies * Seventy-Five Years of Growing Rhododendrons in the Arnold Arboretum The Introduction of Our Hardy Stewartias, Gordon P. DeWolf, J"- *Espaliered Plants *The Mountain-Ashes The European Mistletoe (Viscum album), Heinrich Rohrbach A Check List of Cultivar Names Used in the Genus Lantana, Ri- chard A. Howard *Christmas Decorations from Woody Plant Materials, Flo- rence and Donald Wyman *Hedges for Special Purposes Dr. Donald Wyman, Gordon P. De- Wolf, Jr. 7 "‘fii • "-r ' , , JL rMi^'% '■■ >^‘■/'^•V!^i:^r,f^^^3•^^ '^.f^ AcrutV. >>: , 1 (lf^'.i ''i 'V'\':?^jW^AL, - ■ :.:> ■:V?« ■&■:•;: ■4 - -.■ ,i:';tr^.'^^ ' ■*" '• '' ' "!l' )' ■■■ 'JlifKJv ’ ■■'''»: -X' 31 " :rVv ' \"':-;;;h b.vAf-x H-.'" ' '-liilici* ■ .:’^t ^;vi' T ; ,■ in ' . | '■ ■ '<■/ ' ‘r-'' i ' ■■- ■ - .',■ \.-f ■' ■ i- ■ ■ ^ •' - :^!ii ^.rLiL:^ . lWl..'v.J,'' ' y^v.i • '.T v':^. ‘ ::.7:r7'''^l .-V., ■ .. :f;"„ iV''^ ' , a: ':U' ;A:;v INDEX TO VOLUMES 1-29 Abeliophyllum, 14 — distichum, 2: 36; 5: 2; 7: 25; 8: 10; 12: 46; 21: 44; 25: Plate III, 15 Abies, 3: 66 -alba, 3: Fig. 10 (c), 67, 71; 19: 70 pyramidalis, 3: 74 — amabilis, 3: 70 — balsamea, 3: 67, 70; 15: 63, 71; 19: Plate XIII, 60, 75 ‘Andover’, 14 — - ‘Nana’, 28: 10 , witches’-broom, propagation, 2J: 48 — cephalonica, 3: Fig. 11 (c), 68, 69 , witches’-broom, propagation, 48 — chensiensis, 3: 69 -Cilicia, 3: 71;^: 72 — in Hunnewell Arboretum, 12: Plate XVI, 76 -concolor, 3: 71; 1^: Plate VII, 39, 49; 17: 24, 27; 19: 63, Plate XIII, 75;^: 9 — conica, W: 9 violacea, 71 -firma, 3: 69; 19: 73 ; tip of needle, J_: Fig. 11 (b), 68 -fraseri, 3: 67, 70; 17: 27; 1^. 66 — prostrata, h 68, 70 — grandis, _3: 70 ^‘Compacta’, 12 — holophylla, h 69 , tip of needle, 3: Fig. 11 (a), 68 -homolepis, 3: 68, Fig. 12 (a), 69; 12: 3; 14: 49; 19: Plate XIII, 75 -koreana, 3: Fig. 10 (a), 67; 3; 14: 49;^: 10 — lasiocarpa, 3: 68, 71; 19: 62 arizonica, _3: 68, 71 ‘Compacta’, 28: 10 — magnifica, 3:71 — mariesii, 67 -nobilis, 3: 68, 71; 19: 63 Abies nobilis glauca, 1^: 64 — nordmanniana, 3: 67, Fig. 10 (c), 69, Fig. 12 (b), 71; 19: 70 — pinsapo, 3: 67; 19: 72 glauca, 3: 67; )A: 14 -procera, 3: 68,71;^: Plate XVII, 130 glauca, 3: 68, 71 ‘Glauca Prostrata’, 12 - religiosa, 3^ 69 -sachalinensis, 3: 70 — sibirica, 3: 70 -spectabilis, 3: 70 -veitchii, 3: 70; 19: Plate XIII, 75 — venusta, h 69 Acacia, 19: 70, 72 — , International Registration Au- thority, 87 Acanthopanax henryi, 9 nana, W: 9 — sieboldianus, IT^’. 28 Acanthus ilicifolius, 19^: 73 Acer barbinerve, 17^: 52 — buergerianum, H: 2; 17: 49, 52, 55;^: Plate XI, 103 — campestre, 17^: 20, 26 compactum, ^ 46;^: 2 - -, hedge, Plate V, 26 -capillipes, 17: 50, 52 - carpinifolium, 52 - circinatum, 1^: 3; M: 49 - cissifolium, 17^: 49, 50, 53 -davidii, 123, Plate XIII, 126 -ginnala, 14: 49; 17: 20, 27, 55 ‘Durand Dwarf’, 20: 10 _ hedge, 2J_: Plate V, 26 -glabrum,2' 32 -griseum, 7: Plate XI, opposite 67; 9: 2; 12r. 3; 14: 49; 17: Plate XII, 54, 56; IS: Plate XV, 61;^: Plate XVI, 123, 129 -grosser! hersii, IT^i 56 -japonicum aconitifolium, 14: 14 — mandshuricum, 17_: 56 -miyabei, 56 9 ARNOLDIA Acer negundo elegans, 1^: 14 nikoense, 1&. 36 palmatum, 1^. 2, 14 atropurpureum, 8: 46; 12: 4; 14: 14, 49 — ‘Burgundy Lace’, 1^: 14 — dissectum, 14: 14 — hessei, 14: 14 multifidum, 14: 2 — ornatum, 1^. 14 sanguineum, 14: 14 — pensylvanicum, 123 — pests, 19: 4, 7 — platanoides, 11: 71; 49; 17: 20, 28 — columnare,^: 2; 12^ 4; 14: 49 — ‘Crimson King’, 12: 4; 14, 49; 15: 18, 52; 1^: 52 — ‘Emerald Queen’, 23: 116 erectum, 9: 2 --‘Fassen’s Black’, 18, 52 -- hedge, Plate V, 26 — rubrum, 14: 14 — schwedleri, 1^: 14 — rubrum columnare, 6: 10; 8: 46, 47; 9: 2; 1^: 4; U: 49 schlesingeri, 7: 53;^: 34 -saccharinum, 10; )A: 49 monumentale, &. 10; 8^: 47;^: 2 -tartaricum, 17^: 49, 53 -tegmentosum, 53 -triflorum, 16: 36;!^: 5 3, 55; 23: 123, Plate XI, 124 — truncatum, 16: 36 - tschonoskii, 17: 53 Achillea millefolium, 22: 52 Aconitum spp., 72 Acorns, 1^: 72; 16: 68, 72 Actea pachypoda, 66, Plate XX, 67 Actinotinus sinensis, 2: 8 Adair, Miss, 36 Adonis amurensis, 5: 1 Aegopodium podograria, 1^: 11; 14: 22 Aerial photograph of Hillcrest Gar- dens, Plate XIII, 59 Aesculus pests, I^: 6, 7 Agaricus campestris, 4: 2 Agave, 15 : 72, Plate XIV, 77, 78 Aglaia odorata, 2_: 8 Agropyron repens, _7 : 69 Agrostis alba, 22: 50 Ailanthus altissima, ^ : 67 erythrocarpa, 7:58 , fruiting, 1^: 82 Air layering experiments, materials used, 11: Plate XIII, 53 on Malus ‘Dorothea’, 11: Plate XIV, 60 , plants that rooted, li: 54-57 , plants that failed to root, 11 : 57-61 , results, 11: 61, 62 with Polythene Film, 11: 49- 62 Ajuga reptans, 14: 22 Akebia, 1±. 22 -quinata, 7 Alaska Military Highway, Expedi- tions to the, 1943-1944, 4: 65-72 Alaskan Ornamentals and Fruits, 9-12 Alathon, H: 50 Albizia, 24, 25 - julibrissin, 2^. Plate IX, 31, Plate XI, 35, 29-40 and its cultivar ‘Ernest Wilson’, Plate X, 33, 29-35 , Propagation of, Plate XII, 37, Plate XIII, 39, 36-40 Albizzia julibrissin rosea, 27; 11;8: 47; 9: 2; 12: 4; 16: 36; 1^: 15; n: Plate I, 23, 25;^: 2 , close-up of flowers and showing tree itself, 8: Plate XIV, 49 , germination of seed, ^: Plate I, 4 Alder, Black, 15: 78 Allamanda cathartica, 19:73 Allegany pachysandra, 6 Alnus glutinosa, 1^: 20 Alsike Clover, 22: 50 10 INDEX TO VOLUMES 1-29 Althaea, X: 41-44 _ , culture of, 1 : 42 — , propagation of, J.: 43 — rosea, 54 — , shrub, 18 : 45-51 _ , winter injury of, 1: 42 Alyssum alpestre, 26: 38 _ atlanticum, 40 — bertolonii, 40 — borzaeanum, 40 — cuneifolium, 40 — diffusum, 26: 40 — gemonense,^: 21 — lapeyrousianum, 40 — markgrafii, 40 — moellendorfianum, 40 — montanum, Plate XIII, 39, 42 _ murale, Plate XIII, 39, 42 — ovirense, 42 — purpureum, 42 — repens, 42 — scardium, Plate XIV, 41, 44 — serpyllifolium, 44 — spinosum, Plate XV, 43, 44 — stribrnyi, 44 — tortuosum, 44 — , trial plot at Case Estates of the Arnold Arboretum, Plate XV, 43 — wulfenianum, 44 Amateur’s Observations on Hardi- ness from Growing Rhododendrons in the Pacific Northwest, 2: 53-56 Amelanchier asiatica, 16: 20 canadensis, 14 : 49 laevis, 12 ^: 6; 14: 49 ^ pests, 19 : 5, 7 spp., 4: 6 Amelanchiers, 14 : 9 American Association of Botanical Gardens and Arboretums, _3 : 44 , Committee on Horti- cultural Varieties, 2: 33 American Association for the Ad- vancement of Science, _7: 33 American Elm, 11: 41 American Holly, 14 : 68 , flowering habits of, M: 68 American Horticultural Council, 17: 57, 60 American Horticulture Needs to Adopt Uniform Color Standards, 7: 41-52 American Smoke Tree, 1, 2 Ammonium sulfamate, 5 Among the Best Common Vines, 13: 18 Ground Covers, 17: 19 Amoracia rusticana,^: 55 Amorphophallus campanulatus, 4: Plate V, 35 Ampelopsis brevipedunculata, 7 — pests, 17: 6, 7 Anacardium occidentale, 4: Plate V, 35 Anaphalis margaritacea, 17: 76 Anderson, Edgar, 12 ^: 42 Anderson, Larz, collection, 14 : 2 Andromeda axillaris, 94, 95 — catesbaei, 94 — , Downy, 17: 62 — glaucophylla, 17: 62 — , Japanese, 17: 74 — , Mountain, 17: 74 serratifolia, 94 Anemone nemorosa, _5 : 84 Anthoxanthum odoratum, 50 Anthracnose, 19: 3, 8 Anthurium andraeanum, 1^: 83 — cultorum, 82 Antigonon, 19: 68 — leptopus, 19: 68 Antitoxin Laboratory, State of Massachusetts, 7: 2 Apples, dwarfing understock for, 10: 73-76 Apricot, 2: 4 Aquilegia vulgaris, 5 : 84 Aralia elata variegata, 16: 20 Araliaceae of China, 2:51 Aramite, H: 83 Araucaria araucana, 5:83 — bidwillii, 78 11 ARNOLDIA Araucaria sp., 19: 76 Arboretum, Arnold, see Arnold Ar- boretum — , Glenmore, 65-76 -, home, 25: 41-44 _, Hunnewell, 1852-1952, 12: 61- 84 -, Morton, ^ 50; 5: Plates VIII-IX, 43 -or botanical garden, definition, 69-71 , how to establish, 69- 83 -,Park, 5: 25-48 -Spring Planting Notes, 1_6: 17-27 Arboreta and Botanical Gardens of North America, 19: 58 Arborvitae, 1^: Plate XI, 65, 70 — , American, 17: 25 -, -Globe, 17: 25 — , Giant, 17: 25 -‘Little Gem’, 17: 25 -, Spiral, 17: 25 -, Wagner, U: 25 -, Ware’s, 17: 25 — , Woodward, 17: 25 Arbutus unedo, 17: 69; Plate IV, 7 Arctium jappa, 1^: 20 Arctostaphylos manzanita, 9: 43; 1^: 83 — uva-ursi,^: 43; 13: 11; M: 22; 17: 62 - -, wreath, lj6: 64, Plate XXI, 71, 72 Ardisia crenulata, 19: 66 Arisaema triphyllum, 26: 75 Aristolochia kaempferi, 22: 54 Armillaria mellea,4: 2 Arnold Arboretum, 9: 9-12; 17: Plate IX, 34 —administration building, L 31-32 — , Azalea collection, 7^: 8 — , Barberry collection, 7: 6 — , Chinese collection, 7^: 8 — , Contemplated Landscape Changes at the,_6: 45-48 Arnold Arboretum, Courses, see - Courses — , current plans, 7: 8 — , Deutzia collection, 7: 7 _, drought at the, 7: 57 — , Euonymus collection, 7: 7 — , fall classes, 8: 44; 17: 68; 14: 34-36; 15: 52; 16: 32; 17: 6'0; 18: 39; 19: 58;^: 40; 21: 74;^: 68;M: 88;^: 55;^: 72;^: 124; 29: Supplement following p. 72 — , fall fruits at the, 7:58 — , field class, 1: 36; 17: 44 — , frosts, the mid-May, £: 27 food plants in the, 4: 1-7 —Garden Book, 14: 56 —hardiness maps, 2J_: 53-56 -herbarium, J^: 31, 32 — , history of, 1^: 29-32 — , How to Spend an Hour in the, 4: 25-28 — , labor and staff of, 7_: 1 — , lecture on, 12: 60 — , lecture slides, 17: 14 — , library of, 1^: 3 1 — Lilac collection, 7: 6, 7 — , map of roads between Case Es- tates and, 7: Plate I, opposite p. 4 18: Plate X, 44 ' — , mulches, 7: 6, 69-72; 9: 9 — , new equipment, 7: 3 — , new policies, 7: 4 -Open House, 17^: 36 — , Open House at the Case Estates, 15: 23; 16: 15; 17: 36 — , opening of new vistas, 7: 5 - , past year at the, 7: 1-8 — , Philadelphus collection, 7^: 7 -plant breeding,^: 9-12 — , planting at administration build- ing, 7: 7 —postcards, 40 —publications, 17: 40 — , removal of duplicate shrubs and trees, 7_: 5 — , reorganization, 7_: 4 12 INDEX TO VOLUMES 1-29 Arnold Arboretum, Ribes collection, 7: 6 — roads, resurfacing of, _7 : 7 — , Spiraea collection, 7: 7 — spray schedule, 13 : 13-11 \ 19 : 1-10 , “New Spray Materials,” 13 : 69-84 — spraying equipment,^: 11 — , spring classes, 1: 36;^: 12, 20; 9: 4, 12; 10: 8, 24; U: 24; 12: 44; 13: 36; 14: 12; 15: 12; 16: 4, 8; 17: 16; 19: 22;^: 28;^: 38; 8, 24;^: 16,^: 8;^: 24 — , — Comes to the, 12^: 45-48 — , — displays in the, ^ 21-24 — , — Walk through the, 1^: 29-32; 18: 13-16 — Visiting Committee,^: 3 — water system, 7: 8 — weed plants, removal of, 7: 7 — , Weigela collection, 7: 7 Arnold Cherry, No. 8240, 1 _: Plate II, opposite p. 10 Arnoldia, 1, 2 Arnoldia Reviews, see Book Review Aronia arbutifolia, dwarfing under- . stock, 1^: 75 Arrangement of herbaria, 90-92 Arrangements, Christmas, 16 : Plates XVI-XXI, 61-72; 130, Plate XXXIV, 131 Arrowwood, _5 : Plate IV, 17; 17: 22 Arsenate of lead, 13: 83 Artemisia tridentata, IV: 63 Arthur Hoyt Scott Horticultural Foundation, 23 : 11 Artichoke, 1±. 72, Plate XIII, 73 — , Jerusalem, ]3: Plate III, 19, 20 Arundinaria, 30, 32 — graminea, 6: Plate II, 32 — simonii, 6: 38 Asa Gray and His Quest for Shortia galacifolia, 2: 13-28 Ascelpias physocarpa, 19: 74 — syriaca, 4: 4; 14: 74; 1^: 20 Ash, Green, ‘Marshall’s seedless’, 16: 23 — , Mountain, 11 Asiatic Maples, propagation from softwood cuttings, 17: 45-56 Asparagus asparagoides, 1_5 : 7 1 -, Fern, 17 : 70 — officinalis, 54 — plumosus, 1^: 70 — sprengeri, 17: 70; IV: 72 Aster, New England, 1^: 20 — novae-angliae, 18: 20 — vimineus, 1^: 20 Atkins Garden and Research Labo- ratory in Cuba, 2: 4, 14, 16 Atropa belladonna, 55 Auction, WGBH-TV (Channel 2), m 28 Aurinia petraea, Plate XIV, 41 Autikon Botanikon, 5 1 ; _3 : 8 Automatic Mist Sprayer, 17: 66 Autumn-blooming shrubs, 17: 59 Autumn Color, 4: 37-44; 12: 53-60; 52 — of autumn-blooming shrubs, 17: 59 — , dull, 4: 40 -, no, 4: 43; 12: 58 -, red, 4: 41; 17: 57 — , reddish to reddish-purple, 4: 42; 12: 58 -, yellow, 4: 42; 17: 58 — , yellowish to bronze, 4: 43; 12: 58 — , woody plants with, 4: 41; 12 : 56-59 — , why leaves are red, 4: 39; 12^: 55 — , why leaves are yellow, 4: 38; 12: 54 Autumn foliage, 67 Available Rapid Growing Vines for the United States, 4: 45-64 Azalea, 2: 6; 4: 22; 1±. 9, 10 — , amoena, 13: 32; 17: 75 — , Arnold, 24 — Bloom, Two Months of, 13: 29-35 13 ARNOLDIA Azalea Border, The,^: 6-7 ‘Fedora\ Plate XVII, 49 — , fiery red Torch, 8: Plate VI, 23 — , Flower Color of One Hundred Hardy, 12: 41-44 — , Gable hybrids, 2^: 29-30 — , Ghent, 8: 24 , hybrid hardy in New England, 3: 37-40 , rooting under plastic, 1-7 — , Hardiest, The, 17-32 — hybrids, 22-32 — , Knapp Hill hybrids, 30-31; U: 30-31 — , Korean, 11 — , Kurume, 17: 75 — ‘Louisa Hunneweir, 12: 72 -, Mollis, 8 : 24 — , — hybrids, 31 — , obtusum arnoldianum hybrids, U: 28 — , — kaempferi hybrids, 28 — , order of bloom, 13^: 29 — path on Bussey Hill, _7 : Plate IV, opposite p. 26 — pests, 1^: 4, 5, 6, 7 -, Pinkshell,6: 9; 8: 21, 22 — , Poukhan, 8: 24 — , Royal, 1 1 — , Rustica Flore Pleno hybrids, 26 : 31-32 — , Snow, 17^: 75 -, Torch, 9, 11;^: 21, 22; 9: Plate II, 5 — , Vuyk hybrids, 32 — , Yerkes-Pryor hybrids, 32 Baccharis halimifolia, fruiting, 10 : 82 Bacterial blight, 1^: 3, 9 Bailey, L. H., 3: 50 Baker, Mrs. Hannah, 21: 81 Baker, Capt. John, 2^: 81 Baker, Thomas, 21:81 Balch bequest, 7: 4 Balch, John, 7: 4 Balch, Mrs. Katherine T., 7: 4 Ballart, Cherry, 1^: 77 Bamboo, Plate V, 30 — , Narihira, 38 Bamboos for Northern Gardens, ^ 29-42 — , a group of six species of running, 6: Plate II, 31 — , hardiness of, 29 — , the hardy running, 6: 30, 32 Bank planting, seashore in Scot- land, 16: Plate XV, 60 Baranov, A. I., and Howard, R. A., Chinese Bush Cherry, The, Prunus tomentosa, 24: 81-86 Barberries, 9-16 Barberry, Bean’s, 10 -, Black, 17: 62;^: 12 — , Box, Yh. 20 — , Chenault, Vh. 62; 10 — , Curlleaf, 14 — , Dainty, 2^ 12 — , Darwin, 12 — , Dwarf Magellan, 10 —, Japanese, Y: 20;^: 14 , red-leaved, 17: 20 , Thornless, 17: 20 White-edged, Y: 20 — , Jasperbells, 12 -, Korean, 17: 20; n-. 12 — , Lolog, 12 — , Magellan, 10 — , — , dwarf, 17: 62 -Mentor, H: 20; U: 14 — , Paleleaf, 22: 10 — , Rosemary, 14 — , Sargent, YU 64 — , Sheridan Red, YU. 20 — , Threespine, 17: 64 — , Warty, 17^: 64; 16 -Wildfire, 17: 20;^: 12 — , Wintergreen, Y: 62;^: 12 Bark, Cherry-like, on trunk, 2^ 67; — , exfoliating, 2; 67, 68 — , grav on trunk and branches, 7 : 65; 1^:62 — ^ gray twigs, shrubs with, 2- 64 14 INDEX TO VOLUMES 1-29 Bark, green twigs, plants with, 2: 64 — , interesting, miscellaneous list of, 7: 68 — , light brown color, conspicuous, shrubs with,_7' 65 — of trunk or older branches ex- foliating, 1^: 63 — , red, or red twigs, plants with, 7^: 62, 64 — , white on trunk and branches, 7_: 65; 18: 62 — , woody plants with interesting, 7: 61-68; 18: 57-64 — , yellow twigs, shrubs with, 7: 65 Barnes, Miss Mary 9: 19 Bartram, John, 17: 6 Bartram, William, 17: 6 Batchelor, J. Milton,^: 56, 63 Bayberry, 1_5: 72 Beach Plum award, 52, 63 , cultivation,^: 53-64 Bean, Screw, 1_5: 75 Bearberry, 1^ 62, 64, 72; 17: 62 Beardslee Nurseries, 38 Beech, American, 17: 21; 2 -, Australian, 17 : 78, Plate XIV, 77 — , Copper, 2 — , Cutleaf European, 4 — , Dawyck, 4 — , European, 19: 21; 2^: 2 — , Oak-leaved, 4 — , Purple, 2 — , Roundleaf, 4 — , Weeping, 4 — , wooly aphid, 19: 4 — , The Majestic, 22: 1-7 Beefwood, 16: 72 Beetle, Elm Leaf, 1_: 39 — , Willow Leaf, 39 Beetles, Mexican Bean, _3 : 6 — , Striped Cucumber, J: 6 Begonia, International Registration Authority, 87 — semperflorens. International Registration Authority, 87 Bell, Christmas, 1^: 76 Bellflower, European, 54 Beilis perennis, 52 Berberis ‘Atropurpurea Nana’, 2^ 10 — beaniana, 10 — buxifolia, 2^ 10 nana, 17: 62; 10 — calliantha, 10 — candidula, 22: 10 — X chenaultii, 17^: 62; 2^. 10, Plate IV, 13 — concinna, 22: 12 — ‘Crimson Pygmy’, 20: 10 — darwinii, 2^. 12 — gagnepainii, 17^: 62;^: 12, Plate IV, 13 — gilgiana, H: 20, 27; 12 — X gladwynensis ‘William Penn’, U: 15 — ‘Globe’, 10 -julianae, U: 3; H: 62, 63;^: 12 — koreana,_9: 2; 11: 3; 17: 20, 27; . 22:. 12, Plate III, 11. — linearifolia, 2^. 12 — ‘Little Beauty’, 10 - ‘Little Gem’, 10 — X lologensis, 12 — X mentorensis, 17: 20, 26; 22: 14 — , recommended, 10 — replicata, 14 — sargentiana, 17: 64; 21: 44 — ‘Sheridan Red’, 17_: 20, 28 — X stenophylla, 14 — thunbergii, 17: 18, 20, 26; 22: 14, Plate IV, 13, Plate V, 15 argenteo-marginata, 14: 14; 17: 20, 27 atropurpurea, 1£: 14; 20; 'n: 14 ‘Erecta’, 22: 14 ‘Golden Ring’, 9 ‘Red Bird’, 14 -- ‘Aurea’,^: 9 ‘Crimson Pygmy’, 22: 16 erecta, 1T_: 20, 27 ; 2^ 16 -- ‘Globe’, 16 minor, 19: 20, 26; 16 15 ARNOLDIA Berberis thunbergii nana, W: 10 ‘Little Beauty’, ]A: 14 — - ‘Thornless’, 16: 20; U: 20, 27; 22: 16 ‘Variegata’, 16 xanthocarpa, 10 — triacanthophora, 47 ; 17_: 64 — verruculosa, 17: 64; 2^ 16 — vulgaris, 17: 28 ‘Sheridan Red’, 1^: 14 Berry, Christmas, 19: 76 “Berrying” Ground, The Walter Street,^: 75-82 Best of the Crab Apples, TO: 25-28; 19: 17-20 Best Ornamental Spireas, The, 21 : 51-58 Best small shade trees, 1^. 49, 55 Best Vines and Ground Covers, 13 : 1-19 Better Oriental Cherries, The, 10 : 17-24 Betts, E. M., _5: 4 Betula albo-sinensis, 7:33 septentrionalis, Plate VIII, 11 — davurica, 20 -lenta, U: 49;^: 20 laciniata, 20 — nigra, 20; Plate XII, 125 — papyrifera, M: 49] 2^: 18, 20 — pendula, 20 — - ‘Fastigiata’, 22, Plate VII, 21 --‘Gracilis’,^: 22 ‘Purpurea’, 22 ‘Scarlet Glory’, 9 — - ‘Tristis’, 2^: 22, Plate VI, 19 ‘Youngii’, 22 — pests, 1^: 3, 7 — platyphylla japonica, 22 szechuanica, 22 — populifolia, 17: 20, 28; 22, 23;^: Plate XIV, 127;^: 1 Beauty Bush, I^: 21 Bidens frondosa, 1^: 22 Bindweed, 22: 55 Birch, Canoe, 20 — , Dahurian, 20 — , European, 20 -, Gray, H: 20;^: 22, 23 — leaf miner, 1^: 3,7 — , River, 20 — , Sweet, 20 Birches, The, 17-23 , recommended, 20 Bird food plants, 5-20 Bird of Paradise Flower, 1^: 82 Birds and Animals, Seed Dispersal by, in the Arnold Arboretum, 27: 73-84 Birthwort, 54 Bishop, Thomas, 80 Bitternut, L 54, 55 Bittersweet, 55 Black Swallow Wort, 1^. 6 Black vine weevil, 19: 5, 9 Black Walnut and horticultural var- ieties, 1_: 50, 52, Plate VI, 53;^: 11, 12 Blackhaw, 17^: 22 Bladdernut, ^ 72 Blandfordia flammea, 1^: 76 Blood albumen, 83 Bloom, Order of, 44-56 Blooming dates, 1^: 4]\lj. 34, 36 — , estimated, 7_: 28 — of plants growing in the Arnold Arboretum, 22, 23 — , this year, 15:16 Blueberry, 2: 29-32 — Cages, 25-28 — culture, reference on, 2:32 — , construction of cages for, 8: 28 — , Highbush, 2: 29-32 — , methods of protecting, 8^: Plate VII, 27 — , requirements of, 8: 26 — , sources of information about, 8: 25 — varieties, 30 Bonsai, 14: 1, 7; ]_5: 83 — , art of training dwarf trees, 11 : 30 16 INDEX TO VOLUMES 1-29 Bonsai at the Arnold Arboretum, 24: 10M04 — Available on Loan, An Exhibition of Photographs of, 28 — House,12: 42, 46, Plate XVII, 45 , new, Plate X, 103 — , references, M: 104 Book Review, Die Baume Europas, Ein Taschenbuch fiir Naturfreunde, by Gerd Krussmann, 2^: 68 — , Botanical Exploration of the Trans-Mississippi West, 1790-1850, by Susan Delano McKelvey, 1^: 28 -, The Hookers of Kew, 1785- 1911, by Mea Allen, 91, 92 — , Plant Life of the Pacific World, by Elmer D. Merrill, 5: 64 — , Plants, Animals and Man in the Outer Leeward Islands, West In- dies, by David R. Harris, 46- 47 — , Silvics of Forest Trees of the United States, by H. A. Fowells, 47 — , Thomas Jefferson’s Garden Book, by E. M. Betts, 5 : 4 — , Wood and the Trees, Biography of Augustine Henry, by Sheila Pirn, 26: 47,48 — , Weeds of Lawn and Garden, by John M. Fogg, Jr.,^: 56 — , World of Flowers, The, ed. Her- bert Reisigle, 46 Booklet on Lilacs from Russia, 19: 31-35 Boston Ivy, 1^: 5, 6 Boston Park Commission, 2= S Department, 7: 7, 8 — Spring Flower Show, 1^: 1 — Weather Bureau, 1: 38 Botanic Garden, Harvard Univer- sity, 7: 14 or Arboretum, How to Estab- lish, 20: 69-83 Botanical Exploration of the Trans-Mississippi West, 1790- 1850, (Book Review), 16: 28 Botanical terms, L5: 25-44 Bottlebrush, 15: 66, Plate XII, 69 Bottle-grafts, 10: Plate III, 5 Bowen, Isaac, 77, 82 Boylston, Dr., 78 Box, common, 17: 64 — , Korean, 12‘. 24, 64 Boxwood, 66; 1&. 62, 64, 70 — leaf miner, 1^: 4, 7 — , new, 11 : 42-44 — psylla, 1^: 4, 7 Boynton, Charles L., 2: 24 Boynton, Frank E., 2: 22, 24 Boys school at Hillcrest Gardens, W: 53-67 Branches of Shrubs Forced in a Greenhouse, 1^: 2 Brassica arvensis, 4: 4 — oleracea, 5: 82 Bridge, Mrs. Anna, 80 Bridge, Edward, 80 British Colour Council, system, 7: 45 — Gardens in War Time as Seen by an American Soldier, 5: 77-88 Broadleaved evergreens, ll^: 61-76 in Good Condition with Green Foliage throughout the Winter, 3: 21-23 Broom, Butcher’s, 1^: 78, Plate XIV, 77 -, Scotch, 15: 68; 21 — , Warminster, 6: 11; 1^: 41 Brooms, 14: 10 Broussonetia papyrifera, 23: 123, Plate XIII, 126 Brush chipper in Arnold Arboretum 14: Plate IX, 47 Brush killer, 1&. 6 Buartnut, 12 Buckthorn, common, ]J: 22 — , Glossy, 17_: 22 Buckwheat, False, 83 Build Bird Population with Food Plants,^: 5-20 “Bulletin of Popular Information,” 1 : 1 17 ARNOLDIA Bunya-bunya, 78 Bureau of Entomology, U.S.D.A., 7: 22 Burdock, 1^. 20 Bussey, Benjamin, 7: 13 — Institution,^: 37;7j 4, 12, 13- 16; 10: 2 -Trust, 7: 13 Butter-and-eggs, 1^: 18 Buttercup, 18;^: 52, 53 — , Creeping, 52 Butternut, 1_: 52;^: 12 — and Horticultural Varieties, 12: 26-28 Buxus microphylla koreana, H: 4; 17: 24, 26, 64 hybrid, 17: 24 ‘Newport Blue’, 44 ‘Tide Hill’, 17: 65 ‘Wintergreen’, 88 — pests, 19: 4, 5, 7 — sempervirens, 15 : 66; 17: 42, 64, 65 albo-marginata, T4: 14 angustifolia, 17: 65 arborescens, 65 ‘Belleville’, 116 ‘Curly locks’, 17^: 65;^: 44 handsworthii, 17: 65 hedge, Plate II, 23 ‘Kingsville’, 17: 65 ‘Northern Find’, 87 -- ‘Northland’, 17: 65 rotundifolia, IT^: 65 suffruticosa, 17^: 42, 65 — - ‘Suffruticosa’, Plate XXXIX 143 — - ‘Tide Hill’, n-. 44 ‘Vardar Valley’, 42, 44, 65, Plate X, 43 Cabbage maggots, 3 : 3 — worms, _3: 6 Cabot Foundation,^: 4, 16 , Forest-Tree Breeding Work of the, 10: 1-8 , publication, 39 Cabot, Godfrey L., 1 Cactus, Crab, 15: 80 Calendar, Gregorian, 81, 82 California Lilac, 83 Callistemon rigidus, 1^: 66 Callistephus, International Registra- tion Authority, 87 Callitris glauca, IV: 76 — propinqua, 19: 76 Calluna vulgaris, 14: 22 Callunas grown at Chatham, Massa- chusetts, cultivars, 2^: 31, 105, 106 Caltha palustris, £: Plate III, 31 Calystegia sepium, 55 Camellia,^: 6; IV: 1-12 — , International Registration Au- thority, 87 — japonica, 2: 6 — sasanqua, 19: 74 Campanula persicifolia, 22: 54 — rapunculoides, 54 Campsis tagliabuana ‘Madame Galen’, 13: 7 Canada Blue Grass, 50 — , Gardening in Northern Manitoba, 7: 29-40 — Hemlock, 26: Plate I, 3 Canby, William M., 2: 18, 20 Candelabras, Christmas, 29: 128, Plate XXXIII, 129 Cankerworm, 1: 39; 19: 4, 7, 8, 9 Canton, scenes in, 2: Plate I, 3, Plate II, 5 Cape Cod Beach Plum Growers As- sociation,^: 63 Capsicum annuum, 81 -- ‘Celestial’, 15: 81 ‘Floral Gem’, 1^: 81 Caragana arborescens, 17 : 20, 28 — brevifolia, 7: 33 — frutex, 17: 20, 28 — jubata, 7: 34 Carbon bisulfide gas, 1_3: 50 Care of the Garden During War Time, Short Guide to,^: 9-16 Carex caryophyllea, 52 — hirta, 22: 51 — muricata, 52 18 INDEX TO VOLUMES 1-29 Carey, John, 17, 18 Carissa grandiflora ‘Tom Hum- phreys’, 1 Carpinus, Plate XL, 145 — betulus, 20, 26 compacta, 8: 47 fastigiata, 9: 2 — caroliniana, 28; Plate XII, 125 — cordata, 16: 36, Plate XII, 35 — japonica, 1&. 36, Plate IX, 35 — orien tails, 38 — turczaninovii, 16: 38 Carrot, 22: 54 Caryaalba, 1: 54;!^: 30 — cordiformis, L 54; 12^: 30 -glabra, 1: 54; 12: 30 —, horticultural varieties, 12: 30, 31 — illinoensis, 2: 11 — laciniosa, L 54, Plate VII, 57; 4: 6; 12: 30, Plate XI, 33 X illinoensis, 2: 1 1 — ovalis, 1: 54; 1^: 30 -ovata, 1: 54; 2: 11; 4: 6; 12: 30; Plate XVI, 129 — pecan, 11 — pests, 19: 4, 7 Case Estates,^: 8;_7: 3-7, 12, 14; 13: 19; 16: 9, 5 3, Map, Plate V, 16 , experimental areas, 18: 42 , ground covers, IS: 42 , map of the, 24; 18: Plate IX, 43;^: Plate III, 8 — , nursery areas, 18: 41 — , nursery permanent, 18: 42 — , Open House at the, 23; 16: 15; 17: 36 — , roads between Arnold Arbo- retum and Map, 7: Plate I, oppo- site p. 4; 1^: Plate X, 44 — , small trees, 1^: 42 Case, James B., _3' 8; 7^: 3 — , , estate, frost damage, 4: 27 — , memorial, _3 : 8 Case, Miss Louisa W., 3^: 8; 7: 3; 18: 41;^: 53, 66, 67 Case, Miss Marion Roby, 7: 3; 18: 41;^: 53-67 Cashew, 4: Plate V, 35 Casoron, A New Weed Killer to Protect Woody Plants, 21-23 — , advantages, 21-22 — , disadvantages, 29: 22 — , use in the Arnold Arboretum, 22-23 Caspia, 1^: 80 Castanea and horticultural varieties, 12: 31 — crenata, 1_: 56;^: 10; 1^: 3 — dentata,^: 10;^: 6 — mollissima, 1_: 56;^: 10; 31 X crenata,^: 10 — - ‘Ruling’, 16: 20 ‘Meiling’, 1^: 20 ‘Nanking’, 16: 20 — pumila, 6 -sativa,2: 10;^: 123, Plate XV, 128 Casuarina equisetifolia, 15: 72; 16: 72;^: 67, 72 “ Catalpa pests, 19: 4, 7 Catchfly, Night-Flowering, 18: 18 Cat-of-Nine-Tails, 1^: 74 Cat’s Ear, 52 Cattails, 1^: 74; 18: 20 Ceanothus, 23: 83 — griseus ‘Louis Edmunds’, 1 — X ‘Julia Phelps’, 1 — pallidus roseus, 16: 38 Cedar apple rust, 1^: 2, 7, 8 — , Incense, 71 — of Lebanon, 16: 38; 1^: 14, 15 -, Red, 15: 63, Plate XII, 65; 1^: 62; 19: 60, Plate XII, 71 -, Salt, 1^: 64 — Waxwing, Plate I, 7 -,White, 72, Plate XI, 65 Cedrus atlantica, 1^: 38 — deodora, 54; 1^: 38; 1^: 63, 74 — - ‘Kashmir’,^: 1, 2, 10, Plate I, 11 -libani, 6: 11; 8: 10; 12: 6; 14: 49 16: 38; 19: 72; Plate IV, 7 19 ARNOLDIA Cedrus libani ‘Sargenti’, 12 , witches’-broom, propagation, 27: 48 Celandine, Greater, 53 — Lesser, 53 Celastrus, h 45 — angulata, 7: 58 — flagellaris, 8; 47, 38;^: 2 — orbiculata, 8: Plate XVI, 53 major, 8: 48, Plate XVI, 53 — pests, 19: 2, 5, 7 — scandens, 55 — species, fruiting, 82, 84, 85 Central Experimental Farm, Ottawa, Canada, 7:33 Cerastium tomentosum, 1^: 22 Ceratopetalum gummiferum, 19^: 77 Cercidiphyllum japonicum, 7: 28; 12: 8, Plate VI, 16; 14: 49; 16: 72; 17: 20, 28 Cercis, 19 — canadensis, 6: 11; IJ: 58 — - alba, 12: 8; 14: 49 , color comparison of flowers, 7: 42 -- ‘Flame’, U: 15 ‘Wither’s Pink Charm’, 10, 11 — reniformis ‘Oklahoma’, 15 — siliquastrum, germination of seed, Plate II, 6 Chaenomeles, ^ : 44 — X californica, 50 group, 23: 50-53 — cathayensis, 27 group, 23: 27 hybrids, 23: 18 — X clarkiana, 23: 53 group, 53 — , color study of, 7: 48-52 — , Cultivars of the Genus, 23: 17- 75 , orange, 72; pink, 70- 72; red, 73-75; white, 23 : 69; white-and-pink, 69 of undetermined species or hybrid group, 23: 65-68 Chaenomeles, International Regis- tration Authority, 87 — japonica, 28 alpina, 28 group, 28-30 japonica, 28 pygmaea, ^:29 — lagenaria, 17_- 20, 28 — , list of all known cultivar names, 19-25 — pests, IV: 2, 7 — speciosa, 30 group, 30-50 — X superba, 23: 53 group, 54-64 — X vilmoriniana, ^ : 64 group, 23: 64, 65 Chamaecyparis, 18: 1 — , Dropmore Variety, 7:36 — lawsoniana, 19: 69;^: Plate XIII, 126 — - ‘Ellwoodii’, 12 ‘Filiformis compacta’, 12 ‘Forsteckensis’, 12 ‘Pygmaea argentea’, 12 — nootkatensis ‘Compacta glauca’, 12 — obtusa, 11: Plate IX, 31; M: 2, 49, Plate I, 3 ; Plate X, 103, Plate XI, 103 ‘Compacta’, 12 ‘Contorta’, 12 ‘Coralliformis’, 28: 12-14 ‘Filicoides’, 14 ‘Kosteri’, 14 ‘Lycopodioides’, 14 ‘Lycopodioides aurea’, 14 ‘Mariesii’, 23: 14 ‘Nana’, 14 ‘Nana aurea’, 14 ‘Nana gracilis’, 14 ‘Pygmaea’, 15 ‘Pygmaea aurescens’, 15 -- ‘Sanderi’, 15 ‘Stoneham’, 15 ‘Tempelhof’, 15 ‘Tetragona aurea’, 1^: 14; 15 20 INDEX TO VOLUMES 1-29 Chamaecyparis pests, 19: 5, 7 — pisifera, 18j. Plate I, 5 ‘Boulevard’, 15 ‘Compacta variegata’, 15 - - ‘Filifera’, 17: 24, 26 ‘aurea’, 14: 15 ‘nana’, 16 --‘Golden Mop’, 16 lutescens, 14: 15 --‘Nana’, 16 ‘Nana aureovariegata’, 16 ‘Nana variegata’, 16 - - ‘Plumosa’, 17: 24, 26 ‘Plumosa argentea’, 1^: 15 ‘Plumosa aurea’, 14: 15 ‘Plumosa compressa’, 16 ‘Plumosa flavescens’, 14: 15 ‘Plumosa’ hedge, Plate VI, 27 ‘Squarrosa’, 14: 2;17: 28; 1^: 1, 2, Plate I, 5; 24: Plate XI, 103 ‘Squarrosa intermedia’, 16, Plate VII, 17 ‘Squarrosa minima’, 16 — thyoides, 1^: 72 ‘Andelyensis’, 18 ‘Ericoides’, 18 Chamaedaphne calyculata, 17: 65 Chamaedorea elegans, 1_5 : 66 Chamberlin, Jacob, 80, 81 Change in Name, A Simple, 1, 2 Charles Stratton Dana Greenhouses, The,^: 33-48 Chayote, 4^: Plate IV, 33 Checkerberry, 1^: 68 Check-list of Cultivar Names in Wei- gela,^: 49-69 Chelidonium majus, 5 3 Cheng, Wan Chun, 8: 4 Chenopodium album, 4: 4 Cherries, The Better Oriental, 1^: 17-24 , pests and culture, 10: 18 , propagation, 18 Cherry, Cornelian, 16: 21 Cherry, False Jerusalem, T5^: 81 -, Fuji, 1^. 21 — , Higan, 21 — , Jerusalem, 15^: 81 — , Mazzard, 10: 18 — , Naden, 24 — , Oriental, 12 , Fugenze, 12: Plate IV, 12 — , Sargent, 1^: 17, 20, 21 — tree collection, 18: 16 — , Weeping, 22 — Yoshino, 22 Cherry-laurel, Schipka, lY: 74 Chestnut, 1: 55, 56 — , American, 10 , horticultural varieties, 12: 31, 32 —, Chinese, 1: 56;^: 10 — , European, 2: 10 —, Japanese, 1: 56;^: 10 Chichorium intybus, 4: 4 Chickweed, 18 Chicory, 4: Plate II, 5 Child, Mrs. Anna, 80 Child, Benjamin, 80 Child, Grace, 80 Child, Joshua, 80 Chimonanthus praecox, 2: 8 Chinabells, 2: 4 Chinese Bush Cherry, The, Prunus tomentosa, 81-86 -Cherry, 81 — Chestnut, 16: 72 varieties, 1^: Plate VI, 19, 20 — Fringetree, 1, Plate I, 3, Plate II, 4 — New Year, Flowers of the, 1-8 , Lily, 2: 2 Scene, Plate III, 7 — Witch-hazel, _8: Plate IV, 10 Chionanthus, 16 — retusus, 1 — species, fruiting, 10: 82 — virginicus, 7 : 5 3 ; H : 4 ; ^ : Plate V, 21; Plate III, 15; m 1 Chironia baccifera, 19: 76 21 ARNOLDIA Chloranthus glaber, 19^: 7 3 — spicata, 8 Chlordane powder, 1^: 8 Chloromone, 17: 47 Christmas basket of nuts, Plate XXXIII, 128, 129 — Cactus, 1^: 80 — candelabras, Plate XXXIII, 128, 129 — corsages, Plate XXXIV, 128- 130, 131 — decorations, berried plants, 1^: 53 evergreens, 1^. Plate XIII, 53, 55 from woody plant materials, 16: 61-72;^: 11M33 , materials prominent in various areas, 1_8: 54 , show of holiday, 18: 53-56 — , “Fearsome Critters”, 1^: 72; Plate XXXV, 130-132, 133 — floral arrangements, 2^: Plate XXXIV, 130, 131 — garlands, 16: 70; Plate XXXII, 126-128 — greens, display, 1^: 60 — kissing ball, 1^: 68, 69; 29 : Plate XXIV, 113, 120-124, Plate XXVIII, 121 — noveleties, 1^: Plate XVII, 65, Plate XXI, 71-72 — plants, 1^: 61-84 — -, Africa, 19: 74 Around the World, 19^: 59-77 , Australia and New Zealand, 19: 76, 77 , Belgium, Netherlands and Lux- emburg, 70 , Caribbean area, 19: 68 , Europe, IV: 68 , Germany, J_9: 70 , Great Britain, 19: 69 in the Boston Area, 1_5: 61-84 , India, 19^: 72 , Ireland, 19: 69 , Israel and Lebanon, 19: 72 Christmas plants, Japan, IV: 73 , Scandinavia, IV: 70 , South America, 68 , Spain, 19: 70, 72 , Thailand, IV: 73 , tradition and the trade, 19^: 60 , United States, IV: 60-72 — Rose, 1^: 82 -show, 15: 84; 1^: 53-56 — swags, Plate XXVIII, 120, 121 — tree decorations, 1^: 54 — trees, IV: 61, 62, 63 for decorations, Plate XXVII, 119, 128 — wreaths of foliage, cones and fruits, IV: 61-68; Plate XXIV, 113, Plate XXV, 115, Plate XXVI, 117, Plate XXIX, 122, Plate XXX, 123, Plate XXXI, 125, Plate XXXII, 127, Plate XXXV, 133, 124-126 Chrysanthemum, 19: 73 — , International Registration Au- thority,^: 87 — leucanthemum, 22: 52 Chrysanthemums, 19: 66 Cicuta maculata, 1^: 20; 72 Cinquefoil, bush, Purdom, 17: 22 — , Three-toothed, 17: 74 -, Wineleaf, 17: 74 Citrus medica sarcodoctylus, 8 — taitensis, L5: 81 Cladrastis, 19, 20 — lutea, 12: 56, 57 ‘Rosea’, 88 — platycarpa, ^ : 20 — sinensis, 20 Clark, George O., Blueberry Cages, 8: 25-28 Clarke, W. B.,^: 24, 26-28 Classes-see Arnold Arboretum, Fall I Classes, Spring Classes Clavatia cyathiformis, j4: 2 Cleaning seeds, jV : 47 Clematis collection, h 24 given Arnold Arboretum 50 22 INDEX TO VOLUMES 1-29 Clematis ‘Lady Caroline Neville’, U: Plate XVIII, 62 — lanuginosa, 2: 50 — montana rubens, IJ: 8, Plate I, 3 — paniculata, 12’. 59 — texensis, IJ: 8 — vitalba, IJ : 8 Clethra alnifolia, 17^: 29 rosea, 1_1: 4 — barbinervis, 8: 48 Cleyer, Andrew, 17: 10 Cleyera, 17: 10 — japonica, 11: 10, 12 forma tricolor, 17: 12 Climb, Some Ways Plants, 53-67, Plate XVIII, 57, Plate XIX, 59, Plate XX, 61, Plate XXI, 63, Plate XXII, 65, Plate XXIII, 67 Climbers, branch, 55-58 — , inflorescence, 28: 58 -, leaf, 60-62 — , root, 62-64 — , twiners, 53-55 — , weavers, 2^. 64 Climbing Bittersweet, 22: 55 — Hydrangeas and Their Relatives, U: 17-39 Cion, definition of, _3: 10 Clover, Red, 22: 50 -, White, 'U: 50 Cock’s Foot Grass, 50 Cocoa-shell mulch, 11^: 33, 34 Cocos nucifera, 79 Code of Nomenclature for Cultivated Plants, 18: 65-68;^: 1-8 Coggeshall, Roger G., 1^: 46; ]A: 32; I^: 24, 39 , Asiatic Maples, Their Propa- gation from Softwood Cuttings, 17: 45-50 , Polyethylene Plastic, Its Ap- plications to the Propagation of Hardwood Cuttings, )A: 57-63 , Propagating Some Rarer Plants from Seed, 1^. 25-28 , Rooting Ghent Azaleas under Plastic, 2^: 1-7 Colchicum autumnale,^: 75 Cold storage house, Plate XVI, 44 Collecting seeds of woody plants, U: 41 Collection dates of seed of woody plants, 7: 53-56 Collinia elegans, 66 Colman, Norman Jay, Award, 10: 71 Color, Autumn see Autumn Color — Chart, New, 17: Plate XIII, 59, 57-60 — Chart, Royal Horticultural, 12: 41-44 — , names for, or terms used for,_7: 46 — of bark of woody plants, 7: 61-68 — post cards, \A: 10 —Standards, American Horticulture Needs to Adopt Uniform, 7: 41- 52 — standards, reasons for adopting, 7: 41-44 Colorado Spruce, 5: Plate XIII, 69 Colored foliage, some shrubs and trees with, M: 13-19 Colorful twigs in early spring, plants with,^: 15 Colors of one hundred hardy Azal- eas, The flower, 12: 41-44 Columnberry, Truehedge, 17: 20 Colutea arborescens, L6: 72 Concerning the Registration of Cul- tivar Names, 1-8 Cones, 16: 64, 68, 70, 72 — and fruits for wreath-making, 16 : Plate XVIII, 66 Congdon, Joseph, W., 2: 18 Conifer Cuttings, Rooting of, ^ : 85-90 Conifers at Dropmore, A list of, Ij. 39 — Dwarf, from Witches’-Brooms, 29-50 Conium maculatum, 6:50; 80; 26: 73 23 ARNOLDIA Constable, James, 2r. 17 Contributions of the Arnold Arbo- retum,^: 51 Control of Plant Development with Maleic Hydrazide The, 1^: 33-37 Convallaria majalis, 14: 22,2^: 54; 26: 75 Conversion data, Nickerson Color Fan, 17: 60 Convolvulus, 22: 55 — sepium, 18: 20 Coon, Nelson, A Home Arboretum, 41-44 Cooperating Nurserymen, 64; 1^ 34, 50, 51 Copeland, Harold W., U: 73 , Heath and Heather on Cape Cod,^: 103-106 , Hurricane “Donna” and its after effect to a Chatham, Massachu- setts, Garden,^: 67-73 Cork Tree, Amur, 1^. 45 Corn, hybrids of, 7_: 15 Cornelian Cherry 17^: 20 Cornus alba, 7: 61; 1^: 57 ‘Angustipetala’, 21: 11 ‘Argenteo-marginata’, 21: 11 ‘Atrosanguinea\ 21: 11 --‘Behnschi’, 2T: 12 ‘Boxwood’, 12 - - ‘Elata’, 'n: 12 ‘Elegans’, 12 ‘Elegantissima’, 12 ‘Elegantissima variegata’, 12 ‘Elongata’, 2A: 12 ‘Froebeli’, 12 ‘Gibbsii’, 12 ‘Gouchaultii’, 21: 12 ‘Kesselringii’, 21: 12 ‘Rosenthalii’, 2A: 12 sibirica,_7: 61, 62; 11: 6; 16: 20, 38; 1^: 57, 58; y: 12 ‘Elegantissima’, 12 ‘Variegata’, 21: 12 ‘Spaethii’, 2A: 12 ‘Spaethii aurea’, 21: 12 Cornus alba ‘Tricolor’, 12 ‘Variegata’, 12 ‘Variegata aurea’, 12 vars., 14: 15 ‘Westonbirt’, 12 — alternifolia, ^ : 1 3 ‘Albo-marginata’, 13 ‘Albo-variegata’, 21: 13 ‘Argentea’, 14: 15;^: 13 ‘Coralina’, 21: 13 ‘Ochrocarpa’, 21: 13 ‘Ochroleuca’, 13 ‘Umbraculifera’, ^ : 13 ‘Variegata’, 21: 13 ‘Virescens’, 21: 13 — amomum, 21: 13 ‘Angustifolia’, 21: 13 ‘Aurea’, 13 ‘Aurora’, 21:13 ‘Grandiflorum’, 13 ‘Grandifolia’, 21: 13 ‘Parvifolia’, 13 -- ‘Undulifolia’, n: 13 ‘Xanthocarpum’, 13 — brachypoda ‘Variegata’, 21: 13 — controversa, 21: 13 ‘Fastigiata’, 21: 14 ‘Variegata’, 21: 13 — Cultivars Names, 9-18 — florida, 1: 6; 2: 36; 4: 18; 11; 14: 52;^: 14;^: 1 ‘Alba-plena’, 1^: 6;^: 14 ‘Apple Blossom’, 88 ‘Ascending’, 14 ‘Aurea variegata’, y: 14 ‘Belmont Pink’, 14 ‘Cherokee Chief, 14; 89 ‘Cherokee Princess’, 14; 89 — - ‘Cloud 9’, 89 ‘Compact!’, 21: 14 , dates of bloom, 11, 12 — - ‘De Kalb Red’, 14; 23: 89 ‘Fastigiata’, 16: Plate X, 37, 40;^: 14 ‘First Lady’, 2 24 INDEX TO VOLUMES 1-29 Cornus florida ‘Purple Splendor’, ^9: 2 ‘Gigantea’, 14 ‘Hillenmeyer’, 14 ‘Magnifica’, 21;^: 14 ‘Moon’, ^:l4 ~ multibracteata, 1 : 6 --‘Nana’, 14 ' ‘New Hampshire’, ^ : 15 -- ‘Pendula’, 40;^: 15 --‘Plena’, 1: 6; 21: 15 ‘Pluribracteata’, 1: 6; 15 --‘Prosser’,^: 15 ‘Prosser Red’, 21: 15 -- ‘Pygmy’, 61 --‘Rich-Red’,^: 15 ‘Rose Valley’, 15 ‘Rosea’, 15 ‘Rubra’, 21: 15 ‘Rubra’, color comparison of flowers, 7 : 42 - - ‘Salicifolia’, 15 ‘Spring Song’, 89 ‘Springtime’, 61 -- ‘Super Red’, 15 ‘Sweetwater Red’, 89 ‘Variegata’, 21: 15 ‘Weaver’, 21: 15 -- ‘Weeping’, n-. 15 -- ‘Welchii’, 21: 16 ‘Welch’s Junior Miss’, 2 -- ‘White Cloud’, n: 16 -- ‘Willsii’, 16 ‘Xanthocarpa’, ^ : 16 — , International Registration Au- thority, 87 - kousa, 16 chinensis, 14: 52; 16 ‘Milky Way’, 16 --‘Rubra’, 21: 16 ‘Speciosa’, ^ : 16 ‘Variegata’, 14: 15; y: 16 ‘Viridis’, 16 ‘Xanthocarpa’, ^ : 16 - mas, 15: 14; 17: 20, 26; 20: 11; 21: 16 -- ‘Alba’, n: 16 Cornus mas ‘Albocarpa’, 16 ‘Andrzej owski’, 16 ‘Argentea’, 21: 16 ‘Argenteo-marginata’, 21: 16 ‘Argenteo-variegata’, 16 -- ‘Aurea’, 16: 21;2A: 16 ‘Aurea-elegantissima’, 21: 16 ‘Crispa’, 17 ‘Elegans-tricolor’, 17 ‘Elegantissima’, 17 --‘Flava’, 17 ‘Lanceolata’, ^ : 17 ‘Luteocarpa’, 17 ‘Marcrocarpa’, 17 ‘Mietzschii’, 17 -- ‘Nana’, 11; n : 17 ‘Polonica’, 17 ‘Polonica minor’, 17 ‘Pyramidalis’, 17 -- ‘Rubra’, U : 17 ‘Sphaerocarpa’‘ 17 ‘Variegata’, 21: 17 — - ‘Violacea’, n-. 17 ‘Xanthocarpa’, 17 — nuttallii, 17 -- ‘Eddiei’, n: 17 ‘Winkenwerderi’, ^ : 17 — officinalis, 5: 2 — , pests of, 19: 5,7 — racemosa, 17: 20, 26; 17 -- ‘Slavin’s Dwarf, 17 — , registration list of cultivar names, n : 9-18 — sanguinea 18 ‘Atrosanguinea’, 18 ‘Mietzschii’, 18 ‘Variegata’, 13 ‘Virdissima’, 14: 15; 18 — sibirica, 18 ‘Coral Beauty’, 18 — stolonifera, 1&. 21; 18 ‘Angustipetala’, 21: 18 -- ‘Elata’,^: 18 ^ ‘Elongata’, 18 ‘Flaviramea’, 18 ‘Kelsey dwarf, 18 -- ‘Nana’, 21: 18 25 ARNOLDIA Cornus stolonifera ‘Nitida’, ^ : 18 ‘Pendula’, ^ : 18 -- ‘Repens’, 21: 18 ‘Xanthocarpa’, 18 Corsages, Christmas, 1^: Plate XXI, 17; 29: Plate XXXIV, 128-130 Corylopsis, 4: 18; 7: 28 — platypetala, 8: 48 — species, 5: 2; PS: 14 — spicata, 8: 10; 15: Plate III, 45 — veitchiana, 2A : 44 Corylus americana, 1: 56; 4: 6; 12: 32 — avellana, 1: 56; 12^: 32 — colurna, 16: Plate VII, 18, 21, 22;^: Plate VII, 10 , horticultural varieties, 12 : 32- 34 — cornuta, 1: 56; 12: 32 — maxima, 1: 56; 12: 32 purpurea, 1^: 15 — species and horticultural varieties, 2: 10 Cotinus americanus, 1, 2 — coggygria, 1, 2 , fruiting, 1_0: 82 purpureus, lA: 15 — - ‘Velvet Cloak’, 2^: 2, 3 — obovatus, 2^: 1,2 Cotoneaster adpressa, 1^: Plate X, 57, 58 praecox, 15:58 — apiculata, 15:58 — bacillaris, 14: 27 — , Bearberry, 17: 65 — bullata, 15: 58 floribunda, I^: 58 — congesta, 58 — conspicua, 15: 58 decora, IJ: 58 — dammeri, H: 6; 14: 27; 1^: 58; 17: 65 ~ ~ ~ ‘Skogsholmen’, 10 — dielsiana, 58 elegans, 15: 58 — disticha, 14: 27 — divaricata, IJ.: 6; 15: 58 Cotoneaster foveolata, IJ: 58 — francheti, 1^: 58 — frigida, 58 vicarii, I^: 58 — horizontalis, 14: 22; 15: 59; 19: 70 — hupehensis, 59 — integerrima, 5 : 84 — lucida, IJ: 59 — microphylla, 15: 59; 17: 65 cochleata, 15: 59,17: Plate XIV, 63 thymifolia, 1_5: 59 — multiflora, 10: 75; IJ: Plate X, 57 calocarpa, IJ: 59 — pests, 19: 3, 5, 7 — , prostrate, 54 — racemiflora soongorica, IJ: 59 — salicifolia, 19: 70 floccosa, IJ: Plate IX, 55, 59 — simonsii, IJ: 59 , small-leaved, 17: 65 — tomentosa, 15: 59 — with little ornamental vlaue, 60 — zabeli, IJ: 59 miniata, IJ: 59 Cotoneasters of varying heights, IJ : 53-60 Cottage garden, 5: Plate XVI, 85 Country Cousins, 1-7 Cotton bolls, 15: Plate XIV, 74, 77 Courses at the Arnold Arboretum, 14: 33, 34; 15: 52; IJ: 4, S,17: 16, 60; ;8: 39; 19: 58; 20: 40; 22: 8, 24, 68;^: 88;^: 72;^: 8, 124; see also Arnold Arboretum, classes Coville, F. C., 2: 29, 30 Cowbane, Spotted, 18: 20 Cowberry, I_7: 75 Cowslip, 4: Plate III, 31 Crab, Manchurian, 6: 12 Crab Apples, 3: 23; 4: 22; 6: 11; 10 , Annual bearing, 32 26 INDEX TO VOLUMES 1-29 Crab Apples, Best of the, 10: 25-28; 19: 17-20 — — for flower, 1^: 26, 27 — - for fruits, 1^: 27, 28; 16: 29-32 , colored foliage, with, 10: 28 , dates between which fruits are colorful and effective, 3: 42, 43; 16: 30, 31 , ‘Dorothea’, 16 : Plate III, 11 , double or semi-double flowers, 19 : 18 , dual purpose, 28 flowering on Peters Hill, 12 : 46 , foliage color, 19 : 18, 19 for America, 3: 23, 44, 56 for Ornamental Fruit, 3: 41- 44; 16: 29-32; 19: 18 for form, 1^: 28 further trials needed for, 19: 20-22 , lasting fruit, 18 of merit, 19 : 15-22 , parthenogenetic, 26 , pink flowers, 1^: 17 , pink and white flowers, 17 , red to purplish flowers, 19: 17 , reddish-purple flowers, 1^: 17 , unique forms, 19 : 20 , white flowers, 19 : 17 Craggy Gardens, Blue Ridge Park- way, Asheville, N. C., Plate XI, 25 Crataegus sp., 14 : 52 — arnoldiana, 26 — ‘Autumn Glory’, 22: 32 — coccinoides, 28 — crus-galli, H: 21, 26; 28 — X lavallei, 28 — mollis, 22 : 28 — monogyna, 17 : 21, 26; 28 ‘Biflora’, 30 — - ‘Inermis’, U: Plate XIII, 46; 16 : Plate X, 36;^: 30 ‘Stricta’, 30 — X mordenensis ‘Snowbird’, 2 ^: 3 — nitida, 30 — oxyacantha, 30 Crataegus oxyacantha ‘Paulii’, 22 : 31 — - ‘Plena’, Plate IX, 29, 31 ‘Punicea’, 31 — oxyacantha var., 5: 80 — pedicellata as understock, 75 — pests, 19 : 2, 3, 7 — phaenopyrum, Plate VIII, 27, 31 ‘Fastigiata’, 22: 31 — pinnatifida major, Plate IX, 29, 31 — pruinosa, 17 : 21, 27; 31 — punctata, 3 1 — succulenta, 32 — ‘Toba’, 22 : 32 — X ‘Vaughn’, 3 — viridis, 22: 32 --‘Winter King’, 3 — wattiana, 22: 32 Crayton, F. M., 2: 18 Creech, John L., Expeditions for New Horticultural Plants, 49- 53 Note on Ligustrum ibolium, 12: 48 Crimson King Maple, 11 : 71 Crinkle Bush, 15: 80 Cryptomeria japonica, 8: 10; 14: 2; 1^:74 -- ‘Lobbii’, Plate IX, 43 ‘Vilmoriniana’, 18 Cudahy, Mrs. Joseph M., 2: 50 Cultivar Names, Concerning the Registration of, 1-8 in Cornus, 9-18 in the Genus Chaenomeles, 17-75 in Ulmus, Registration of, 24 : 41-80 in Weigela, Checklist of, 49-69 of Fagus, Registration List of, U: 1-8 of Liquidambar, 60-62 of Syringa vulgaris offered for sale, 19: 27, 28 27 ARNOLDIA Cultivated Plants, New International Code of Nomenclature, 1^: 65-68 — relatives of the Camellia, 17: 1-12 Cunninghamia lanceolata, Plate IX, 43 Cup Plant, IS: Plate V, 20, 23 Cupressus, 19: Plate XII, 71 — arizonica, 1^: 67, 72, 74 — macrocarpa, 19: 63 ; Plate IV, 7,29: Plate XL, 145 — sernpervirens, 1^: 72 horizontale, 1^: 72 — toiulosa, 19: 74 Currant, mountain, 12' 22 Cuttings, from juvenile plants, 1J:46 — from mature plants, 17 : 46 two year old, of Rhododendron ‘Gloria Mundi’, W: Plate I, 3 Cutworms, garden, 1: 39, 40; 3: 3 Cyathus olla, 4: 2 Cyclamen, International Registra- tion Authority, 87 Cydonia japonica, 17 — lagenaria, 18 — sinensis, 23: 18 Cynanchum nigra, 1^: 6 Cynara scolymus, 1^: 72 Cypress, Arizona, 19: 67 Cyrilla racemiflora, 9: 2; 1^: Plate XI, 47 Cytisus austriacus, 7 : 36 — decumbens, 7: 36 — elongatus, 7 : 36 — hirsutus, 7:36 — leucanthus Schipkaensis, 7:36 — nigricans, 7:36 — praecox, 6: 1 1 ; 8; 22, 24, 48; 9: 2; 11: Plate 1, 5, 6; 16: 40, 41 luteus, 16: 41 — purpureus, 7: 36; 8: 48, 50; 9: 2; 13: 11; 14: 22 — scoparius, 1^: 68 , hardy form, 16: 21 Dactylis glomerata, 22: 50 Dahlia, International Registration Authority, 87 Daisy, English, 52 — ,Ox-Eye, ^ Damage due to hurricane, 14: 37, 40 to winter, 13 Dana Greenhouses, Plate XIV, 33-37 Dandelion, Fall, 52 Daphne cneorum, 17: 65 — collina, 7:36 — giraldii, 7:33 — mezereum, 5: 84; 7: 36; Plate XX, 66, 67 — tangutica, 7:33 Dasylirion sp., 15 : 74 Data, local climatological, W: 52 Date florets, 1^: Plate XIV, 74, 77 Datura stramonium, 73 Daucus carota, 54 Day-lily, 22: 54 Davenport, John, 2: 17, 18 Davidia involucrata, 8: 24; 11: 72 Davis, Deacon Ezra, 21: 81 Davis, M. B., 7: 33 Davis, Sarah, 81 Dawn Redwood, 11: 28; 113- 122: see also Metasequoia DDT, 7: 26, 18-23; 13: 52; 14: 8 — , concentrate, l^' 83 — , wettable powder, 1^: 83 Deadly Nightshade, 55 Decaisnea fargesii, 7:58 Decumaria, 17, 32 — barbara, 24: 32 — , key to the species of, 32 — sinensis, Z4: 33 Delphinium, International Registra- tion Authority, 87 — spp., 73 Demonstration and ground cover plots at the Case Estates, Weston, Map, 14: 23, 16: 53-60 plot, small ornamental trees, 16: Plate IV, 10-14 , Ground Covers, 16: 5 3-60 Deptford Pink, 54 Desert Spoons, 15' Plate XIV, 74, 77 ~ Destroy dead Elm wood immediate- ly, 8: 17-20 28 INDEX TO VOLUMES 1-29 Deutzia candelabrum 8: 50 — ‘Contraste’, 8: 50 — gracilis, \1\ 29 — ‘Magicien’, 8: 50 — rosea eximea, 8: 50 DeWolf, Dr. Gordon P., Jr., appoint- ed Horticultural Taxonomist, ^ : 28 Albizia julibrissin and Its Culti- var ‘Ernest Wilson’, 29-34 Identification of Unknown Plants, 51, 52 Introduction of Our Hardy Stewartias, 41-48 Notes on Making an Herbarium, 69-111 Dr. Donald Wyman, Supple- ment 3 pp. following p. 8 Dianthus armeria, 22: 54 — barbatus, 5: 84 — caryophyllus, _5 : 84 — , International Registration Au- thority, 87 Dicentra spp., 26: 75 Dieffenbachia seguine, 74 Dieldrin, H: 83 Diervilla lonicera, IJ: 11; 14: 22 Digitalis purpurea, 73 Dill, Fred F., 9: 63 Diospyros kaki, 2:12 — virginiana 2: 12; Plate XII, 125 Dipsacus fullonum, 76 — sylvestris, 1^: 76 Dirca pests, 2, 5, 7 Directional signs, carved wooden, 2A: 12 Disease of Elms, Phloem necrosis, 7: Plate III, 17-23 Diseases, 19: 2-9 DN or Dinitro, 13: 83 -Slurry, 13: 83 Dogwood, 4: 23; 6: 11 I — , flowering, upright, 1^: Plate X, 37,40 gray, 17: 20 — , Siberian, 1^. 57 Dogwood, Tatarian, 7: 61; 1^ 57; 66, 67 — , twig borer, 19: 5, 7, 9, 56 — , weeping, 1^: 40 Doorenbos, Mr. S. G. A., 13: 26 Dormancy, 1^: 42 — , complex, 34 -, double, 14: 27;^: 36 — in seed 14: 26 Douglas Fir, 1^: 63 ; 17: 24; Plate I, 3 Dove-tree, 8: 24 Dried fruits, flowers and cones, I^: 72 , plant parts, 1^: 78 — materials on the Boston Market, I^: Plate XIII, 54, 55 Dropmore hybrids, (Spiraea) need- ing more trial, 58 Dropmore, Manitoba, Canada, 7: 29-40 Drought, 7: 57; 17: 61 Dudley, T. R., Ornamental Mad- worts (Alyssum) and the Correct Name of the Goldentuft Alyssum, U: 33-45 Dumps, Plants for Screening Junk- yards, Gravel Pits and, 45-48 “Dura-Clear”, ]J_: 50, 51 Dutch Elm Disease, 7: 17-23; 8: 17- 20; 11: 41, 89; 2, 6 , control of, 7: 17-28 , four-point plan to combat it, 8 : 20 Laboratory, University of Massachusetts, 7 : 21 , no positive practical control for disease fungus or bark beetles, 8: 18 , sanitation as best present method of control, 8: 18, 19 , what one town has done to combat it, 8:19 Dutchman’s Pipe, 54 Dwarf Conifer Collection, The New, Plate V, 11, Plate VI, 13, Plate VIII, 9-27 29 ARNOLDIA Dwarf Conifers from Witches’-Brooms 29-50 — Trees, TO: 73-78 , pruning repotting and water- ing, U: 34, 35 , training, IT: 32; ]A\ 2-7 , winter protection, 1^: 35 Dwarfed Trees, Japanese, 14: 1-7 Dwarfing rootstocks, trees grafted on, 10: Plate XV, Plate XVI, 75, 77 — trees, new techniques for, 15: 11 — understocks, 10: 73-77 Early church, sketches, TA : Plate IX, 79 Early spring,_5: 1-3; 16: 1-4 Edible wild plants of eastern North America, 44; 4^ 8 Edinburgh Botanic Garden,^: 30 Education Program at the Arnold Arboretum, 14: 33-36 Effect of light on seed germination, 11 : 40 Eighty Trees for the Small Place, 16: 9-15 Elaeagnus angustifolia, 1^: 8; 1^: 52; 17: 21, 27 — , Autumn, 17: 21 — umbellata, J7: 21, 26 Elderberry, native, 16: 48 Electric Council of New England, 23: 1 Ellery, Bessie Collier (Mrs. William), Ghent Hybrid Azaleas are Hardy in New England, _3^: 37-40 Elliottia at the Arnold Arboretum, 29 : Plate IV, 19 — , multiple shoots of, 2^. Plate IV, 19 — , propagation by root cuttings, 29: 18 — , seeds, 29: 18 — , stem cuttings, 29: 20 — racemosa and its propagation, 29: 17-20 Ellis, John, J7: 68 Elm Bark Beetle, 2,6,9 I Elm, Chinese, 17:22; 18: Plate XIV, 59 ; — Disease, Dutch, see Dutch Elm Disease — leaf beetle, H 39; 4, 9 — leaf miner, 19:3,9 j — species, lJ_:TIate XVIII, 82 i Elms, Asiatic, 1_: 68-70; 11: 81-84 , — , European, H 70-73; IT,: 84-86 I — Grown in America, D. 65-80; Ij. : | 79-93 — in the Arnold Arboretum, 14: | Plate XI, 53 I -, keys to, H 77-80; 11: 89-93 — , native American, 1_: 65-68; IT.: 79-81 I — , — to both Europe and Asia, 1: 73-77; 11: 86-89 —, Watch the, 17-23 Elscholtzia stauntoni, 12: 59; 26: Plate XIX, 64 Embossed or record label, 9, 10 Emergency food manuals, 4: 29 English Ivy, kS: 1, 3 Enkianthus,^: 2 — campanulatus, IT: 7 — quinqueflorus, 2: 1, 4 Entomology, Bureau of U. S. D. A., 2_: 22 I Epigaea repens,^: 16,28;^: 6 ! Epimedium grandiflorum, M: 22 j Epiphyllum, 19: 70 ^ Erianthus ravennae, 1^: 80 i Erica arborea alpina, 2^ 104, 105 — carnea,^: 36; 17: 14; 19: 70; I 104-106 — cinerea, 23: 104, 106 — X darleyensis, 23: 104, 106 — vagans, 23: 104, 106 — X watsonii, 23: 104, 106 Ericas grown at Chatham, Mass., 35 1 species and varieties of, 23; 105, 106 Eriobotrya japonica, 19^ 74 Eriocaulon decangulare, 1^ 79 Eriogonum, 1^: 83 , Espaliered Cotoneaster horizontalis, 29 : Plate XVI, 57 30 INDEX TO VOLUMES 1-29 Espaliered Forsythia, Plate XVII, 59 — Mulberry in Holland, Plate XV, 55 — Pear in Paris, 2^: Plate XIV, 5 3 — Plants, 29: 45-59 , A few of the designs used in growing, 29: Plate XIII, 51 Espaliers, some of the best plants for,^: 52-58 Establish an Arboretum or Botan- ical Garden, How to,^: 69-83 Eucalyptus, 15: 66, 78; 72; 23: 123 — , Corkscrew, Plate XII, 66, 69 — globulus, 15: 66 — gunnii, 23: Plate XVII, 130 — polyanthemos, 21: 78 — spp., 26: Plate VII, 10 — , Spiral, 25j Plate XII, 69 Eucommia ulmoides, 23: Plate XIV, 123, 127 Euonymus,2j 41-51 — alata, 2_: Plate VIII, 41-44, 46 aperta,2_: 46 clone, 1&. 41 compacta, 2^ 42, 44; 2: 46; IV. 7; 17: 21 ‘Compactus’ Hedge, 27: Plate III, 24 — americana,^: Plate VIII, 43, 46, 49 — atropurpurea, 2_: 42, 46 — ‘Berry Hill’, 22: 44 — bulgarica,2_: Plate VIII, 43, 44, 46 — bungeana,^: 41, 42, 46 semipersistens, 41, 42, 44, 46 — , chart of ornamental character- istics, 2_: 46, 47 — ‘Dupont’, 21: 44 — europaea,2.: Plate VIII, 41-44, 46; 26: Plate XXI, 66. 69 alba,2_L 46 aldenhamensis,2j 42, 46 atropurpurea,_2: 42 Euonymus europaea atrorubens, 2j 41,42,46 aucubaefolia, 2: 46 ‘Globe Form’,2i 46 intermedia,^: 42, 46 nana,2j 46 --‘Red Cap’, 27: 62 ‘Red Cascade’, 1^: 23 — fortunei,2j 46, 48; 27* — - ‘Berry Hill’, 21: 66 carrierei,!: Plate IX, 45, 46, 48; 27: 66 colorata, 2: Plate IX, 45, 46, 48;2i: 8; U: 22;27: 66 ‘Dupont’, 2Z: 66 -- ‘Gold Tip’, 21: 89 — - gracilis, 2^: Plate IX, 45, 46, 48; 24: 15;2Z: 66 kewensis,2_: Plate IX, 45, 46, 48; 11: 12; 14: 24; 16: 64; 27: 66 ‘Manhattan’, 17: 66 minima, 1_: Plate IX, 45, 46, 48; 23: 12; 14: 24; 17: 66 radicans,!; Plate IX, 45, 46, 48 reticulata,lj Plate IX, 45, 47 ‘Silver Queen’,!; Plate IX, 45, 48; 24: 15;21: Plate XV, 66, 67 vegeta, 2: Plate IX, 45, 47, 48; 21 : 66 — hamiltoniana,! 47 — japonica, 2: 44, 47, 49 -, Kew, 26: 64 — kiautschovica, 2: Plate VIII, 43, 44, 47 ~ — lanceifolia,! 41, 44, 47 — latifolia,! Plate VIII, 41, 43, 47 — maackii, 2: Plate VIII, 43, 44, 47 lanceolata,! 47 — macroptera, V. 44, 47 — ‘Manhattan’, 21: 44 — nana,! Plate VIII, 43, 47 — nikoensis,! Plate VIII, 43, 47 — obovata, 2: 42, 47 — oxyphylla^ 2: 47 — patens,! 44 — pauciflora,! 31 ARNOLDIA Euonymus phellomana, 47 — pests, 19.: 2, 5, 7 — radicans,^: 48 acuta, 48 — sachalinensis, ^ Plate VIII, 41, 43,47 — sanguinea,^: Plate VIII, 41, 43, 44, 47 — ‘Sarcosie’,^: 44 — scale,!: 48; 17: 66; 19: 2, 5, 7, 9 — semen ovii,!_: 47 — semiexserta,!; 47 — shrubs,!: 44 — species showing variations in leaves and buds,!^ Plate VIII, 43, Plate IX, 45 — trees, ! 42 — verrucosa, ! 47 — vines, ! 48 — winged, dwarf, 17: 21 — yedoensis,! Plate VIII, 41, 43, 44, 47 Eupatorium fistulosum, 18_: Plate IV, IV, 20, 21 Euphorbia cyparissias, 26: 73 — pulcherrima, 1^: 81; 1^: 64; 26: 74 European Mistletoe (Viscum album) The,!9: Plate XXI, 69-72 — Pine shoot moth, 2, 6, 8 Eurya, ^7: 12 — chinensis, EZ: 12 — emarginata, 17_: 12 — japonica, j!: 12 — latifolia variegata, 12 — marginata, 17: 12 — ochnacea, r7: 10 Evenings with Friends, Supplement, 29 : following p. 72 Everett,!. H.,!l: 37 Evergreen ground covers, Ih 1 Evergreens, Broad-leaved, in the Arnold Arboretum, 17: 61-76 , in good condition, J_: 21-23 , injured,!: 22 — , colored foliage, ! 65, 66;! 17- 20 — dwarf, 6: 12 Evergreens in Governor’s Garden, i Williamsburg, Va., 11: Plate XVII, j 78 — Winter Foliage Color of Narrow- leaved,! 17-20 Evodia danielli, j! 8; 52; 16: Plate XI, 39,41;^: 2 j — hupehensis, 41;^: 2 Exhibit of pruning at 1953 Boston i Spring Flower Show, 13j 21 ' Exhibition of Photographs of Bonsai ; Available on Loan, An, !5_: 28 Exocarpos cupressiformis, 1^: 77 j Exochordia giraldii wilsonii, !8: I Plate III, 2, 5 — korolkowi, 1^: 18, 23 — racemosa, !8 : 2 — species,! 10 Expeditions for New Horticultural Plants, !6: 49-53 ^ — to the Alaska Military Highway, 1943-1944, 4: 65-72 Experiments in dormancy, ^3: 55 Fagus crenata, 22: 6 — engleriana, 22: 6 — grandifolia,!: 28; U: 21, 26; ! 2;!3: Plate XVI, 129 caroliniana, !2 : 6 — -, hedge, 2^. Plate IV, 25 pubescens, 22: 6 — , International Registration Au- thority,!^: 87 ^ — japonica, 22: 6 — longipetiolata, 22 : 6 — lucida, 22: 6 — , not recommended, 22: 6, 7 — orientalis, 22: 6 — pests, !!: 4, 7 ! — , recommended, 22: 2-6 — , Registration List of Cultivar Names of,!4: 1-8 — sieboldii, 2^. 6 — species !4: 52 — sylvatica, 1!: 21, 26; 2!: Plate I, 2,3 ‘Asplenifolia’, 22: 2 atropunicea, L4: 1 5 ; !2 : 2 32 INDEX TO VOLUMES 1-29 Fagus sylvatica atropurpurea, 22: 6 - - ‘Cockleshell’, 27: Plate XX, 62, 63 crispa, 22: 6 ‘Cristata’, 22: 6 ‘Cuprea’,^: 2 dentata, 22: 6 ‘Fastigiata’, 4; Plate XXXVI, 137 grandidentata, 72: 6 heterophylla, 7 incisa, 7 ‘Laciniata’, 22: 4 ‘Latifolia’, 22: 7 ‘Luteo-variegata’, 22: 7 macrophylla, 7 ‘Miltonensis’,^: Plate VIII, 11 nigra, 7 - - ‘Pendula’, 22: Plate II, 4, 5; 2^: Plate VI, 9 in Hunnewell Arboretum, 12: Plate XIII, 65 purpurea, 2^. 1 purpureo-pendula, 22: 4 ‘Quercifolia’, 22: 4 ‘Quercoides’,^: 7 -- ‘Rivers’, 22: 4 riversi, 14: 16 -- ‘Rohani’,12: 4 ‘Roseo-marginata’, 22: 4 ‘Rotundifolia’, 4 sanguinea, 22: 7 ‘Spaethiana’,^: 6 ‘Tortuosa’,^: 6 ‘Tricolor’, 7 Fall classes, see Arnold Arboretum Fall Classes - fruits, _7^: 58 Fan Memorial Institute of Biology, A: 4 Fan, Nickerson Color, 17: Plate XIII, 57-60 , conversion data, YU 60 “Fantazma”,15: 79 Farlow Herbarium, _7: 4 Farrand, Mrs. Beatrix,^: 23, 48; 7^: 1, 5,7;21: 37 Farrand, Mrs. Beatrix, The Azalea Border,^: 6, 7 , Contemplated Landscape Changes at the Arnold Arbo- retum,^ 45-48 , Peters Hill,_9: 38-43 Fatsia japonica, 19^: 74 “Fearsome Critters”, 1^: Plate XXI, 71,72;^: Plate XXXV, 130-133 Federal Quarantine No. 38, 9 Fermate, : 66 Fern, Neptune, 1^: 84 Fernald, M. L.,^: 44 Fertilization, effect of, on time of growth of seedlings of three spec- ies, 7 Fertilizer, 1^: 13 Festoons, 1^: 61 Field classes, see Arnold Arboretum Fall Classes, Spring Classes Field trips, 21: 74 Fifty of the Better Ground Covers, 14: 21-24 — years of gardening in Northern Manitoba,^: 29-40 Fijian plant studies,^: 51 Filbert, H 56, 58 — , American, Jj 56 — , beaked, 1: 56 — , European, j_: 56 — , horticultural varieties, J_: 56, 58; U 10; 12: 32, 33 -, Turkish, 16: Plate VII, 21, 22 Filmore, Richard H.,^: 2 , Control of Plant Develop- ment with Maleic Hydrazide, 10: 33, 37 , Growing Rhododendrons from Seeds,_^ 45-5 1 Fir, Balsam, 15: Plate XI, 63, 65; J6: 62;19: 60, 64 — , Douglas, 15: Plate XI, 63, 65; 19: Plate X, 60, 61, 70 — , Fraser, J^: 66 -, Silver, 70 — , Spanish, 72 — , Subalpine, 19^: 62 33 ARNOLDIA Fir, terminal bud, Jj Fig. 9 (a), 66 twig,_3: Fig. 8 (a), 66 -, White, 17: 24 Fire-blight, 3, 7, 8, 9 Firethorn, 48 Firs, simple key to the,_^: 65 Fisher Professorship of Natural His- tory,^: 18 Five Interesting Trees, 1J_: 71-74 Flag, Blue, 22: 50 Flamingo Flower, 1^: 82 Flat-headed apple tree borer, 1^: 5, 9 Flint, Dr. Harrison L., appointed to the Arnold Arboretum staff, 54 Country Cousins, 2S: 1-6 How to Have a Good Hedge, 2J: 17-22 Plants with Colorful Twigs in Early Spring, 15, 16 Seasonal Hardening in Trees and Shrubs,^: 57-60 Seasonal Hardening in Trees and Shrubs Useful Even Though Not Winter-Hardy, 26: 61-63 September Bloom, 69, 70 Some Horticultural Activ- ities of Justin Smith Morrill, 23.-. 41-52 and Donald Wyman, Plant Hardiness Zone Maps, 27: 53- 56 Flora Buttons, il: Plate XIII, 73, 79 Flora of Fukien and Floristic Notes on Southeastern China, ^ 51 Flower buds apparently not injured, i7: 14, 16 --killed, 17: 14 — Colors of One Hundred Hardy Azaleas, The 12: 41-44 Flowering displays in the Arnold Arboretum, 14: 9, 10 -shrubs, 10: 29-32,41-56 Flowers of the Chinese New Year, 2 : 1-8 Fogg, John M., Jr., _5_: 56 Foliage, changes in,^: 57-68 — , colored,^: 59 — , Colors of Narrow-leaved Ever- greens, Winter,!^: 17-20 Woody Plants, April to Sep- tember,^: 57-68 Fontanesia, 25: 16 Food Plants in the Arnold Arbo- retum, j4_: 1-7 — For the Record, 13_: 37-40 Forcing Hardy Woody Plants, 15 : 1-4 Fordham, Alfred 2-,7_: 2; 1^: 24 Dwarf Conifers from Witch- es’-brooms, 27: 29-50 Elliotia racemosa and its Propagation, 29: 17-20 Germination of Woody Le- gume Seeds with Impermeable Seed Coats, 1-8 Propagation and Care of Lilacs, 19: 36-45 Propagation of Albizia juli- brissin, 28: 36-40 Propagation of Liquidambar styraciflua, 21: 66 Propagation of Prunus to- mentosa, 24: 86-87 Propagation of Woody Plants by Seed,^: 33-40 Seed Dispersal by Birds and Animals in the Arnold Arbo- retum,^: 73-84 Tsuga canadensis and Its Multitude of Variants, 23: 100-102 and Williams, Robert G., Arnold Arboretum Spray Schedule, The, “New Spray Materials,'’ 13: 69-84 Forestiera, 25: 17 Forest-Tree Breeding Work of the Cabot Foundation, 1^: 1-8 Form, definition of,_3j 9 Forsythia, 25: 16 34 INDEX TO VOLUMES 1-29 Forsythia, Arnold Arboretum Seedling No. 22716, 10: 16 — ‘Arnold Dwarf, ^ 10;_^ 50; 10: 16; 13: 12; 14: 24;15: 10; 18: 2; 19: 12; 21: 37, 39 - ‘Arnold Gianf, 2: 10 ; 10 : 16;15_: 8; 20: 49, 50; 21: 37, 39 — ‘Beatrix Farrand’, 19: 12; 2^ 49, 50; 21: 37,40 — , border, 17: 21 — europa, 7: 25; 10: 15; 19: Plate I, 13 “ “ “ — ‘Farrand’,15: 10; 16: 41; 21: 37, 40 — giraldiana, 10 : 1 5 — ‘Gloriosa’. 21: 42 — ‘Golden Bell’,^: 42 — ‘Golden Queen’, 21: 42 — ‘Golden Sun’, 21: 42 — , International Registration Au- thority,^!: 87 — intermedia, 10: 9, 10, 15, 16; 15: 10;17: 21, 26; 21: 35-41 ‘Arnold Dwarf, see Forsythia ‘Arnold Dwarf ‘Arnold Giant’, see Forsythia ‘Arnold Giant’ — ‘Arnolds Brilliant’, 21: 40 --‘Aurea’,21: 35, 38, 40 ‘Beatrix Farrand’, see Forsythia ‘Beatrix Farrand’ ‘Compacta Nana’,!!: 40 — - ‘Densiflora’,10: 13-15; 21: 40 ‘Dwarf,!!: 40 ‘Farrand’, see Forsythia ‘Far- rand’ — - ‘Karl Sax’, 20: 49-52, Plate XII, 51;_21: 37,40 — - ‘Lynwood’, 21: 37, 40 ‘Lynwood Gold’, 1^: 12; 21: 37,40 ‘Mertensiana’, 21: 37, 40 — - ‘Nana’,^: 40 ‘Primulina’,!; 2; I^: 13, 15, 16; 21: 36,41 ‘Spectabilis’,!: 2;7j 25; 10: 13-15;!!: 8; 16: 42; 19: 12, Plate I, 13; 20: 49; 21: 36, 41 Forsythia intermedia ‘Spring Glory’, 21: 36,41 ‘Variegata’, 14: 16 — - ‘Vitellina’, 10: 15; 21: 36, 41 — japonica, 10: 15 saxatilis, 1^: 15, 16; 15: 10; L9: Plate I, 13; 21: 35 — ‘Karl Sax’, 49-52, Plate XII, 51; 21: 37,40 -‘Lynwood Gold’, 1?: 12; 21: 37, 40 — ovata, 5: 2; 7: 10;9j^2; 10^: 2, 4, 6, 10, 15, Plate I, 5, Plate II, 7; 15: 8; 19: 14, Plate I, 13; 49; 21: 37; 25: Plate III, 15 X europaea, 10: 15 ‘French’s Florence’, 27: 62 ‘Robusta’, 21: 41 — , Registration Lists of Cultivar Names of, 2f 39-42 — ‘Spring Glory’, l^: 16; 1^: 12 -Story, The, 21: 35-38 — suspensa, lOj 15, 16;!1: 41 atrocaulis, lOj 16; 21: 37 ‘Nyman’s Variety’, H: 37 --‘Aurea’,21: 38,41 ‘Aureo-variegata’, 21: 41 ‘Decipiens’, 10: 16; H: 36, 41 fortunei, 10: 15, 16; 19: 11, Plate I, 13 ‘Fortune! Aurea’, 10: 14 ‘Fortune! Nana’, 21: 41 — - ‘Pallida’, 10: 16; 21^ 36, 41 — suspensa pubescens, 10: 16 sieboldii, 10: 10, 16; 19: Plate I, 13;21: 35 ‘Variegata’, !1: 41 — viridissima, 10: 9, 10, 15, Plate V, 11; 21: 35-38,41 ‘Bronxensis’, 10: 14, 16; 21 : 37,41 koreana, 16; H: 35 ‘Variegata’. 21: 41 Forsythias, 4: 21;19j 11-14 -, The, 10: 9-16; 14: 10 — , color comparisons of flowers, 10: 13 — , dwarf varieties, 10: 12 35 ARNOLDIA Forsythias, introduction into coun- try, 10 — , leaf key, 15 — , notes on species and varieties, 1^: 15, 16 — , pruning, 10: 10, 12 —, value, 12-14 Fortune, Robert, 35 Forty-five of the Best Shrubs for Massachusetts Gardens, 11: 1-20 Forty -five of the Best Trees for Massachusetts Gardens, 12: 1-20 Foster, William, 9: 63 Fothergilla species, H: 7; 1^: 10 Frame, wire, 17: 47 Franklin, Benjamin, 17: 6 Franklinia, 6, 8 — alatamaha, 1^: 59; 17: 6, Plate II, 7;^: 2 Fraxinus, 25 : 17 — angustifolia, 26: Plate VIII, 11 — excelsior, Plate IV, 18 — ornus, Plate IV, 18 — pennsylvanica lanceolata, 16: 23 — pests, 19: 2, 3, 4, 7 Fresh foliage plants, 66 — wreath materials, F5 : 70 Fringe Tree, flowers of the, 1_5: Plate V, 21 Fruiting Habits of Certain Woody Plants, 81-85 Fruits, artificial, 83 — , Baldwin apples, 52 — , Christmas basket of, 128, Plate XXXIII, 129 — , Cornus florida, 52 — , — kousa, W: 52 — , chinensis, W: 52 -, fall, 7: 58 — , Ilex verticillata, 52 — , Lowbush Blueberry, 52 — , McIntosh apples, 52 — of ornamental woody plant genera, seeds of which should be cleaned before shipping, 1_3: Plate IX, 43 Fruits of ornamental woody plant genera, seeds of which should not be allowed to dry out prior to sowing, n : Plate X, 49 — of ornamental woody plant gen- era requiring no cleaning before shipping, H: Plate XI, 5 3 — , ornamental, 52 — remaining March 26, 1943, h 14- 15 — , sources where they may be ob- tained, h 48 — this fall, 7_: 58 — , Viburnum, 52 — , white, 3: 46, 48 — , yellow, 3 : 45-48 — , — or white growing in Arnold Arboretum, _3: 45-48 ‘Fugenzo’, Oriental Cherry, 12,: Plate IV, 12 Functions of an arboretum or bo- tanical garden, W: 71, 72 Fungicide, 13: S3 Galanthus nivalis, 5: 84 Galax, 2: 16, 17, 21, 22, 24, 26 — aphylla, IJ : 67 Galeopsis tetrahit, 1^: 18 Garden Club of America, The, Tours the Arnold Arboretum, 6 : 9-12 Gardeners’ and Florists’ Club of Boston, 6: 28 Gardening in Northern Manitoba, 7: 29-40 Gardens, Best Shrubs for, in Massa- chusetts, y.: 1-20 Gardens, Best Trees for, in Massa- chusetts, 12^: 1-20 Gardner, F. E., y: 6 Garlands, making of, 1^: 61, 70, Plate XX; 126-128, Plate XXXII, 127 Gaultheria procumbens, 4: 6; 14: 24; y:68; 17: 66 — shallon, 15^: 68 36 INDEX TO VOLUMES 1-29 Gaylussacia brachycera, 17: 66, 67 Genera of Theaceae native to the United States, 17: Plate I, 5 Genista sagittalis, 7:36 — sylvestris, 7:36 — tinctoria, 7:36 Germander, Chamaedrys, 75 Germination of Woody Legume Seeds with Impermeable Seed Coats, 1-8 Ghent Azaleas, Rooting under Plastic, W: 1-7 — Hybrid Azaleas are Hardy- in New England, h 37-40 Gill-over-the-Ground, 22: 52 Ginkgo biloba, 8: 1; 1^: 52 fastigiata, 17 : 29 Girdling Root, 1^:23 Gladiolus, International Registra- tion Authority, 87 Glasshouses, The, 38 Glecoma hederacea, 22: 52 Gleditsia, 25, 26, 31-33 — ‘Excelsa Pendula’, 32 — ferox, 32 — - ‘Nana’, n -. 32 — horrida, ^ : 32 ‘Major’, y: 32 -- ‘Nana’, 21: 32 ‘Purpurea’, 32 — , International Registration Au- thority, 87 — japonica, 32 ‘Purpurea’, 26, 32 — pests, 19: 5, 7 — , Registration Lists of Cultivar Names in,^: 31-34 — sinensis, 26, 32 -- ‘Major’, n: 32 -- ‘Nana’, n-. 32 ‘Nana Inermis’, ^ : 32 ‘Pendula’, 32 — X texana, 26 — triacanthos, 11: 71; 15: 74; 17: 21, 29;^: 26, 32, Plate III, 32 X aquatica, 21: 26 ‘Calhoun ,21: 32 ‘Columnaris’, 32 Gleditsia triacanthos f. inermis, 21: 26, 32 ‘Beatrice’, 21:33 ‘Browni’, 21: 33 ‘Bujotii’, 3 3 ‘Bujotii Pendula’, 33 ‘Elegantissima’, 21: 26, 33 ‘Imperial’, 21: 33 ‘Majestic’, 3 3 ‘Moraine’, 26, 33 ‘Park’, 21: 33 ‘Pendula’, n: 33 ‘Shademaster’, 21: 33 ‘Sieler’, n: 26, 3 3 ‘Skyline’, 33 ‘Stephens’, 3 3 ‘Sunburst’, 16: 23;'^: 26, 33 ~ “ ‘Variegata’, 34 , germination of seed, Plate II, 6 ‘Millwood’, 32 ‘Monosperma’, 21: 32 ‘Moraine’, 12: 8; 14: 52 Glenmore Arboretum at Buffalo Creek, Colorado, The, 5^: 65-76 Gloriosa superba, 26: 75 Glossary, Revised, of the More Com- mon Botanical and Horticultural Terms, 25-44 Golden Oak scale, 19: 2, 6, 8 Gordon, James, 17: 4 Gordonia, 17: 4, 5 — axillaris, 17: 2 — lasianthus, 17: 6 — pubescens, 17: 8 Gossypium hirsutum, 15: 74 Grafting dwarf trees, 10: 73-77 Grass, Ravenna, 15: 80 — , Sweet Vernal, 50 — , Timothy, 22: 50 -, Velvet, 52 -, White Bent, 50 Gravel Pits and Dumps, Plants for Screening Junkyards, 45-48 Graves, George, Hibiscus syriacus, 1: 41-44 Looking towards Beach Plum Cultivation, 9: 53-64 ARNOLDIA Gray, Asa, 2: Plate V, 19 , His Quest for Shortia gala- cifolia, 13-28 — Herbarium, 7: 4 Green, Peter S., Herbaceous Aliens in the Arboretum, 49-56 Leucothoe fontanesiana, 23 : 93-99 Name Jasmine, The, 71- 74 ~ Olive Family in Cultivation, The, 13-27 Registration of Cultivar Names in Ulmus, 41-80 Greenhouses, new, 22: 33-48, Plate X, 35, Plate XI, 377Plate XII, 39, Plate XIII, 40, 42, Plate XV, 43 Gregorian calendar, 21: 81, 82 Grevillea robusta, : 80 Ground cover bank planting, sea- shore, in Scotland, 16: Plate XV, 60 demonstration plots, 11: Plate VII, 23; 13: 21-24, Plate IV, 13; 16: 9, 53-60, Plate XIV, 55 , Results of Trials in, 9- 16 for different purposes, 1^: 5 - — for dry soil, 13 : 5 for shade, 13 : 5 less than 6 inches high, 13 : 5 plants in demonstration plots— 167 plants listed according to row and plot number, 23: 10- 14 “ already established, 11: 22-44 and demonstration plots at Case Estates, Weston, Map of, U: Plate V, 23 at the Case Estates listed, 16: 54-59 “ , Fifty of the Better, 14: 21-24 , twenty-three of the best for Massachusetts gardens, 13 : 2 which increase rapidly, H: 5 Ground Ivy, 52 Ground-breaking ceremony, 22: Plate X, 35 ~ Ground-pine, 1^: 62, 70 Grove, Colonel William R., 11: 49 Growing Rhododendrons from seeds, 9: 45-51 Growth, method of, in Scots Pine, Plate X, 35 — of woody plants, time of, effect of fertilization, ^ : 6,7 Gymnocladus dioicus, 21: 27, Plate II, 25 ~ — seed, Plate I, 4 Gypsophila repens rosea, 14: 24 Hale, Capt. Jonathan, ^ : 76, 81 Hale, Richard W., 1:3,4 Halesia monticola, Plate XII, 49; 12: 10, Plate IV, 12; 14: 52 Hall, George R., 9: 18 Hamaniielis intermedia (#1173-28- B), W: 11 ‘Arnold Promise’, 111, 114, Plate VI, 112, Plate VII, 113; 10 — japonica, 8: 10;^: 11 — mollis, 8: 10; 11: 7, Plate V, 17; 16: Plate I, 4; 19: 70; 20: 11 — vernalis, 8: 10; 11: 7 — virginiana, 12: 59; 19: 70 Hamblin, Stephen, 8: 20 Hansen, Miss Anna, 9:63 Hansen, Peter, 9:63 Hardiness map for the United States, 3: 53; 54-55 — notes. Rhododendrons, 2: 53-56 — Zone Maps, Plant, 5 3-56 Hardwood cuttings, propagation, 14: 57-63 Harris, F. L., 12: 67 Harvard Biological Laboratories, 7: 14, 16 — Botanical Museum, 7: 4 — Department of Botany, 7: 4 — Forest, 7: 4, 14, 16 Hatfield, T. D., 12: 67 Hawthorn, L4: 10;^: 25-32 — , Dotted, 22: 31 — , Downey, 28 -, English, 17: 21;^: 30 38 INDEX TO VOLUMES 1-29 Hawthorn, Fleshy, 32 -, Frosted, 21;^: 31 — , Glossy, 30 — , Green, 32 — , Kansas, 28 — , Large Chinese, 31 — , Lavalle, 28 — leaf miner, 3, 7 — of merit, 26-32 — , Single Seed, 28 — , Washington, 22: 31 -, Watts, 32 Hazelnuts and Filberts, 2: 10 Heartnut, 1: 54 — and horticultural varieties, 30 — Hybrids, 2: 12 Heath and Heather on Cape Cod, 103-106 Hebe, International Registration Authority, 87 Hedera helix, 14: 24; 17: 68; 1^: 1;^: 68, Plate XXI, 69 — - baltica, 13 : 10; 17_: 68 ‘Rumania’, Yh. 68 --‘268th Street’, 17: 68 Hedge, best plants, ^ : 18-19 — demonstration plantings, 22 — Demonstration Plot, Report on the A. A., 5: 49-56; IJ'. 17-32, Plate VI, 19 — experiment, 6:12 — fertilization and watering, ^ : 20 — . How to Have a Good Clipped, 17-22 — pruning for best results, ^:19- 20, Plate I, 21 — starting a, 17-18 Hedges, fair, 17: 27 — for Special Purposes, 135-146 — , good to excellent, 17: 26 -, planted 1963, U: 97, 98, 100 — , poor, 17: 27 Helianthus tuberosus, 4: 7; IS: Plate III, 19 Helichrysum bracteatum, 1^: 76 Helleborus niger, the Christmas- rose, 5: 86, Plate XVII, 87; 17: 82; 19: 70 Hemerocallis fulva, 54 — , International Registration Au- thority, 87 Hemlock, 15 : 71; 62 — , Arboretum,^: 49, 60;^: 101 — , Canada, 1^: 63, Plate XI, 65; 17: 25, Plate Vll, 23;^: Plate I, 3; 48, 50, Plate XIX, 49 , compact, 12'- 25 — , Carolina, 17: 25 — , needle of, 3: Fig. I (a), 58 — , Poison, 80 — , Queen of Conifers, 6: 49-56 — , Sargent weeping, IS: 15 Hemlock Hill, rehabilitation of, 6: 48 Hemlocks and Spruces, Simple Foliage Key to the, 3: 57-64 Hemp-nettle, IS: 18 Henry, Louis, 6: 7 Hepatica triloba, 2:21 Herbaceous Aliens in the Arbore- tum, 49-56 Herbaria and their use, 69-70, Plate XXIV, 71 Herbarium, Farlow, 7: 4 — , Gray, 7: 4 — , historical background, 70-72 — , Horticultural, 1^: 25-28 — , Introduced, The, 37-40 — , Notes on Making an, 2S: 69-1 1 1 — , preparation of specimens for, 72-90, Plate XXV, 73, Plate XXVI, 75, Plate XXVII, 77, Plate XXVIII, 79, Plate XXIX, 83, Plate XXX, 85, Plate XXXI, 87, Plate XXXII, 89, Plate XXXIII, 91 — , preserving succulent or fleshy plants, 97-98 — , storage containers, 92 — , suggestions for collecting particu- lar kinds of plants, 93-97 Herbicides, 1^: 5 Hibiscus esculentus, 75 — , International Registration Au- thority, ^ : 87 — rosa-sinensis, IS: 45 — syriacus, 1: 41-44; 1^: 46 39 ARNOLDIA Hibiscus syriacus ‘Admiral Dewey’, 18: 46 ‘Amplissimis’, 1^: 46 ‘Anemonaeflorus’, 1^: 48 ‘Ardens’, IS: 48 ‘Banner’, IS: 48, Plate XII, 49 ‘Bicolor’, 48 ‘Boule de Feu’, IS: 48, Plate XI, 47 ‘Celestial Blue’, IS: 48 ‘Coeruleus’, 1^: 48 , color groups of, IS: 50, 51 ‘Comte de Haimont’, 1^: 48 ‘Due de Brabant’, 48 ‘Elegantissima’, 1^: 48, Plate XI, 47 , early varieties of, 1:43 ‘Hamambo’, IS: 48 - - ‘Jeanne d’Arc’, 1^: 48 ‘Lady Stanley’, 1^: 48 - - ‘Leopold!’, IS: 48 ‘Mauve Queen’, 1^: 48 ‘Meehani’, 40 ‘Monstrosus’, 1^: 50 , newer varieties of, 1: 43-44 , order of bloom, IS^: 51 ‘Pompon Rouge’, 1^: 50 ‘Pulcherrimus’, 1^: 50 ‘Ruber Plenus’, 1^: 50 - - ‘Rubis’, IS: 50 ‘Sir Charles de Breton’, 50 ‘Snowdrift’, 50 ‘Speciosus Plenus’, IS: 50 variegatus, 14: 16 , varieties of, in Arnold Arbore- tum, 1^. 46, 48, 50 - - ‘Totus Albus’, IS: 50, Plate XI, 47 - - ‘Woodbridge’, 1^: 50 - - ‘W. R. Smith’, IS: 50 Hicans, 2:11 Hickories, 2: 11 Hickory hybrids, 2: 11 -nut, 1: 54-55, Plate VII, 57 , and horticultural varieties, 1: Plate VII, 54-55, 57, 12: Plafe XI, 30-31, 33 Hickory nut. Red, 1: 54 — , Shagbark, 1: 54 — , Shellbark, 1: 54 Highbush Blueberry, The, 2: 29-32 Hillcrest boys and staff, W: Plate XIV, 63 — Gardens, Weston, Massachusetts, m 53-67 Hippophae rhamnoides, ]A: 16; 29 ~ History of the Introduction of Woody Plants into North America, On the, 6: 13-23 Holcus lanatus, 52 Holiday Decorations, IS: 53-56 Hollies, 14: 65-72 — , fertilizer for, 14: 69, 70 — , insects on, 14: 68 — , planting, 14: 66, 68 — , pruning, 14: 69 — , sexes in, 14: 69 — , transplanting, 70 — , Wheeler, 46 Holly, 14: 65-72; 15: 61, 67; 16: 62 — , American, 69, 70 Clark, 17: 24 — , hunting, ^A: 68 — , Japanese, 16: 64; 17: 68, 69 — , — , convex-leaved, 17: Plate VII, 23; 24 “ — , leaf miner, 5, 8 — , longstalk, 1^: 70 — , Sugeroki, 70 — , Yunnan, 16: 42; 17_: 70 Holly -grape, Oregon, 62; 17^: 73 Hollyhock, 22: 54 Home Arboretum, A, ^ : 41-44 Honeylocust, ‘Sunburst’, 18 — , common, 17: 21 Honeysuckle, 6: 2, 10 — , Amur, 64 — , Arnold, 60 — , Blue-leaf, 64 — , Box, 64 — , Brown’s, 60 — , Coralline, 22: 60 40 INDEX TO VOLUMES 1-29 Honeysuckle, Cream, 64 — , Creeping, 66 — , Dwarf Alps, 59 — , Everblooming, 62 — , evergreen, 16 : 45 — , Giant, 62 -, Golden,^: 62 -, Hall’s 64 -, Henry, 62 — , Japanese, 1 ^: 44 — , Lilac, 66 — , Morrow, 64 — , Privet, 64 — , Pyrenees, 66 — , Sweet, 60 — , Tatarian, 21 — , Tellman, 67 -, Tibet, 67 — , Trumpet, 66 -, Winter, 21;^: 62 -, Yellow, 62 — , Yunnan, 67 Honeysuckles, 14 : 10;^: 57-67 — , flowering shrub, 58, 59 — , order of bloom, 59 — , recommended, 59 — , shrub, with pink to red flowers, 29-32 Hookers of Kew, 1785-1911, The, by Mea Allen (Book Review), 91, 92 Hopp, Richard J., and R. Jesinger, Rooting of Conifer Cuttings, 27 : 85-90 Hops, spent, 7: 69-72 HormodinNo. 3, 47, 50 Hormones, root-inducing, 46 Hornbeam, European, 1^: 20 Hornbeams, Oriental, Plate IX, 35 Horsechestnuts, 14 : 10 Horseradish, 22: 55 Horticultural Club of Boston, 6:25, 28 — colour chart, American sources for, 7: 72 , English, 7: 42,44-48 Horticultural colour chart, new 17: 57-60 — herbarium, 1 ^: 25-28 — terms, 15 : 25-44 Horticulture on Postage Stamps, 1^: 29-38 Horticulturist, Assistant, 6: 2 Horvath, M.H.,n: 36 Hosta sp., 14 : 24 How to prune, 14: 47, 48 How to spend an hour in the Arnold Arboretum, 4: 25-28 Howard, Heman, A., 6: 2; 7: 2, H: 70 , Labels in the Arnold Arbo- retum, 9-12 Howard, Richard A., Booklet on Lilacs from Russia, A, 19 : 31-35 , Charles Stratton Dana Greenhouses of the Arnold Arboretum, The, 33-48 , Check-list of Cultivar Names in Weigela, 49-69 , Check list of Cultivar Names used in the Genus Lantana, 73-109 , Concerning the Registration of Cultivar Names, 1-8 , Education Program at the Arnold Arboretum, M: 33- 34 , Hillcrest Gardens, Weston, Massachusetts, The, 20: 53-67 , Meadow, The, 18: 17-24 , Registration Lists of Culti- var Names in Cornus L., 21 : 9-18 , and A. L Baranov, Chinese Bush Cherry, The, Prunus tomentosa, 81-86 , and Carroll E. Wood, Jr., Christmas Plants in the Bos- ton Area, 1^: 61-84 “Howard-Seal,” U: 50 Hsueh, C. J., 8: 4 Hu, H. H., 8: 4 Huckleberry, 15: Plate XII, 67, 69 41 ARNOLDIA Huckleberry, Box, 17: 66, 67 Humulus japonicus, 55 Hunnewell Arboretum, 1852-1952, The, U: 61-84 , tree measurements, 12: 83, 84 , trees and shrubs introduced by, 12: 75-83 , , listed in, 12: 75-83 , , originated in, 75- 83 Hunnewell, H. H.,_l: 31; n: 62 Hunnewell, Walter, Sr., 12: 66 Hunnewell, Walter, Jr., 12: 61 Huntington, Henry S., 9: 19 Hupeh Evodia, 2 Hurricane “Carol,” 14: 37-40 — , damage, 6: 46; 14: 37, 40 — “Donna,” 20: 47-48, 52 and Its After Effects to a Chatham, Massachusetts, Gar- den, 67-73 — “Edna,” 14: 38 — losses, 14: 41-56 Hurricanes, rehabilitation of trees injured by, 14: 41-55 Hyacinthus spp., 26: 75 Hyams, George McQueen, 2:18 -,M. E., 2: 18, 20 ~ Hybrid Azaleas, IJ : 29 , naming, 3: 12 , in cultivation, ^ : 6, 7 Hydrangea, 14: 10; ^M: 19 — anomala, 19, 20, 22 subsp. petiolaris Plate III, 18, 20: Plate IV, 21; Plate V, 23 — arborescens grandiflora 26: Plate XIX, 64 ~ — asterolasia, 'M: 24 — diplostemona, 'M: 24 — integrifolia, 24: 24 — , International Registration Au- thority, 87 — jelskii, 2A: 25 — macrophylla, 76 — mathewsii, 24: 25 — oerstedii, 24: 25 Hydrangea peruviana, M: 25 — pests, 6, 7 — preslii, 25 — quercifolia, Plate XIX, 64 — seemanii, 26 — serratifolia, M: 26 — steyermarkii, 24: 26 — tarapotensis, M: 26 Hydrangeas and Their Relatives, Climbing,^: 17-39 Hypericum buckleyi, 1_3: 12; lA: 24; 1^: 42 ~ — cistifolium, 17: 21 — densiflorum, IJ: 29 — species, lA: 8 Hypholoma sublateritium, 4: 2 Hypochoeris radicata, 22: 52 Iberis sempervirens, 8: 21, 22 — - ‘White Gem’, 14: 12, 24 — tenoreana, 8:21 Identification of Unknown Plants, 51-52 Ihrig, Herbert, Amateur’s Observa- tions on Hardiness From Growing Rhododendrons in the Pacific Northwest, An, 2: 53-56 Ilex aquifolium, 15: 67, 19: 64, 69; ^:68, 69 ~ “ — aquipernyi, ^ : 68 — cornuta, 19: 64 , fruiting, I^: 81 — crenata, 17: 68, 69 and its varieties, W: 41-48 ‘Compacta’, 42 convexa, 9: 2; 11: Plate II, 8, 9; 17: Plate VII, 2, 24, 26;^: Plate X, 41,43 fortune!, 42 --‘Glass’, 17: 69;^: 42 — - ‘Green Island’, 17: 69; 42 helleri, 17: 69; Plate X, 42, 43 ‘Hetzii’, 42 — - ‘Kingsville’, 17:69;'^: 44 ‘Kingsville Green Cushion’, 17: 69; 20: 40 — - latifolia H: 68; Plate X, 42,43 42 INDEX TO VOLUMES 1-29 Ilex crenata major, 42 mariesii, 42 microphylla, 16: 64; 17: 68, 69;20: 41,42 ‘Mountbatten’, Plate III, 13, 12 “ rotundifolia, 42 ‘Stokes’, W: 44 stokesi 17 : 69 varieties, Plate XI, 45; 21: 69 — decidua, 19: 64 compacta, 8: Plate XIII, 43; 17: 69 -glabra, 8: 42; 17: 69 — , International Registration Au- thority, ^ : 87 — laevigata, 15: 67, 78 — , miscellaneous species ^ : 69 — mollis 2 : 24 — opaca 1±: 52; 1^: 67; 17: 69, 70; 19: 67, 21: 68 --‘Amy’, 14: 71 -- ‘Clark’, 17: 24, 26 -- ‘Elizabeth’, 14: 70, 71 — - ‘Emily’, 14: 72 ‘Freeman’, 14: 72 , fruiting, 81 , male, 14: 69 — - ‘Natale’, 14: 72 ‘Perpetual’, 14:72 — - ‘St. Ann’, 14: 72 — - ‘St. Mary’, 14: 72 varieties, ^ : 68 — pedunculosa, 10; 14: 52; 17: 70 — pests, 19: 5, 8 — plants and names to discard, W: 46 ~ — rugosa, 70 — serrata, 19: 74 — species, fruiting, 81-83 — sugeroki, 17:70 — varieties worthy of further trial, 44 — verticillata, 5 : Plate II, 11; 15: 67, 78; 19: 70 ~ Ilex verticillata ‘Nana’, 10 — vomitoria, 19: 64, Plate XIII, 75 — yunnanensis, 8: 50; 1^ 42; 17: 70 , fruiting, 10: 83-84 Impatiens biflora, 18: 18 Indian artifacts, 5: 76 Indigofera incarnata alba, 1^: 12; 14: 24 — kirilowii, IJ: 14; M: 24; 26: Plate XVIII, 62 Indolebutyric acid, 50 Indole-3-acetic acid, 17_: 47 Inkberry, 69 Insects, 19: 2-9 Institute for Research in Experimen- tal and Applied Botany, 7: 14, 16 Interesting Trees, Five, 11: 71-74 Internal dormancy, 1^: 27 International Code of Botanical No- menclature, 93 Nomenclature for Cultivated Plants, New, 18^: 46, 65-68; 85 — Plant Registration, 85-92 — Registration Authorities, 23: 85- 87 Introduction of Woody Plants into North America, History of, 6: 13- 23 Iris, Blue Flag, 18: 18 — , International Registration Au- thority, 87 — pseudacorus, 18; 49 — spp., 76 — , Swamp, 1_8; 18 — versicolor, 18: 18;^: 50 -, Yellow,^: 49 — , English, 17: 68 Japanese beetle, 19: 6, 7, 9 Japanese- Chinese Subregion, List of Plants Introduced in the Main Botanical Gardens in Moscow from the, 8-14 Japanese dwarf trees, 11: 29-35; 14: 1-7 “ “ 43 ARNOLDIA Japanese Flowering Quinces, 14: 10 — Hemlock, Plate IV, 6, 7 -Hop, n: 55 — Larch, 2 — Walnut, 1: 54 Jasmine, The Name, 71-74 Jasminum, 25: 19 — multiflorum, Plate V, 21 — nudiflorum, 5: 84; 19: 69 — polyanthum, Plate V, 21 Jenkins, Charles F., Asa Gray and his Quest for Shortia galacifolia, 2: 13-28 , Hemlock-the Queen of Con- ifers, 6: 49-60 Jensen, Holger, 1^: 9 Jerusalem Artichoke, flowering tu- ber, 4: Plate II, 5 Jesinger, Rolf, Rooting of Conifer Cuttings, 85-90 Jetbead, 72 Jewett, James R., Beach Plum Award, 9: 52, 63 Joe-py e-weed, 1^. Plate IV, 20, 21 Johnson, Vieno T., Prize, 9: 63 Judd, William H., 5: 3; 6: 23; 7: 2 , 1888-1946, Propagator at Arnold Arboretum, 6: Plate I, 25-28,49 , The William Henry Memorial Fund, 6: 28 Juglans, 12: 30 — cinerea, 2: 12; 4: 6 — cordiformis and horticultural varieties, 12: 30 ailantifolia, 12: 30 — nigra, 2: 11; 4: 6; Plate XI, 124 “ “ ~ lanciniata, 16: 42 — pests, 19: 4, 8 — regia, 12 — sieboldiana, 1: 5 cordiformis, H 54; 2:12 Juniper, 16: 62 — scale, 19: 2, 4, 8, 9 — web-worm, 19: 3,8 Juniperus chinensis aurea, 14: 16 ‘Aureo-globosa’, 14: 16 ‘Dropmore’, 18 -- ‘Kaizuka’,^: 18 ‘Maney’, 11, 12 -- ‘Mathot’, 18 -- ‘Old Gold’, 18 ‘Pfitzeriana argentea’, 1^: 16 ‘Plumosa aurea’, 14: 16; 18 ‘Plumosa aureovariegata’, 18 sargenti, H: 8; IJ: 14; 14: 24; 11 ‘Shoosmith’, 18, 19 — communis, 17: 29 ‘Compressa’, 2^: 19 — - ‘Effusa’, 19 — - ‘Gold Beach’, 19; 10, 11 --‘Minima’,^: 19 ‘Prostrata’, 19 ‘Repanda’, 19 saxatilis, Plate VII, 17, 19 — conferta, 19 — horizontalis, 13: 14; 14: Plate IV, 17, 24 -- ‘Alpina’, 19-20 douglasi, 14: 16, 17 ‘Glenmore’, 20 ‘Marcellus’, 20 — - plumosa, 3: 17; 13 : 14; 14: 24 -- ‘Prince of Wales’,^: 3 -- ‘Watnong’,^: 62 — - ‘Wiltonii’, 28: 20 — pests, 19: 2, 3, 4, 8 — procumbens, 20 — - ‘Nana’, 20 — sabina tamariscifolia, 20 — scopulorum, 5: Plate XIII, 69; 11 ‘Grey Gleam’ 20: 11 varieties ]A: 16 — squamata, 20 — - ‘Loderi’, 20 ‘Prostrata’, 20 — virginiana, 14: 52; 63; 24, 26; 19: Plate XII, 60; 20: 12 44 INDEX TO VOLUMES 1-29 Juniperus virginiana burkii, 16 glauca, 16 Junkyards, Gravel Pits and Dumps, Plants for Screening, 45-48 Juvenile Characters of Trees and Shrubs, IS: 1-7 — foliage forms, some, 18: Plate I, 5 Kalmia angustifolia, 17: 70 — latifolia, 6: 11; 8: 42; 15: 71; 17: 70, 71 --‘Benina’,^: 62-64 — leaf spot, 19^: 4, 8 — pests, 19: 4, 8 Kalopanax pictus, 8: 52; 9: 2; 12 : Plate III, 9, 10; 14: 52;16: 42 Katsura, Japanese, 16: 72 Katsura-tree, H: 20 Kentucky Blue Grass, 50 Kerria japonica aureo-vittata, 14: 16 “ Ketmie, 1: 41 Kew Botanic Garden, 7:30 Key, Christmas tree identification, 15: 63 -, Lilac, 19: 24 — to common Elm species, 1: 78 — to the Firs, 3: 65 genera of tree Legumes, 21: 30 Hemlocks and Spruces, 3: 57-64 Pines, 3: 49-56; H: 63-70 Theaceae cultivated in the Uni- ted States, H: 3, 4 Killing woody plants, 16: 6 with Chemicals, 61-71 Kingnut, 1: 54 Kinsey, A. C., 3: 44 Kissing ball, 16: Plate XVI, 63, 68; 29: Plate XXIV, 112, 120-124; Plate XXVIII, 121 Knight, Thomas Andrew, IS: 2, 6 Kobuski, C. E., British Gardens in War Time as Seen by an American Soldier, 5: 77-88 , Horticultural Herbarium, The, 18: 25-28 Kobuski, C. E., Revised Glossary of More Common Botanical Terms, 15: 25-44 Kodachrome slides on the Arnold Arboretum, 17: 60 Koelreuteria paniculata, 1^: 10; H: 52 ~ ‘September’, 64 Kolesnikov, L., 19: 31-35 Kolkwitzia amabilis, 7: 9; 17: 21, 26 Kriissmann, Gerd, 9 , Die Baiime Europas, Ein Tas- chenbuch fur Naturfreunde, (Book Review) 28: 68 Label, embossed or record, 'M: 9, 10 Labeling and mapping, cost of, 82, 83 Labels in the Arnold Arboretum, 8: 13-16;^: Plate I, 9-12 ~ — , types of, 8: Plate V, 14-16; 2A: 9-12 — , plastic, 24: 10 Labrador tea, 17: 72 Laburnum, 28 — alpinum, 8: 52;^: 21 ‘Fragrans’, 28 — anagyroides, 28; Plate XXII, 68, 71 — alschingeri, 21: 28 — vossi, )A: 52 — X watereri, ^ : 28 Lacebug, 19^: 4-9 Lactuca canadensis, IS: 20 -, spp., 4: 4 Lagerstroemia indica, Plate XIII, 123, 126 Landscape Changes at the Arnold Arboretum, Contemplated, 6: 45- 48 Landscape plants that are frequently winter-injured but return to use- fulness in one season, list of, 26: 63 ^ Lanolin emulsion, 16: 5 Lantana camara, U: 74 , a poster, Plate XXII, 75, Plate XXIII, 77 45 ARNOLDIA Lantana, Checklist of Cultivar Names Used in the Genus, 73-109 Lapin, P., Seasonal Rhythm of De- velopment of Woody Plants and Its Importance in Introduction, 2J: 1-14 Larch Case-bearer, 4, 8 — , European, ^A: 44 -, Golden, l&. 48 Larix decidua, 2 pendula, l&. 44 — gmelini japonica, 7: 34 — kaempferi, 2 — laricina, 2 witches’-broom, propagation, 48 — leptolepis, 1^: 1 1; U: 2, 52; 2 — pests, 4, 8 Larz Anderson Collection of Japan- ese Dwarf Trees, The, 11: 29-35; 14: 1-7 Latex emulsion, 67 Laurel, Mountain, 6:11 — , winter damage to, 8: 9 Laurus nobilis, Plate VIII, 11 Lavandula officinalis, Plate XXXVI, 137 “ Lavender, 53 Lawrence Scientific School, 7: 13 Layering plants in Holland, 13: 25 Lead arsenate, IJ: 83 Leatherleaf, H: 65 Lecture Series, “Meet the Staff,” 132 — slides on the Arnold Arboretum, 19: 14 Lectures, 74 Ledum groenlandicum, 72 Legumes, Tree, in the Arnold Arbo- retum, 19-30 Lehmer, Mary, Walter Street “Berry- ing” Ground, The, n-. 75-82 Leiophyllum buxifolium, 13: 14, 14: 24; 17:72 ^ Lemon Leaf, 1^: 68 Leontodon autumnalis, 22: 52 Lepidium virginicum, 4: 4; 15: 75 Lepiota naucina, 4: 2 — procera, 4: 2 ~ Leptospermum, International Re- gistration Authority, 23: 86 Lespedeza japonica, 12^: 59 — thunbergii, 59 Lettuce, wild, 1^: 20 Leucothoe axillaris, 93-96, Plate V, opp. p. 97 and L. fontanesiana, differ- ences between, 97 — catesbaei, 11: 8; H: 14; 14: 24; 16: 72; 17: 72-73;^: 93,95,96 — editorum, 68; 95 — fontanesiana, Plate IV, Plate V, 93-99 ‘Angusta’, 90 ‘Angustata’, 99 cultivars, 99 ‘Folia Multicolor’, 99 ‘Girard’s Rainbow’, 97, 99 --‘Nana’, 99;^: 12 ‘Rainbow’, 99 -- ‘Rollissonii’,^: 99 — - ‘Trivar’, 97, 99 Libocedrus decurrens, 71 Ligustrum, 25: 20 — amurense, 21, 26 -ibolium, y: 48; 17: 21, 26 -ibota, 17: 21, 29 — obtusifolium, 12: 48 regelianum, 48; 17^: 21, 26 — ovalifolium, 17: 21, 26 marginatum, 14: 16 variegatum, 14: 16 — pests, 19^: 4, 8 — sinense, 17^: 21, 27 — vicaryi, 8: 52; H: 16; 1^: 44; ITj 21,26 “ — vulgare, 'H: 21, 26 --‘Lodense’, 17:21,26 pyramidale, 52 Lilac, 6: 3, 10, 12 — and privet incompatibility depic- ted by overgrowth of the scion, 19: Plate V, 41 46 INDEX TO VOLUMES 1-29 Lilac Booklet from Russia, 31-35 — borer, 3, 7, 9 -, Chines^ 8: 22; 22; 2 — collection, 16 — , Common, 1^: 20; 17: 22 -, Cutleaf, 17T22 — , Hungarian, 1^: 22 — insects and diseases, 2, 3, 4, 9 -, late, Plate IV, 19 — path at the Arnold Arboretum, _5 : Plate VI, 35 in color, 9: 14, 16 — , Persian, 8: 22 — registrations, 13, 14 — , sequence of bloom, 1^: 18 — scion own-root development in one year, 19^: Plate IV, 39 — after two years, 19: Plate VI, 43 — Sunday, 1: 40 , Open House, 16: 28 — , thirty-five-year-old own-root, maintained in condition of self- renewal by systematic pruning, 19: Plate III, 37 — time, 8: 21-24 — varieties, 80 Lilacs, 3: 23;4: 23; 9: 13-16; 14:10 — , best hybrid, listed in their respec- tive groups of popularity, 22 “Lilacs for America,” 2: 33;^: 17; 77 , the one hundred “best”, 33-35 — , good early hybrids, 1^: 22 — from Russia, booklet, 19: 31-35 — , graft blight, 1^: 57 -, grafting, 19: 44, 45 — , hardwood cuttings, 19: 42 — in their order of bloom, 1^: 17-23 — , late hybrids, 23 — , layers and division, 19: 42, 44 — , list of recommended, 9: 14, 15 — , midseason varieties, ]Z: 22 — , of New England 1^: 23-30 — , one hundred “best”, 2: 33-35 — , planting, 38, 40 Lilacs, propagation and care, 19: 36-45 ~ — , rootstocks for, 10: 57-60 — , seed, 19j. 44 — , softwood cuttings, 19: 40, 42 Lilies in their order of bloom, 24: 89-95 “■ Lilium, International Registration Authority, 87 — philadelphicum, 1^: 20 — superbum, 1^: Plate IV, 20, 21 Lily, Chinese-lantern, 76 -, Wood, 18: 20 ■“ Lily-of-the-valley, 22: 54 Lime sulphur, Ih 84 Limonium sp., 1^: 80 Linaria vulgaris, 1^: 18 Lindane, 1^: 84 Linden, 69-76 -, Big-leaf, 72 — , Crimean, 70 — , European, Littleleaf, 17: 22; 22: 70 — , Mongolian, 22: 72 — , Pendant Silver, 72 -, Silver, 22:12 ~~ Lindera benzoin, fruiting, 10: 83 Lipp, Lewis F., 12^. 46 , Effect of Light on Seed Germination, The, y.: 40 , New Methods in Plant Prop- agation, H: 61-67 , Note on Propagating Unit, U: 20 Liquidambar, y.: Plate VII, 59-66 — formosana, 21: 61 , ‘Afterglow’, y.: 62 — orientalis, 21: 61, 62 — styraciflua, 14: 52; 1^: 76; 1^: 72; n : Plate VII, Plate VIII, 59-61, 63, 65, 66 aurea, 14: 16; y. : 61 ‘Bur^ndy’, 4 ‘Festival’, 4 — - ‘Gum Ball’, 4 --‘Palo Alto’, y: 61;^: 4 f. pendula, y.: 61 47 ARNOLDIA Liquidambar styraciflua, propagation of, n: 66 f. rotundiloba, 62 f. suberosa, 61 Liriodendron chinense, 16: 23 — tulipifera, 23: Plate XII, 125 contorta, 1^: 24 crispa, 16: 24 fastigiatum, 9: 2 variegata, M: 18 Liriope spicata, 14: 24 Live-for-ever, 22: 54 Locust borer, 19: 6, 9 — fruits, 74 — twig borer, 5, 9 Lolium perenne, 50 Long, William P., 7: 7, 8 Longevity of ornamental woody plant seeds, 13:55 Seed in Storage, 13: 56 Lonicera alpigena nana, 22: Plate XXII, 59, 65 ^ — X amoena, 30, 32 --alba, 16: 44; 22: 59 — X amoena ‘Arnoldiana’, 8: 54; 11: 10; 32; U: Plate XXi; 60, 6^ — X amoena rosea, 32 — ‘Arnold Red’, Plate VIII, 29, 31 — X bella, 11: 10 atrorosea, W: 32 Candida, 60 rosea W:~29; Plate XX, 60, 61 — X brownii, 60 — caprifolium, 60 — chrysantha, 60 — ‘Clavey’s Dwarf, W: 12; 22: Plate XX, 61; Plate XXII, 60, 65 — deflexicalyx, 60 — dioica, 45 — ‘Dropmore’, Plate XXI, 60, 63 — etrusca ‘Superba’, 22: 62 — flava, 2^: 62 — fragantissima, 8: 10; 21, 26; 44; 22: 62 — ‘Goldflame’, 22: 62 Lonicera ‘Hack’s Red’, 32 — X heckrottii, 62 — henryi, 13 : lOTU: 24; 22: 62 — hildebrandtiana, 62 — japonica aureo-reticulata, M: 18; 16: 44;^: 62 --halliana, U: 24;^: 64 repens, 64 — korolkowii, M: 30; 64 aurora, 20: 30, 32; 64 floribunda, H: 10; 17^: 29 — - zabelii, W: 30, 32; 64 — maackii, 64 podocarpa, Plate XX, 61 — maximowiczii, W: 32 sachalinensis, 8: 54; 32 — morrowii, 30; 64 X tatarica, 20: 30 — nitida, 64 — notha, 29 — pileata, 64 — praecox, 8: 10 — praeflorens, 5: 2; 8: 54 — prostrata, 66 — purpusii, y : 44 — pyrenaica, 66 — quinquelocularis translucens, 7: 58 — ‘Redgold’, 66 — sempervirens, 66 sulphurea, 66 ‘Superba’, 66 — ‘Sheridan Red’, 32 — syringa wolfiii, 66 — syringantha, 29; 66 — tatarica, 16: 44, 45; H: 18, 21, 27; 2^: 29; 'U: Plate XX, 61, 66, 67 — - alba, 67 angustifolia, 20: 30 — - ‘Arnold Red’, 15: 50; 1^: 44, 45;^: Plate XX, 61, 67 elegans, 20: 30 grandiflora, 67 leroyana, 30; 67 lutea, 30; 67 ‘Morden Orange’, 67 nana, 22: 67 48 INDEX TO VOLUMES 1-29 Lonicera tatarica parviflora, 22: 67 pulcherrima, 44 punicea,^: 30 rosea, W: 30;^: 67 sibirica, 16: 45 ; 20: 29, 30, 32; 22: 67 X tellmanniana, 67 virginalis, 22: 67 thibetica, 20: 29; 22: 67 — tragophylla, 22: 67 — xylostcum, 20: 12 — yunnanensis, 16: 45; 22: 67 Loniceras for pink to red color, sum- mary,^: 32 Looking towards Beach Plum cultiva- tion,^: 53-64 Loosestrife, Purple,^: 49 — , Spiked, 18: 20 — , Swamp, 18: Plate V, 22 Lord, Frederick P.,^ 28 Lotus, 15: Plate XIII, 73, 74 Louden, J. C., 18: 3 Low temperatures, 13: 38 Lowell Holly Reservation, 14: 68 Lupinus polyphyllus,_5: 84 Lycopodium, 15: 62, 70 — annotinum, 15: 70 — cernuum, 15: 70; 19: 73 — clavatum, 15: 70 — complanatum, 15: 70 — lucidulum, 15: 70 — obscurum, 15: Plate XIV, 70, 77 Lysenko, A. D., 31 Lysimachia nummularia, 1 3 : 16; 14: 24; 18: 18 Lythrum salicaria, 18: Plate V, 20, 22; 22: Plate XIX, 49, 51 Maackia, 21: 20 — amurensis,_7: 36;^: 20 var. buergeri, 21: 20 — chinensis,^: 20 MacDaniels, L. H.,^: 9 , Nut growing in the Northeas- tern States, 1_: 45-64; 12: 21- 40 McKelvey, Mrs. Susan Delano, 16: 28 Madura pomifera, 17: 21, 27 Macoun, W. T.,^ 30 Madake, 38 Madworts, Ornamental and the Cor- rect Name of the Golden tuft Allys- sum,^: 33-48 Magnolia, 4: 21; 15: 68 — acuminata; 8: 21; 20: 17, 18, 20 -buds, 20: Plate V, 21 — conspicua, 20: 20 — cordata, 2: 22, 24; 20: 17, 19 — cylindrica, 20: 27 — denudata,!: 25; 12: Plate XII, 11, 47; 20: 18, 22 — , evergreen, 16: 62 — flowers, 17: Plate V, 15; Plate VII, 25 — fraseri, 20: 18, 20 — grandiflora, 15: 68; 16: 62; 19: 64, 67 X virginiana, 20: 28 — , International Registration Au- thority 23: 87 — X kewensis, 20: 28 — kobus, 1: 25; 9: 11; 12: Plate XII, 45, 47; 20: 18, 20, 22, 27 — - borealis,_8: 54;_9: 2; 20: 27 ‘Nana Compacta’, 20: 28 — liliflora, 20: 20, 22, 27 gracilis, 20: 27 nigra, 20: 17, 18, 20 — X loebneri,^: 11, 12; 20: 18, 27 — - ‘Merrill’, 12: Plate XII, 45, 47; 15: Plate II, 8, 14; 16: Plate XI, 39 — ‘Lombardy Rose’, 20: 24 — macrophylla. 20: 18, 20 — obovata, 20: Plate VI, 17, 18, 22, 23,28 — officinalis, 20: 18, 27 — - biloba, 20: 27 — parviflora, 20: 22 — proctoriana, 12: Plate XII, 47; 20: 18, 27 — salicifolia, 12: Plate XII, 47; 18, 22 — sieboldii, 20: 18, 22 49 ARNOLDIA Magnolia slavinii ‘Slavin’s Snowy’, 27 — X soulangiana, 20: 17, 18, 22, 27 ‘Alba’,^: 22 ‘Alba Superba’, 20: 22 ‘Alexandrina’, 2^: 22 ‘Amabilia’,^: 27 ‘Andre Le Roy’, 2Q: 22 ‘Brozzoni’, 20: 24, 28 ‘Burgundy’ 22 ‘Candolleana’ 20: 27; 21: 44 ‘George Henry Kern’, W: 27 ‘Grace McDade’, 20: 24 ‘Lennei’, 20: 18, 24 ‘Lennei Alba’, 20: 28 ‘Lombardy Rose’, 20: 24 ‘Norbertiana’, 20: 28 ‘Purpurea’, 20: 28 ‘Rubra’, 24 ‘Rustica’, 24, 28 ‘Rustica Rubra’, 24 ‘San Jose’, 20: 24 ‘Speciosa’, 24 ‘Spectabilis’, 24, 28 ‘Triumphant’, 20: 28 ‘Verbanica’, W: 24 — species, 14: 52 , fifteen different leaves, 20: Plate IV, 19 — sprengeri diva, W: 17 — Stellata,_5: 2; 7: 25; 8: 10; 2: H; 11: 10; 12: Plate XII, 45, 47; 15: 8; 16: 45; 20: 17, 18, 20, 22, 24 X kobus, j^: 45 ‘Red’, 20: 26 rosea, _20_: 26 rubra, 20: 26 -- ‘Waterlily’,^: 26 — X thompsoniana,_^: 18, 26 — tripetala, 20: 18, 22, 28 variegata, 20: 28 — virginiana, 12: 11; 20: 17, 18, 26 australis, 28 — X watsonii, 20: 18, 27 — wilsonii, 20: 18, 27 taliensis, 2^: 28 Magnolias, 12: Plate XII, 45, 47; 14: 10 Magnolias Hardy in the Arnold Ar- boretum, 17-28 Mahoberberis aquicandidula, 17: 72, 73; 1^: Plate II, 11 — aquisargentii, 17: Plate XIV, 63, 72, 73; 18: Plate II, 10, 11 — hybrids, two new, 18: 9-12 — miethkeana, 17; 73; 18: 12 — neuberti, 1^: 10 Mahonia aquifolium, 11: 10; 17: 73; 18: 9; 21: 44 ‘Compactum’, Plate III, 12, 15 — repens, 17: 73 Maidenhair Tree, 8: 1 Maiden ’s-tears, 18: 18 Maintenance force, Arnold Arbo- retum, 6: 2 Marjoram, 22: 53 Malachodendron, 17: 10 Maleic hydrazide, 10: 33-38 , bibliography, 10: 38 , effect of, on treated cuttings, 10: Plate IX, 35 Mailing rootstocks, 10: 74 Malus arnoldiana, 14: 52; 15: 6 — ‘Arrow’, 16: 29 — atrosanguinea, 14: 52; 1^: 7 — baccata 16: 29 columnaris, _8 : 54 mandshurica,_6: 12, _7: 26 — - ‘Barbara Ann’, 15; 12 ‘Snowdrift’, 23: 90 — , best for flower, 10: 26, 27 — , form, 10: 28 - fruit, IP: 27, 28 — X ‘Blanche Ames’, 15: 6 — ‘Bob White’, 9: 2; 1^: 32 — collection, 18: 15, 16 — , colored foliage, 10: 28 — ‘Coralburst’, W: 4 — ‘Crimson Brilliant’, 14: 18 — ‘Dainty’, 2S: 4-5 — dawsoniana, 9: 2; 16: 29 — ‘Dorotiiea’, 8: Plate XVII, 54-56; 12: 11; 14: 52; 15: 8; 1^ Plate III, 11, 29; 1^: 16 — ‘Dorothy Rowe’, 26: 15 50 INDEX TO VOLUMES 1-29 Malus, dual purpose, 10: 28 — ‘EleyM4: 52 — ‘Ellen Gerhart’, 29: 5 — florentina, 10: 74 — floribunda 14: 52; 16: 29 atropurpurea, 14: 18 — ‘Garry’, 1_3: 116 — ‘Gloriosa’, j4: 2 — ‘Guiding Star’, 26: 16 — halliana parkmannii,_3: 23 spontanea,^: Plate III, 10 — ‘Henrietta Crosby’, JJ: 6 — X ‘Henry F. duPont’, 15: 6; 19: 16 — ‘Henry Kohankie’, 2^: 16 — ‘Hopa’, 14: 52 — hupehensis 7: 9; 26; 1^: 11; 14: 52 — hybrid, 1^: Plate I, 5 — ‘Indian Magic’, 29: 5 — , International Registration Au- thority, 23: 87 — ‘ Katherine ’,_9: 2; 8; 19^: Plate II, 19 — ‘Makamik’, lj6: 29 — X ‘Mary Potter’, 15: 6 — moerlandsi, 14: 18 — ‘Oakes Rosy Bloom’, 14: 13 — ‘Ormiston Roy’, 1^: 29 — parthenogenetic, 26 — pests, 2, 3, 5, 8 — ‘Pink Cascade,’ 5, 6 — ‘Prince Georges’, 8: 56; 9: 4 — ‘Profusion’, 14: 18 — pumila niedzwetskyana, 9: Plate VI, 37; 14: 18; 15: 6 — purpurea aldenhamensis, 12: 13; H: 52; 16: 29 “ eleyi, 14: 18; 6 lemoinei, 9:4;^: 13; M: 18, 52;^: 29“ — ‘Radiant’, 90 — ‘Red Jade’, 16: 29 — ‘Red River’, 16: 24 - ‘Red Silver’, 9: 4; 1^: 16 — ‘Redford’, 14: 18 — robusta, 1^: 26; 14: 54 Malus sargenti, j6: 12; H: 11; 15: 7; 19: 18; 27: Plate XXII, 27, 77 as rootstock, 10: 74 rosea, 15 : 7 — scheideckeri, 14: 54 — ‘Selkirk’, 18 — sieboldii, 16: 29 --‘Fuji’, 5 — sikkimensis, 7: 16; 10: 26, 74 — ‘Silver Moon’, 2S: 6 — spectabilis riversi, 1^: 1 — ‘Spring Snow’, 26: 16 — ‘Strathmoore’, 14: 18 — ‘Timiskaming’, 14: 18 — toringoides,^: 9; 10: 26; 12: 13; 14: 54 macrocarpa, 11: 72 — tschonoski, 10: 26 — ‘Vanguard’, 23: 90 -‘White Angel’, 90 -‘White Candle’, 29: 6 — zumi calocarpa, 3.: 23 ; 14: 54; 16: 32 Manchu Cherry, 24: 81 Mangelsdorf, Paul C., 7: 14 Manitoba Hardy Plant Nursery, 7: 34; 8: 29 — , Northern, Fifty Years of Garden- ing in, 7_: 29-40 Manzanita, 15: 83 Map, Case Estates, 15: 24; 18: Plate IX, 43;^: Plate III, 8 — , climatic, northeastern states, V. Plate III, 47; Plate IV, 49; Plate V, 5 1 ; 12: Plate VII, 23 ; Plate VIII, 25; Plate IX, 27 — , ground covers and demonstration plot at Case Estates, Weston, 14 : Plate V, 23 — , roads between Arnold Arboretum and Case Estates, 18: Plate X, 44 Maple, 15: 11 — , Amur, 17: 20 — , Asiatic, propagation, 17: 45-56 — , ‘Crimson King’, 15: 11 — hedge, 17: 20 — , Norway, 14: Plate VIII, 43; 17^: 20 51 ARNOLDIA Maple, Paper Bark, 1_8: Plate XV, 61 — , Red, columnar form of, 6: 10; 2, 34 — , Schwedler’s, 18 — , Sentry, 6: 10 Maps, hardiness, Arnold Arboretum, 53-54 — , — , Canadian, 55 — , — , relationship between Arnold Arboretum and USDA maps, 2J: 55 -, -, USDA^: 54 — , — , for the United States, 3:53 — , plant hardiness zone, 53-56 Marguerite, Wild, 52 Marker in burying ground, Peters Hill, y : Plate IX, 79 Marsh, Dorothy, Mrs., \7_: 2 Marshall, Humphry, 17: 6, 8 Marshall, Moses, \lj. 6, 8 Marx, Victor F., appointed Librar- ian, 71 Mason, C. Russell, Build Bird Popu- lation with Food Plants, 5: 5-20 Massachusetts Arborists Association, 8: 19, 20 — , Department of Public Health,^: 14 — , gardens, shrubs, 1-20 — , trees for, 12: 1-20 — , vines and ground covers, for, IZ: 1-19 — , University of, J,: 21 Mather, Increase, 78 Matthiola incana,_5: 84 — , International Registration Au- thority, 87 Meadow, The, 18: 17-24 Meadow Foxtail, 22: 50 — road in the Arnold Arboretum, 7: Plate VIII, 59 , new plantings along, 9: 6, 7 — Rue, 1^: 20 Mealybugs, 4, 7, 8, 9 Medicinal plant garden of the Massa- chusetts College of Pharmacy,^: 38-40 “ “Meet the Staff,” Lecture Series, IS: 132 Menispermum canadense, Plate XXI, 68, 69 Meratia praecox, 2r. 8 Mercer, Martha Dana, 34 Mercer, Mrs. William R., 34 Merrill, E. D., 1: 40, 44; 2: 50; 4: 28; 5: 64; 6: 4, 60; 7: 4; 12r. 45 , Emergency Food Manuals, 4: 29-36 , Metasequoia, Another “Liv- ing Fossil,” 8: 1-8 , A Simple Change in Name, 1: 1-2 Mertens and Nussbaumer, 37 Metake, 6:38 Metal display labels, U: 12 Metasequoia after Twenty Years in Cultivation, 28: 113-123 — , Another “Living Fossil,” 1-8 — , Brought up to Date, 11: 25-28 — , flowering and fruiting character- istics, Plate XXXV, 114-116 — glyptostroboides, H: Plate VIII, 27; Plate XVI, 25, 72, 73 — -, ‘National’ Plate IX, 117, 118 , growth rates, Plate XXXVI, Plate XXXVII, 117-119 — , map of area where found, 8: Fig. 3,7 — pests, IV: 6, 8 — , possible use for paper pulp and lumber, 120 — , showing botanical characteristics of, 8: Plate II, 5 — , some of the taller in cultivation as of January 1, 1968, 120- 122 — , type of tree of, 8^: Plate I, 3 Metcalf, Franklin P., Flowers of the Chinese New Year, 2:1-8 Methods of producing new orna- mental plants, 11 sowing (seeds), 39, 40 Metrosideros excelsa, 19:77 52 INDEX TO VOLUMES 1-29 Michaux, Andre, 13, 14 Michelia alba, 2: 8 — champaca, 2: 8 Michurin, I. V., 19: 31-35 Miethke, Henry O., 18: 12 Mild winter temperatures, 13 : 37 Milkweed, 1^: 74, 18: 20 Ming Trees, 83 Minnesota, University of, 7:33 Mistletoe, 15: 61, 71, 16: 70, 19^. 69,72 — , European, Plate XXI, 69-72 Mite, 19: 7, 8, 9 Miticide, H: 84 Mockernut, 1: 54 Mockorange, 4: 24; 16: 46 , ‘Bouquet Blanc’, 1^: Plate XII, 43,46 “ , Lemoine, upright, 17:21 , Sweet, 21 ; Virginal, 16: 46 Mock-Oranges, The, 29-36 Moline Elm, The, U: Plate XX, 88 Monetary losses, 55 Moneywort, 1^: 18 Monograph of Azaleas, 2: 51 Monstera deliciosa, 4: Plate IV, 3 3 Moraine Locust, H: 71 More, Robert E., Glenmore Arbore- tum at Buffalo Creek, Colorado, The, 5: 65-76 More Tree Trunks, 5-12 Morning glory, wild, 20 Morrill Act of Congress, 7:13 Morrill, Justin Smith, homestead and plantings today, Plate XIV, Plate XV, Plate XVI, Plate XVII, 42-47, 49 , plants listed by, on the plan of his estate grounds, 46- 52 , Some Horticultural Activities of, 41-52 Morriss, Edward, 80 Mortier, P., 2: 54 Morton Arboretum, 2:50 , hedge collection, 5: Plate IX, 43 Morton Arboretum, new building dedicated at, 2:50 , Thornhill Building, 5 : Plate VIII, 43 Morton, Joy, 2: 50 Morus species, fruiting, I^: 83 Moscow, main Botanical Garden, collections, ^ : 1 — , , list of plants introduced from the Japanese-Chinese Subregion, ^ : 8-14 Moss, Club, 70 Mother-of-thyme, 75 Mountain Ash, 5: Plate III, 13; 16: 48, 49 “ “ Mountain Ashes, The, 61-68 Mountain-laurel, 14: 10; 71; 16: 62; 17: 70, 71 ~ Mountain Sorrel, 4: Plate III, 31 Mulch, Black Polyethylene as a, 13-16 —, Cocoa-shell, IT^: 33-36 — , Spent Hops, 7: 69-72 Mullein, Giant, 54 Munsell Book of Color, 7: 44 — Color System, 17: 58 Muscari racemosa, 84 Myrica pensylvanica, 15:72 Myrtle, 17: 76 Name, Jamine, The, 71-74 — , publishing the horticultural, 3: 12 — , rules for selecting new horticul- tural variety, 3:11 — , selecting the new, 3: 10 Names, legitimate and illegitimate, n: 5, 6 Naming of Horticultural Varieties, The, 3: 9-13 Nandina domestica, 19: 73, 74 Nanking Cherry, M: 81 — , National Central University at, 8: 4 Narcissus, International Registration Authority, 87 — spp., 75 — tazetta, 2: 2 53 ARNOLDIA Narihiradake, 6: 38 Narrow-leaved Evergreens, Winter Foliage Color of, h 17-20 National Academy of Sciences, 1: 40 National Registration Authority, ^ : ^,4; 23: 87 Neanthe bella, 66 Nelson, Ralph M., 2: 26 Nelumbium nelumbo, 1^: 74 Nemopanthus mucronata, fruiting, 1^: 83 Nepeta hederacea, 1^: 24 Nerine, International Registration Authority, 87 Nerium oleander, 26: 74 Nettle fruits, Spanish, IS: 22 — , stinging, I^: 18 Nevling, Lorin I., Climbing Hydran- geas and Their Relatives, 17-39 — — — , Some Ways Plants Climb, 28: 53-66 New and Rare Ornamental Woody Plants Distributed by the Arnold Arboretum,^: 45-64, 16: 33-51 New England Council, 17 — Ground Cover Display Plots, The, U: 21-24 — Hedge Demonstration Plot, The, 2A: Plate IX, 99; 97-100 — Horticultural Color Chart, 17: Plate XIII, 57-60 — methods in plant propagation, H: 61-67 — plants, 15: 50-52 , recently registered, 23: 114 , registered, 25: 111-118 , sources for, 9: 1-4 , worthy of trial, 9-16 , propagating unit, 13: 62 , spray materials, 13: 69 — York Botanical Garden, 21: 37 Newton, Howard C., 2: 37 Nickerson, Dorothy, Miss, 58 Ninebark, 17: 21 — , Illinois, dwarf, 17: 21 Nomenclature for Cultivated Plants, New International Code, 18: 65-68 Norman Jay Colman Award, 10: 71 Noronhia, 22 Note on Ligustrum ibolium. A, 1 48 ! — on propagating unit, 14: 20 ; Notes on Making an Herbarium, 69-111 I Nurseries listing rare woody plants | in 1941 catalogues, H 7, 22 i — offering new plants. List of, 9: 2 Nursery Code, Key to, 19: 30 — sources for nut trees, 2:9-12 ; Nut Growing in the Northeastern j States, 1: 45-64; 2: 9; 12: 21-40 Northeastern States, Cultural Practices, j_: 58-61 ; 12: 34-36 i , fertilizers, 1.: 61, Ur. 36-37 i! , harvesting, 1: 63- 64; 12: 39 , insect and disease troubles, 1: 61-62; 12: \ 37-38 " , species and varieties, 1: 50-58, 12: 26-34 , summary, 1: 64, 12: 39 “ “ Nut trees, northern nurseries special- izing in, 10 , nursery sources for, 2: 9-12 , varieties and their sources, 2: 10 !, Nuts, Hazel, 16: 72 i Nyssa sylvatica, M: 54, 16: 72, 21: * 21 “ ' Oak, Black, U: 86 — , California Black, 22: 82 — , — Live, U: 78 — , Canary, U: 80 j — , Canyon Live, U: 80 — , Chestnut, U: 84 j -, Cork, 19: 72, U: Plate XXVIII, * 83, 86 ^ — , Engler’s, U: 80 -, English, U: Plate VIII, 31, | 84 — , English pyramidal, 17: 22 i 54 INDEX TO VOLUMES 1-29 Oak, Glandbearing, 82 — , Golden English, 86 -, Holly, 82 -, Holm, 82 — , Interior Live, 86 — , Laurel, 82 — , Lebanon, 82 — , Live, 86 -, Oriental, Plate XXVIII, 83, 86 -, Pin, 15: 79,17: 22, 'U: 84 -, Red, 80 — , Sawtooth, 22: 78 — , Scarlet, 80 -, Shingle, 22;^: 82 — , Shumard, 86 — , Southern Red, 80 — , Spanish, 80 — , Swamp White, 78 — , Turkey, 80 -, Water, 84 -, White, Plate XXVII, 78, 81 -, Willow, 'n: 84 Oaks, The, 77-87 Oberea tripunctata, 56 Oberly Memorial Prize, 1: 40 Oberthiir et Dauthenay, Repertoire de Couleurs, 7: 45 Oenothera deltoides, 15: 79 — perennis, 20 Okra, 15 : Plate XIV, 75,77 Olea, 22 — dioica, 1^: 73 — europaea, 72 Olive Family in Cultivation, The, 25: 13-27 One Hundred “Best” Lilacs, 2: 33- 35 Oosting, Henry J., 2: 25 Onen House at Case Estates, 15: 23; 16: 15, 17: 36; 22: 8 Arnold Arboretum, L4: 64; 15: 84; 16: 28, 60, 72; 17: 36; L8: 56; 22: 8 Orange, Otaheite, 15:81 Orchard Grass, 50 Orchidaceae, International Registra- tion Authority, 23: 8 Order of bloom, LO: 41-56 of Azaleas, 1^: 29 Spiraeas, 21: 52 Oriental Cherries, _4^ 22; 10: 17-24; 14: 10; 15: 14 — Witch-hazels, 14: 10 Ornamental Fruits, 20: 52 — Madworts (Alyssum) and The Cor- rect Name of the Golden tuft Alys- sum, 33-48 — Planting, town dump, Reading, Mass., Plate X, 47 — , plants, fruiting habits, 1^: 81-85 — trees, suggested for various pur- poses, List of, 7: 24 Ornithogalum arabicum, 15: 83 — lacteum, 15: 83 — officinale, 54 — thyrsoides, 15: 83 — umbellatum, 75 Osage-orange, 17: 21 Osman thus, 25: 23 X Osmarea, 23 Ostrya virginiana, Plate XVI, 129 Ostwald’s Colour System, 7: 45 Ottawa Experiment Station, 8: 29 Our Disappearing Opportunities, 60 ~ Oxydendrum arboreum, 12^: Plate V, 13, 14; 14: 54 Oxyria digyna, 4: Plate III, 31 Oystershell scale, 19: 2, 7, 8, 9 Pachistima canbyi, H: Plate V, 15, 16; 14: 24, 17: 73 Pachistima myrsinites, 17: 73 — pests, 19: 5, 8 Pachsandra pests, 19: 5, 8 — procumbens, 6 — terminalis, 13: 16; 14: 24; 17: 73, 74;^: 6 ~ “ Packing materials prohibited, 13: 52 Paeonia, see also Peony — albiflora, 6: 8 — delaveyi, 6: 7;^: 25 — lutea, 6: 7; 25 ludlowii, 25 — moutan, 2: 4 55 ARNOLDIA Paeonia suffruticosa, 2: 1, 4;^: 5, 6; Plate V, 25, 27 ‘Imachowkow’, Plate VI, 29 ‘Kamata Fuji’, Plate VI, 29 Palm, Canary Island date, 79 - drift, 1_5: 79 — , embryo, 15: 79 — , emerald leaves, 66 — flowers, 79 Palmer, Ernest J., 5: 76 , Food Plants in the Arnold Arboretum, 4: 1-7 Parathion, 13 : 84 Paris Museum, 2:16 Park Arboretum, The, _5: 25-48 , cost, 37 , definition, 5: 26 , educational costs, 42 , equipment, 39 , examples, J.: 42 , functions, 5: 27 , how to plant, 5:33 , labeling and mapping, 5: 40 , labor, 5: 38 , map, 5 : Plate X, 45 , methods of establishing, _5 : 28 , number of plants, 36 , planting, 5:38 , propagation, _5: 39 , selection of the site, _5 : 3 1 , space, amount required, 5: 36 , ways of initiating interest and action,^: 32 , what to plant, _5: 34 , who is to plan, 3 1 Park, Thomas, 19: 57 Parker, D. E., 7: 21 Parkman, Francis,^: 19 Parrotia persica,^: 4; 12: 13; 14: 54; 19: 70; y: 123 Parsnip, 22: 55 Parthenocissus quinquefolia, 1^: 24 Past Year at the Arnold Arboretum, 7_: 1-8 Paste the Poison Ivy, 1^: 5-8 Pastinaca sativa, 22: 55 Patented plants and their names, 21: 1 Pauley, Scott S., Forest-Tree Breed- ing Work of the Cabot Foundation, 10: 1-8 Paulownia tomentosa, Plate V, 8 Pavetta bowkeri, 19: 76 Pea-tree, Russian, 1_7: 20 — , Siberian Vh 20 Peach, 2: 4 — tree borer, control of, 1^: 8 Peaches, dwarfing understock, 76 Pearlbush,^: 10;^: 22 “Pearlon,” 11: 50 Pecan, J.: 55;^: 11 — and Horticultural varieties, 12: 31 Peony, see also Paeonia — , ‘Alice Harding’, 6: 7 -, ‘Argosy’, 6: 7 — , ‘Banquet’, 6: 7 — , ‘Black Pirate’, 6: 7 — , color range of, 6: 6 — , fertilization of, 6: 7 — , ‘Festival’, 7 — , ‘Flambeau’, 6: 7 — , hardiness of, 6: 7 — , history of, 6. 6 — , hybrids, 1 — , ‘La Lorraine’,^: 7 — , method of purchasing, 6: 6, 7 — , Moutan, 6: 7 — , planting of, (6: 6 — , propagation of, 6: 6 — , ‘Roman Gold’, 6: 7 — , ‘Silver Sails’, 1 — , Society, American, 6: 8 — , ‘Souvenir de Maxine Cornu’, 7 — , ‘Surprise’, 6: 7 — , Tree,^: 4; 6: 5-8 Pepper berries, 15: 75 — , cherry, 81 — , Christmas, 81 — , cone, IJ: 81 Pepper-grass, 15: 75 Pepper-tree, 15: Plate XIII, 73, 75 Periwinkle, 76 56 INDEX TO VOLUMES 1-29 Permit for plant introduction, 13 : 52 Persian Walnut, 52, 54;^: 12 Persimmons, _2: 12 —, American,^: 12 —, Oriental, 12 Pests frequently destructive in the Arnold Arboretum, 13 : 78, 79; 1^: 7-9 — , serious, J.: 39, 40 —, vegetable,^: 3 Peters Hill, 9: 37-43 , proposed review of, 46 , general plan of,^: 40, 41 Phalaris arundinacea picta, 14: 24 Phellodendron amurense, 1^: Plate II, 7,15; U: 54;^: 45;^: 123; 25: Plate IX, 43 — species, fruiting, 1^: 83 Phenological groups and winter hardiness, species from Soviet Middle Asia, 5, 6 , distribution of species from Japanese-Chinese Subregion in, 27: 3-5 Philadelphus, 1 ^: 10 — ‘Albatre’, 25: Plate VII, 32, 33 — ‘Argentine’, 16 : 46;^: 32 — ‘Atlas’, 9: 4 — ‘Audrey’, ^3: 118 — ‘Aureus’, 32 — ‘Avalanche’, 25 : Plate VII, 32, 33 — ‘Banniere’, 34 -‘Belle Etoile’,9: 4;^: 34 — ‘Boule d’Argent’, 34 — ‘Bouquet Blanc’, 16 : Plate XII, 43,46;^: Plate VIII, 34, 35 — ‘Burford’, 25: 34 — ‘Cole’s Glorious’, 34 — ‘Conquete’, 34 — coronarius, 17: 21, 26; 31 aureus, 14 : 18 pumilus, 17: 29 — ‘Erectus’, 25 : 34 — ‘Fleur de Neige’, 34 — ‘Frosty Morn’, 12;^: 34 — ‘Girandole’, 25: 36 Philadelphus ‘Glacier’, 25: Plate VIII, 35, 36 “ — grandiflorus, 56 — incanus, 25: 31 — ‘Innocence’, 25: 36 — inodorus,^: 56, 58;^: 32 — , International Registration Au- thority,^: 87 — laxus, 25: 32 — lemoinei ‘Avalanche’, 11 ‘Belle Etoile’,^: Plate I, 3 erectus, 17 : 21, 27 — ‘Marjorie’, 23: 118 — ‘Miniature Snowflake’, 27: 64 — ‘Minnesota Snowflake’, 25: 36 — ‘Mont Blanc’, 36 — ‘Norma’, 3‘6" — ‘Perle Blanche’, 25: 36 — purpurascens, 32 — schrenkii jackii,^: 32 — X splendens, 8: 58;^: 4; H: 11; 16: Plate XII, 43, 46;^: 32 — ‘Virginal’, 25: 36 — virginalis, H: Plate XI, 39; 16: 46 Philodendron spp., 75 Phillyrea, 25: 23 Phlox subulata ‘Emerald Cushion’, 14: 24 Phoenix canariensis 1_5: 79; 1^: 67 — dactylifera, 74, 79 Phoradendron flavescens, 1_5 : 7 1 ; 19: 69;^: Plate XXI, 69, 75 var. macrophyllum, 19:63 Photinia arbutifolia, 19 : 63, 64 Photographs of Bonzai Available on Loan, An Exhibition of, 28 Phyllostachys, 30, 32 — aurea,^: Plate III, V, 33, 37, 42 — aureosulcata, ^ Plate VI, 39, 41 — bambusoides,^: 38 castiloni,^: 42 — , hardy bamboos of the genus, 6: 40 ~ — nigra forma henonis, 6 : 40 muchisasa, 6:41 — sulphurea, 6: 42 — viridi-glaucescens, ^ 40 57 ARNOLDIA Physocarpus intermedius parvifolius, 17: 21, 27 — opulifolius, 17: 18, 21, 27 luteus, 18 Phytolacca americana, 4: 4; Plate XX, 67, 68, 75 Picconia, 2^ : 24 Picea, 58; 1^: 2 Picea Abies, _3 : Fig. 4(b), 37, 60, 61, 64; 16: 72; 17: 24, 26; Plate XI, 65, 68 argenteo-spica, 14: IS ‘Barryi’, 28: 22 ‘Bennett’s Miniature’, Plate XX, 63, 64 ‘Compacta’, 28: 22 ‘Conica’, 22 ‘Crippsii’,_^: 22 ‘Gregoryana’, 2^: 22 ‘Highlandia’, 22 ‘Maxwellii’, witches’-brooms, 46 ‘Mucronata’, 22 ‘Ohlendorffii’, 22 — - ‘Pumila’, 28: 22 ‘Pygmaea’, 22 ‘Pyramidalis Gracilis’, 22 ‘Remontii’, 23 — - ‘Repens’, ^ Plate VIII, 21, 23 ‘Sherwood Gem’, 28: 23 ‘Tabulaeformis’, witches’- brooms, 46 vars.,^: 64 witches’-brooms, ^ : 44, 46 — asperata, 61; 15; 14: 54 — bicolor, _3: 63 reflexa,^: 36 — breweriana, 62, 63 — engelmanni, Fig. 5, 61, 62 — glauca, Fig. 6, Fig. 7, 61-64; 14: 54; 15: 63; 18: Plate I, 2, 5; 19 : 63 albertiana, 63 — - ‘Conica’, 1 60; 18: Plate I, 5; 28: 23 witches’-brooms, 27: 48 densata, 3: 63 Picea glauca ‘Little Globe’, 6 — glehni, h 63 ; 9: 42 — heterolepis, ^ 6 — jezoensis,^: 62 — koyamai, 1 64 — mariana,! 60, 62; 63; 19: 62 doumetii, 1 60 — obovata, 3j Fig. 7, 64 — omorika, Fig. 6, 62; 12: 15; 14: 54; 17: 24, 26 -- ‘Nana’, 28: 23 — orientalis, 1 63; 24, 26 aurea, h 64 aureo-spicata, ]A: 18 -- ‘Nana’,^: 23 — pests, 1^: 2, 5, 8 — polita,!: Fig. 4 (a), 60, 64 — pungens, 1 Fig. 3, 60, 61; 1 Plate XIII, 69 argentea, 1: 60 bakeri, 1 62 -- glauca, i: 60; IZ: 24, 26 ‘Glauca Procumbens’, 28: 23 --‘Globosa’,^: 23 ~ ‘Hunnewelliana’, 23 kosteriana, 1 62 moerheimii, h ‘Pendens’, 28: 23 vars., 14: 18 — purpurea,! 62; 7: 33; 16: 24 -rubens, 3: 64; 9: 42; 15: 75 witches’-brooms, 27 : 48 — schrenkiana, 1 63 — sitchensis, h 62, 63; 19: 69 — smithiana, _3 : 63 — tonaiensis, 24 — wilsonii, 161 Pieris floribunda, H: 11; l^: 74; 21: 48 ‘Elongata’, Tl: 48 ‘Flame of the Forest’, 21: 50 ‘Forest Flame’, 2A: 50 ‘Grandiflora’, TL 48 ‘Millstream’, 26: 16 — formosa, Tl : 48 ‘Chandler!’, 21: 48 -- ‘Jermyns’, n: 48 58 INDEX TO VOLUMES 1-29 Pieris formosa ‘Wakehurst’, 48, 49 — , International Registration Au- thority, 87 — japonica, 7: 26; 11; 17^: 74; ^1:49 ‘Albo Marginata’, ^ : 49 -- ‘Bonsai’,^: 49 ‘Chandleri’, 21: 49 — - ‘Compact’, ^ : 49 ; ^ : 9 1 ‘Crispa’,^: 49 ‘Dorothy Wyckoff, 21: 49; 23: 91 ‘Elegantissima’, 21: 49 — - ‘Flamingo’, ^1: 49; 91 grandiflora ‘Purity’, 64 ‘Minima’, 49 ‘Nana Compacta’, 50 -- ‘Pink Bud’, 21: 50 ‘Pygmaea’, 21: 50 -- ‘Rosea’, 50 rosea ‘Daisen’, 27: 65 rubra ‘Christmas Cheer’,^: 65 ‘Variegata’, 21: 50 ‘Variegata Nana’, 2A: 50 ‘White Cascade’, 50; 91 --‘White Rim’,^: 50 — - ‘Whitecaps’, 50; 91 X formosa ‘Wakehurst’, 50 — pests, 19: 4, 8 — , Registration Lists of Cultivar Names, 2A: 47-50 Pignut, I^: 54 Pike, Radcliffe, 101 Pileostegia, 24: 17, 53 — , key to the species of, 34 — tomentella, 34 — viburnoides, 34 Pin Oak, Plate II, 4 Pinanona, Plate IV, 33 Pine, 1^: 61, 63 — , Australian, 1^: 72 — bark aphid, 19: 4, 8 — Creek, Natural Prairie in Valley of, 4: Plate VII, 69 — , Jack, witches’-broom seedlings, 27: Plate XVIII, 42, 46, 47 Pine, Lace-bark, IV. 70; 16: 46; 18: Plate XV, 61 -, Long-leaf, 15: 71, 83; 66 — needle scale, 19: 2, 8 -, Mugho, 17: 24, 29 -, Pitch, 15: 75 , witches’-broom, Plate XI, 34, 36 , seedlings, 42, 46 -, Red, 15: 63; 71 , witches’-broom, Plate XI, 34, 36 “ , propagation, 48 — roses, 15: 79 -, Scotch, 15: 71; 17j. 24; 19: 60, 72 — , — , method of growth, 27: Plate X, 34, 35 — , Sugar, 1^: 83 — , — , cones, 76 — , Virginia, witches’-broom seed- lings, Plate XVIII, 46, 47 -, White, 11: Plate XI, 63, 65, 71, 76; 17: 24 — , — , cones, 27: Plate XV, 38-41 — , — , witches’-broom, 27: Plate IX, Plate XII, Plate XIII, Plate XIV, Plate XV, 30, 33, 37-46 , propagation, 27: Plate XIX, 46, 48, 49 , seedlings, 27 : Plate XVI, Plate XVII, 38, 42, 44-46 Pines, Simple Key to,^: 49-56; H: 63-70 “ Pinetum, 12: 73 Pinus, 50 — albicaulis, 5 1 ; IV 64 — aristata, J_: 50; IJ^: 64; Plate III, 12, 13;^: 24 — attenuata, 52; IJ_: 66 — australis, IJ: 71, 83; 19: 66 — ayacahuite, 52 — banksiana, 55; IV 68 witches’-broom seedlings, '2n_ : Plate XVIII, 42, 46, 47 — brutia, 19: 72 59 ARNOLDIA Pinus bungeana, 52; 7^: Plate XI, 66; 11: Plate XV, 66, 67, 70; 14: 54; 16: 46; 18: Plate XV, 61; 23: Plate XI, 123, 124 — canariensis, 1^: 54; 11: 66; 19: 77 — caribaea,!^: 54; H: 68; 19^: 68 — cembra,J^: 51; H: 64 sibirica,!^: 5 1 — cembroides, Jj 54; H: 68 parryana, Jj 52; 11: 66 — clausa, 19: 66 — coulteri,J^: 52, 54; H: 66 — densiflora, 55, 56;^: 42; H: 68 oculus-draconis, _1: 54; 68 — - ‘Pendula’, 28: 24 umbraculifera, 55; H: 68 — echinata, 1^: 54, 56; 11: 68; 19^. 66 — elliotii, 19: 66 — flexilis,!^: 51;^: Plate XIV, 72; 11: 64 — griffithii, 7: 10; U: 64 — halepensis, 19: 72, 74 — jeffreyi, H: Plate X, 33, 66; 1±: Plate II, 5 — koraiensis, _1: 5 1 ; H: 64 — lambertiana, 3: 51; 11: 64; 15: 76, 83 - — — — longifolia, 19: 74 — monticola, Jj 51, 52; H: 64 — mugo, 3: 55; 11: 68 compacta, 55; H: 68 mughus, 17: 24, 26 mugo, 287^4 pumilio,!^: 55; 11: 68; 28: 24 — nigra, 17: 29 austriaca,!^ 55; H: 68 ‘Hornibrookiana’, 27: 46; 24 ~ “ Poiretiana, 1^: 55 — palustris, 3^. 54; IV. 66 — parviflora, 1^: 51; H: 64; 14: 2; 24: Plate XI, 103 glauca, Ij 5 1 ; n : 64 — patula, 19: 74 — pests, 19: 2, 4, 6, 8 — peuce,l_: 51; 11: 64' Pinus pinaster, 3^ 56; H: 68; 19: 74 — pinea, 19: 72; Plate III, 6 — ponderosa, 1^: 52; H: 66; 19: 62; 23: Plate XVII, 130 scopulorum,!^: 54; H: 68 — pumila,!^: 51; y.: 64; 28: 24 — pungens, 3_: 55; 11: 68 — radiata, 3j 52; 11: 66; 19: 76 — resinosa,!^: 55; H: 68; 14: 54; 15: 63, 74 witches’-broom, 27: Plate XI, 34, 36 , propagation, 27: 48 -rigida, 3_: 52; U: 66; y: 75; 21: 67 witches'-broom, 27: Plate XI, 34, 36 , seedlings, 27 : 42, 46 — sabiniana, 3^: 54; 11: 66 -spp. 15: 71,79 — Strobus,y 54; 1; U: 64; 1 ±: 54;15: 63, 71, 76; 17: 24,26 ‘Bennett’s Contorted’, 27: 65 , cones, Plate XV, 41 fastigiata, V 51', y : 64 nana, _3 : 5 1 ; 11: 64 -- ‘Pendula’, 28: 24 -- ‘Pumila’,^: 24 witches’-brooms, 17 : Plate IX, Plate XII, Plate XIII, Plate XIV, Plate XV, 30, 37-46 , propagation, 27: Plate XIX, 46, 48, 49 , seedlings, 27 : Plate XVI, Plate XVII, 38,42,44-46 i — sylvestris, 1: 55; H: 68; 14: 54; 15: 71; y: 24, 26; 19: 60; 23: * 123 aurea, 3:55 ■ ‘Beauvrbnensis’, 27: 46 , method of growth, 27 : Plate X, ^ 34, 35 ~ rigensis, 1: 5 5 watereri,!: 55 — tabulaeformis, 11: 54-56; 1: 10; U : 68 — taeda, 3: 52; 11: 66; 19: 66 60 INDEX TO VOLUMES 1-29 Pinus thunbergii, 55, 56;^: 42; 11: 68; 12: 17; U: 54; 67 — torreyana, 52; H: 64 — virginiana,_3: 55; 68 witches’-broom seedlings, ^7 : Plate XVIII, 46, 47 Pinxter flower, ^11 Pistacia lentiscus, 19: 72 Pittosporum tobira ‘Wheeler’,^: 6 Plane Tree, London, _7: 9; 17: 21 Plant Breeding at the Arnold Arbo- retum,_7: 9-12; 15: 5-12 — collecting in the southeastern United States, 19: 45, 46 — development, control of, 33- 37 — distribution,^: 45-64 — hardiness zone maps,^: 53-56 — life of the Pacific world, 64 — materials, sources of, 16: 18 , woody, Christmas decorations, 16: 61-72 — propagation, new methods of, 13: 61-67 ~ — quarantine laws, 13: 51 — registration, 23: 85-92; 13-16; 29: 1-8 ■“ Planting Junipers, 16: Plate VIII, 25 Planting list, 1956, 16: 17, 18 — vegetables,^: 1-7 Plants, Animals and Man in the Out- er Leeward Island, West Indies, (Book Review) 2^: 46 Plants, artificial, J^: 83 — damaged by snow or low tempera- ture, H: 39 — distributed by the Arnold Arbo- retum,^: 9-12;!^: 33-51 — for Screening Junkyards, Gravel Pits and Dumps, 45-48 — frequently plagued with pests in the Arnold Arboretum, 13: 80 — from England, J,: 44 — from seed, 14: 25-28 — in the meadow, 18: 22, 24 — killed to the ground, 17: 38, 39 Plants, New and Rare, Distributed by the Arnold Arboretum, 16: 33-51 — of Possible Merit?, 2^. 9-16 — partially injured, 17: 39-41 — Sent to Cooperating Nurserymen with Notes Accompanying Them, ^ 46-64 — , Some Comparatively New- Worthy of Trial, 29: 9-16 — used in Williamsburg, Va., prior to 1750, 11: 76-78 — with colorful twigs in early spring, 27: 15, 16 — with green twigs, 18: 60 red twigs or red bark, 18: 58, 60 — , Woody, with Interesting Bark in Winter, 18: 57-64 Plastic films, properties of, 11: 50, 51 “■ — labels, 24: 10 — propagating units, 1^: 66 Platanus acerifolia, 17: 21, 27 — occidentalis,^: 9; 1; 19: 66 — orientalis, 7: 9; 10: 1 — pests, IV: 3, 9 — species,^: 123 Pleioblastus,^: 32 Pleurotus ostreatus, 4: 2 Pliofilm, 11: 49 Plum, Beach, Plate IX, Plate X, 53-64; 1^:46 — , — , ‘Arrowhead’,^: 58 — , — , ‘Eastham’,^: 57 -, -, ‘Hancock’, 9: 56, 67 -, -, ‘Premier’,^: 57 — , — , ‘Putnam’,_9: 58 — , — , ‘Raribank’,^: 58 -, -, ‘Safford’,_9: 57 — , — , ‘Snow’,^: 58 — , — , ‘Wheeler Selection No. 6.’, 9: 57 ~ — , Myrobalan,^: 62 Plums, dwarfing understock, 10: 75, 76 ^ Poa compressa,^: 50 — pratense, 22: 50 61 ARNOLDIA Podocarpus, IJ: Plate XII, 68, 69 — macrophylla maki, 68 Podophyllum peltatum, 2^: 68, 75 Poinsettia, 15 : 61, 81 Poison Centers, 26: 65, 66 Poison Ivy, 16: 5, 6 , vine on Red Maple trees, 16 : Plate II, 7 Poisonous foliage, plants in gardens or woods with, 26: 72-75 — fruits, plants in gardens or woods with, 26: 66-72 — Plants, a Few, 65-75 — roots and stems, plants of garden or wood with, 26: 75 Pokeweed, fruiting top, 4^ Plate I, 3 Polyethylene, H: 50 — as a mulch, black, 13-16 -, black, Plate II, 14 — film, another method of using in propagation of cuttings, IJ : 66 in air layering, 13 : 67 plant propagation, 13: Plate XIII, 65 , three uses in plant propagation, 13: Plate XII, 63 — plastic, 17: 47, 48 bags, H: 26 --case, 1±. Plate XIII, 61 , propagation with, M: 25-28 --film, H: 62 ~ , its application to the propaga- tion of hardwood cuttings, 14: 57-63 Polygamodioecious flowers, 1^: 68 Polygonum arifolium, 18 — auberti, 12: 59; 13: Plate III, 9, 10 — reynoutria, 14: 24 Polystichum acrostochoides, 19: 66 Poly taenia nuttallii, 15: 80 ~ Polythene, 11: 50 — bags, IJ : 5 1 — , properties of, 11: 50, 51 Poncirus trifoliata, the hardy orange, flowers and fruits of, 1: Plate II, 35 ~ Poplar, Bolleana, 17: 22 Poplar, hybrid, 10: Plate I, 3 Poplars, Alaskan, Montanan and hybrid, 10: Plate II, 4 Populus alba pyramidalis, 17: 22, 29 — canescens, 26: Plate III, 6 — deltoides, J^: 66 — , International Registration Au- thority,^: 87 — maximowiczii,^: 58; 1 — nigra italica, 17: 29 — pests, 1^: 2, 3 — tremula X tremuloides, 26: Plate III, 6 “■ — tremuloides,^: 123 — tristis,_7: 34 Porana paniculata, 68 Portulaca oleracea, 4^ 4 Post cards available at Arnold Arbo- retum, 14: Plate III, 10, 11; IS: 40 Postage Stamps, Horticulture on, 18: 29-38 ~ Potassium permanganate, 13: 51 Potato blight, 7 — bugs,_3: 7 Potentilla fruticosa,_7: 33; 11: 12 , growing in the Arnold Arbo- retum, 15 : Plate VII, 45-52 , best of the varieties for land- scape planting, 15 : 49 albicans, 15 : 46 beani, 46 beesi, 1_5 : 46 dahurica, 46 farreri, 15 : 48 friedrichseni, 48 --‘Gold Drop’, 1^: 49 grandiflora, J^: 48 ‘Katherine Dykes’, IJ: 49 mandshurica, ^ : 48 micrandra, 1 5 : 48 ‘Moonlight7~15: 49 nana argentea, 1_5 : 46 ochroleuca, 15 : 48 parvifolia, IJ : 48 pumila, JJ: 48 purdomi, 48; \1_: 22, 29 pyrenaica, 1 5 : 48 62 INDEX TO VOLUMES 1-29 Potentilla fruticosa rigida, 49 tenuiloba, 15 : 49 , varieties in the Arnold Arbo- retum, 28: Plate XXXVIII; Plate XXXIX, 125-131 veitchi, 13: 49 vilmoriniana, 49 — tridentata, 17: 74 Powdery mildew, 1^: 5, 9 Prairie-parsley, 15: Plate XIII, 73, 80 ~ Pride, George H., appointed Asso- ciate Horticulturist, TJ: 11 Preston, Miss Isabella, 8:29 Primrose, Desert, 1_5: Plate XIII, 73, 79 ~ — , Evening, 18: 20 Prinsepia, Cherry, 22 — sinensis,^: 44; 8: 58;^: 4; 17: Plate VIII, 22, 26, 31;^9: Plate XXXVIII, 141 — uniflora, 9: 4 Privet, 16 : 44 -, Amur, 17: 21 — , California, 17: 21 — , Chinese, J^: 21 — , dense, low, 17: 21 — , European, 17: 21 — , Ibolium, 17: 21 -, Ibota, 17: 21 -, Regel, H: 21 — , Vicary, golden, 17: 21 Procedure in shipping seeds, IJ: 52 Propagating bench, polyethylene- covered, W: Plate II, 5 — some rarer plants from seed, 14: 25-28 ~ — units, plastic, ]3 : 66 Propagation and Care of Lilacs, 19: 36-45 ~ — , bibliography, 10: 76 — , dwarfing understocks, 10: 73-77 — , lilac rootstocks, 10: 57-60 — of Albizia julibrissin, 28: 36-40 Liquidambar styraciflua, y : 66 Prunus tomentosa, 24: 86, 87 of Rhododendrons,_9: 45-52 Propagation, rooting woody cuttings, 10: 33-38 — of Woody Plants by Seed, W: 33- 40 “ Propagator, Assistant, 2 Prosopis pubescens, ^ : 7 5 Pruning, 9; U: 47 — after snow damage, 4, 61 — exhibit, IJ: Plate I, 2 — , — of, at Boston Spring Flower Show, 1953, 13: 21 — , girdling root, 23: 109 — , hedges, screens~and windbreaks, ^3: 109, no —, methods of, ;4: 11; 23: 109, 110 — , , Blackberries, 4: 12 — , , Blueberries,^: 12 — , , fruit trees, 4: 11 — , , Grapes, 4: 11 — , , hedges, 4: 13 — , , lawns, 4: 14 — , , Raspberries, 4: 12 — , , vines in general, 4:12 — Ornamental Shrubs and Trees, 13: 21-24;^: 107-110 — , reasons for, 4: 9 — , rejuvenate old shrubs, 109, no — Rhododendrons, _8: 37-44 , experiments in,^: 40, 42 — , time for, ^.10 — , what to prune, n: 21; 108 — , when to prune, 13: 21; 107 Prunus americana, 4: 6; 9: 42 — angustifolia,^: 62 — apetala, 1_5 : 6 — avium, H 28; 10: 18 --plena, 17: 17; 14: 54 — blireiana moseri, ]A: 18 — cerasifera atropurpurea, n: 18 nigra, H-: 18 — cistena, 14: 18 — davidiana,^: 4 — glandulosa, 76 — “Hally Jolivette,”^: Plate XV, 51, 58; n: 6 — hortulana,j4: 6,9: 62 — ilicifolia, 19: 63 63 ARNOLDIA Prunus incisa,^: 42; 18, 21 — japonica,^: 8; 1^: 24 nakai, 17: 30 — Iantana,j4: 6 — laurocerasus, 19: 64, 69 schipkaensis, n : 74; 44 — lusitanica, 1^: 69 — lyoni, 19: 63 — maackii, 29: Plate II, 12-14 — maritima, 4: 6;9j Plate IX, Plate X, 53-64 ‘Arrowhead’,^: 58 ‘Eastham’,_9: 57 -- ‘Hancock’, _9: 56, 57 — - ‘Premier’,_9: 57; 16: 46 ‘Putnam’,_9: 58 ‘Raribank’,^: 58 — - ‘Safford’,_9: 57 — - ‘Snow’,_9: 58 ‘Wheeler Selection No. 6.\9: 57 — maximowiczi, 10: 21 — mume,^: 4 — munsoniana, 4^: 6 — ‘Newport’, 14: 18 — nigra, 32;^ 42 — nipponica, 1^: 21 — persica,^: 1 , 4 — pests, 29: 2-6, 8 — ‘Royal Red Leaf Peach’, L4: 18 — sargentii, 12; 7_: 25;^: 42; 18, 21; 14: 54 ‘Columnaris’, 21: Plate IV, 45 — ‘Schubert’, 14- 18 — serotina,^: 42; 26: Plate VII, 10 — serrula, 10: 17, 19, 21; 23: Plate XI, 123,T24 ~ — serrulata,^: 42; LO: 17, 18 ‘Amanogawa’, 1^: 22; 12: 17 ‘Botan-zakura’, 10: 22 — - ‘Fugenzo’, 12: Plate IV, 12, 17 ‘Gyoiko’, 22 ‘James H. Veitch’, 24 ‘Joi-nioi’, 1^: 22 ‘Kofugen’, ^0: 24 ‘Kwanzan’, 20, 24; 12: 17 ‘Shirotae’, 24 ‘Shogetsu’, 24 Prunus serrulata ‘Taki-nioi’, 10: 22 ‘Ukon’, ;0: 22 ^ vars., 14: 54 — - ‘Washino-o’, 10: 24 — sieboldii, 1^: 24 — species,^: 123 — spinosa purpurea, 1^: 18 — subhirtella,^.: 12 ; 1 ^. 18 , 21 , 22 ; 14: 2; 15: 6 autumnalis, 7: 25; 10: 21; 19: 69, 70 ~ ~ ~ — - ‘Hally Jolivette’, 1^: 22 ‘Moni-jigari’, 1^: 22 pendula, 10: 22 — ‘Thundercloud’, 14: 18 — tomentosa,2i 16;^: 62; 1^: 75, 76; 15: 11; 17: 30;^: Plate VIII, 81-86 — - ‘Drilea’, M: 85 — - ‘Geneva’, U: 85 ‘Graebneriana’, 84 ‘Insularis’, 'M: 84 ‘Leucocarpa’, 2A: 84 ‘Monroe’, 2A: 85 ‘Nanking Cherry’, 85 — - ‘Orient’, U: 85 , propagation of, 86, 87 ‘Spaethiana!, 84 — triflora koreana,_7: 32 — yedoensis,^: 12; 18, 22 perpendens, 1^: 22 Pseudolarix amabilis, 12: 18; ]A: 54; 16: 48 Pseudosasa,^ 32 — japonica,^: Plate II, 31, 36, 38 Pseudotsuga, 66 — menziesii, 63; 1^: Plate X, 60, 61; 23: 92;^: Plate V, 1, 8 ‘Compacta’, 28: 24 ‘Graceful Grace’, 6, 7 -- ‘Little Jon’,^: 7 — taxifolia, ^ 66; 14: 54; 1&. 72; 17: 24, 26 glauca, 3j 66 , terminal bud, h Fig. 9 (b), 66 Psorospermum febrifugum, 19: 74 Ptelea trifoliata aurea, 14: 18 64 INDEX TO VOLUMES 1-29 Publications and postcards, 18: 40 — , recent important, _2: 51 Pungapung, Plate V, 3 5 Puratized Apple spray, : 84 Pyracantha angustifolia, 19; 74 — coccinea ‘Kazan’, 1&. 26, 48 lalandei, 14: 48 — crenato-serrata, 19: 63 Pyrus japonica, 23: 17 — maulei, 23: 18 — pests, 19: 2, 3, 5, 8 — ussuriensis, 7: Plate VII, 33, 38 Quimby, M. W.,^: 37 Quince, flowering, 17: 20 — , Japanese,_8; 22 Quack grass,_7: 69 Queen Anne’s Lace, 22 : 54, 55 Quercus acutissima,^2: Plate XXX, 78, 87 — agrifolia, 22: Plate XXX, 78, 87 — alba, 14: 54; 22.: 78, Plate XXVII, 81, Plate XXIX, 85, Plate XXX, 87 — arkansaiia, 22: Plate XXIX, 85 — bicolor,^: 78, Plate XXIX, 85, Plate XXX, 87 — borealis, 14: 54;^: 80, Plate XXIX, 85, Plate XXX, 87 — caliprinos, 19: 72 — canariensis, 22: 80 — cerris,^: 80, Plate XXX, 87 — chrysolepis,^: 80, Plate XXX, 87 — coccinea, 14: 54;22.: 80, Plate XXIX, 85, Plate XXX, 87 — dentata,^: Plate XXIX, 85 — engleriana, 22: 80 — falcata,^: 80, Plate XXX, 87 — garryana, 22: Plate XXX, 87 — glandulifera, 22: 81, Plate XXIX, 87 — ilex,^: 81, Plate XXVII, 82, Plate XXX, 87 — imbricaria,^: 4; 17: 22-26; 22: 82, Plate XXIX, 85, Plate XXX, 87 — kellogii, 22: 82 — laurifolia,^: 82, Plate XXX, 87 Quercus liaotungensis, 22: 82 — libani,^: 82 — macrocarpa, 22: Plate XXIX, 85 — marilandica, 22: Plate XXIX, 85, Plate XXX, 87 — montana,^: Plate XXIX, 85, Plate XXX, 87 — myrsinaefolia, 25: Plate IX, 43 — nigra,^: 84, Plate XXX, 87 -palustris, 14: 54; 15: 79; 17: 22; 22: 84, Plate XXIX, 85, Plate XXX, 87 — pests, 19: 2-6, 8, 9 — phellos, 22: 84 — prinus, 22: 84 — robur,^: 84, Plate XXIX, 85, Plate XXX, 87; 26: Plate VII, 10 ‘Asplenifolia’,^: 84 ‘Atropurpurea’, 22: 84 ‘Concordia’, 14: 19; 22: 86 ‘Fastigiata’,17: 22-27; 22: Plate XXVI, 79, 84 -- ‘Pendula’, 22: 86 variegata, 14: 19 — shumardii,^: 86 — suber,19: 72; 22: Plate XXVIII, Plate XXX, 83, 86, 87; 23: 123, Plate XVII, 130 — variabilis, 22: Plate XXVIII, 83, Plate XXIX, 85, 86, Plate XXX, S7;23: 123, Plate XIV, 127 — velutina,12: Plate XXIX, 85, 86, Plate XXX, 87 — virginiana, 22: 86, Plate XXX, 87 — wislizenii, 22: 86 Rafinesque, C. S.,^: 51, Ij 8 Rainfall, 13: 37 Ranunculus acris, 18: 18, 22: 52 -bulbosus,18: 18, 22: 52 — ficaria,^: Plate XIX, 51,53 — repens, 22: 52 — spp.,^: 73 Rare Woody Plants, "1941 Sources of, X: 5-18 , nurseries listing, 7, 22 , supplementary list, L 21-28 65 ARNOLDIA Raspberry, wild. 18: 18 Raup, H. 28, 36 — , Expeditions to the Alaska Mili- tary Highway, 1943-1944, 65- 72 Red-box. 15: 78 Red-cedar, 15: 63; 17: 24 Redfield, J.H.,2.: 20 Red spider, 19: 5, 8, 9 Redtop, 22: 50 Redwood, 15: 75 Registered, new plants, 23: 111-118 Registration, International Plant, 23 : 85-92 — lists, Cornus, 21: 9-18 , Fagus,^: 1-8 , Forsythias, 21: 39-42 , Gleditsia. 21: 31-34 , Pieris,^: 47-50 — -, Ulmus,^: 41-80 — of Cultivar Names, Concerning the, 21: 1-8 Registrations, More Plant, 26: 13-16; 61-66 Rehabilitation of trees, 14j 41-55 Rehder, Alfred,^: 23 , On the History of the Intro- duction of Woody Plants into North America,^: 13-23 Retinospora, Plume, 17: 24 -, Thread, 17: 24 Revised Glossary of the More Com- mon Botanical and Horticultural Terms, 15: 25-44 Rhamnus alternus, 19: 72 — cathartica, 17: 22, 26 — frangula, 17: 26 asplenifolia, 20 : 14 columnare,_^: 14 -- ‘Tallhedge’, 20: 14 — japonica, 26 Rheum rhaponticum, 26: 73 Rhododendron ‘Adelbert’,^: 33 — ‘Alarich’,_9: 33 — ‘Albert’,_9: 31 — albrechti, 9: Plate VII, 44; 13: 30 — ‘Album elegans’,^: 31,^: Plate VII, 35 — ‘Album grandiflorum’, 9:31 Rhododendron amoena, 13: 32; 17: 75 — , Amateur’s Observations on Hardiness in the Pacific North- west,^ 53-56 — ‘Anton’,_^: 31 — arborescens, 37-39; H: 12; H: Plate VII, 35;16: Plate TX, 21 ~ rubescens, 29: 14 — arbutifolium, 17: 74 — ‘Arno’,^: 32 — atlanticum, H: 34 — ‘Atrosanguineum’,^: 35 — augustinii,^: 5 3 — ‘Aurore de Royghem’,1^: 38 — ‘Baroness Henry Schroeder’,^: 30 — ‘Beaute Celeste’,^: 38 — ‘Bella’,_9: 32 — ‘Bicolor’, 34 — ‘Boule de Neige’,^ 30 — ‘Britannia’,^: 53 — calendulaceum,_l: 37, 38;^ 45; U: 12; 11: 35 , sowing seed of, 9: Plate VIII, opp. p. 47 — canadense, 3,4-;7j 36;H: 32 albiflorum, J^: 3-4 — canadensis X japonicum, 12: 72 — ‘Candidissimum’,^: 31 — ‘Caractacus’,^: 33 — ‘Cardinal’,!^: 38 — ‘Caroline Gable’, 20: 15 — carolinianum,_8j 38; 17: Plate XVI, 71-74 — catawbiense,l_: 10; 8: 38, Plate XI, 39, Plate XIII, 43; 17: 74 alburn,^: 3 1 — caucasicum,!: 36 coriaceum, 9: 30 — ‘Charles Bagley’,^: 35 — ‘Charles Dickens’, 9: 35;^: 44 — chrysanthum,_7: 36 — collection in flower at the base of Hemlock Hill in color, insert,^: 32 — ‘Comte de Flandre’,1^: 38 — ‘Cornell Pink’, 20: 14 — ‘Cunningham’s White’, _21: 46 — dahuricum,!: 2;_7: 36;!^: 45; 12: 46 66 INDEX TO VOLUMES 1-29 Rhododendron mucronulatum, _5: 2 sempervirens, 15 : 14 — ‘Daisy’, 33 — ‘Daisy Rand’,_9.: 35 — ‘Delicatissimum’, 9: 31 — ‘Desiderius’,^: 33 — ‘Dr. H. C. Dresselhuys’, 21: 46 — ‘Duke of York’,^: 32 — ‘Echse’,_9: 34 — ‘Eva’,_^ 34 — ‘Everestianum’,^: 34 — ‘Fedora’,^: Plate XVII, 59 -‘Fee’,^: 35 — ferrarae,_2: 6 — ferrugineum, 7: 36 — ‘Flamboyant’, 38 — flavum,^: Plate IX, 21 — ‘Flushing’,_9.: 32 — fortune! hybrids, 17: 74 — ‘First Camille von Rohan’, ^ 38 — gandavense, 37-40; JJ: 12; 13: 34 — ‘General Grant’, 33 — ‘General Trauff’,^: 38 — ‘Ghent’,_8: 24 — ‘Gloria Mundi’,_3j 38 — ‘Golden Sunset’,^: 14 — ‘Hannah Felix’,_^: 34 — ‘Hardiness Notes’, 53-56 — ‘Henrietta Sargent’, 9: 32; IJ: 46 — ‘Heureuse Surprise’, _3j 38 — hirsutum,_7: 36 — ‘H. W. Sargent’, 9: 35 — ‘Ignatius Sargent’,_9: 33 — indicum,^: 6 -, injury, 33-36 — , International Registration Au- thority,^: 87 — ‘James Bateman’,^: 32 — ‘James Macintosh’,^: 35 — japonicum,lJ : 35;^: Plate IX, 2 1 — ‘Josephine Klinger’, 3: 38 — ‘Julius Caesar’, 3: 38~~ — keiskei,Jj 26;i7: 74 — ‘Kettledrum’,^: 33 — , Korean, 6: 11 Rhododendron ‘kosterianum’, 11=35 — kurume (Azalea), 17: 75 — ‘Lady Armstrong’, 1: 32 — laetevirens, 17: 75; 21: 46 — ‘Lee’s Purple’, 35 — ‘Louise Hunneweir, 12 ^: 72 — ‘Louise Gable’,10: 15 — luteum,l_: 37-40 -‘Mars’, 20: 14, 15 — maximum If 38; 15: 68; 17: 75 — ‘Melton’, 1: 35 — ‘Minerva’, 1: 38 — minus 17: 75; 21: 46 — molle, 3: 37, 38, 40 — ‘Mollis’ hybrids, If 24 — ‘Mrs. C. S. Sargent’, 9: 34 — ‘Mrs. Milner’,1^ 34 — mucronulatum, 1 j 37, 40;_7f 26, 36;11: 14; 11 30 — mucronatum, 13: 30; H: 14; 17: 75; 20: 14; 26= Plate X, 23 — myrtifolium, 17: 75 -‘Norma’,_9: 35;11: 46 — nudiflorum,! 37 11;^: 24; 13: 35;16: Plate IX, 21 — obtusum, 13: 32 amoenum,!: 24; H: 32;H: 75 arnoldianum, 13: 32 hybrids, 26: 28 ‘Hinodegiri’, IJ: 32 japonicum,!: 37, 38; 17: 75 kaempferi,! 37, 38, 40;!^ Plate VII, 47;1 9;^ 21, 22; 9: 11,45;13: 32 ‘Feodora’, 26: Plate XVII, 59 hybrids, 26: 28, 29 — , order of bloom, 13: 29 — ‘Pallas’, 1 38 — ‘Parson Gofe’,1: 34 — Path on Bussey Hill,_7_: Plate IV, 27 — pests, 19 ^: 4-7, 9 — X P.J.M. Hybrid, 29 : 14 -, Pinkshell,! 9;_8: 21, 22 — plan of border, insert, 1: 6 67 ARNOLDIA Rhododendron ponticum,_7j 10 — , Poukhan,^: 24 — ‘Pres. Lincoln’, _9: 32 — propagation,^: 45-52 , antibiotic substances,^: 48, 50 , chart,^: Table I, 49 , damping-off disease,^ 46, 48 , general culture, 9: 51 , seed collection, soil, sewing and storage, 9: 45, 50, 51 , treatment of soil,^ 46, 48 — ‘Pucelle’,1: 38 — ‘Purpureum Elegans’, 9: 35 — ‘Purpureum Elegans Grandiflo- rum’,_^ 35;^: 46 — racemosum, 17: 75 — , rooted cuttings of, ^4: Plate XII, 59 — ‘Rosebud’, 20: 15 — roseum,^: 37;^ 11;^: 21,24; 13: 35 — ‘Roseum Elegans’,^: 35 — ‘Roseum Superbum’, 21: 46 — , Royal, 6: 11 — , Rustica flore pleno hybrids, 26: 31, 32 — schlippenbachii,_3: 37, 38, 40;^: 11;_9: 51; 11: 14; 13: 32 — simsii,!,: 6 — smirnowi, 1 1 : 14; 17: 75;H: 46 — ‘Smoky Mountaineer’, 26: Plate XI, 25 — , Snow, 17j. 75 — spp.,^: 1, 6 — ‘Sultana’,^: 31 -, Torch,_6: 9, 11;_8: Plate VI, 21- 23;_9: Plate II, 5 — vaseyi,^: 24;J^: 37;^: 9;_8: 21, 22;_9: 51; 11: 14; 13 : 34;26: Plate XII, 27 — viscosum, 37, 38; 13: 35 — waterei,^: 31; 17: 75 — Wellesley anum, 12 : 75 — winter injury, j4: 17-20 , care of,_4: 20 — yedoense,^: Plate X, 23 poukhanense, 6: 11;_8: 24; 13: 34 Rhododendron yedoense ‘Yodogawa’ Azalea, 13: Plate VIII, 33 Rhododendrons, 1_: 17-24, 28; 4.: 23; 14: 9, 10; 15: 68; U: 62 — and Azaleas, 17: 78 — , evergreen, living more than 10 yrs. in the Arnold Arboretum, 29: 36-40 — , Flower Colors of Hardy Hybrid, _9: 29-36 — , Gable hybrids, 26: 29, 30 — , Ghent Hybrids Hardy in New England,!: 37-40 , rooting under plastic, 20: 1-7 — , growing, from seeds,_9: 45-52 — , hardiest, 26: 17-32 — , hardy at Wellesley, 12: 62 in the Arnold Arboretum, 26 : 18-22 in the Hunnewell Arboretum, 12: 72 in the Pacific Northwest, An Amateur’s Observations on Hardiness from Sowing, 2_: 53-56 -, Knap Hill hybrids, 26: 30, 31 — , Mollis hybrids, 26: 31 — pruned in two different ways, _8_: Plate XII, 41 — , pruning of, ! 37-44 — , Seventy-Five Years of Growing in the Arnold Arboretum, 29: 33- 40 — , Vuyk hybrids, 26: 32 — , winter damage to, 4: 17-20;! 9; 12: 46 — , Yerkes-Pryor hybrids, 26: 32 Rhodora canadensis, 1: 3;11: 32 — , White Flowering,!: 3 Rhodotypos scandens, 16: 72 Rhus aromatica, 13: 16; 14: 24 — radicans, 26: Plate XXII, 70, 71, 74 — vernix, 26: Plate XXII, 71, 72, 74 Ribes alpinum, 17: 22, 26 — diacanthum,!: 34 Ricinus communis, 26: Plate XXII, 70, 71 Ridgway, Color Standards and Color Nomenclature,!: 44, 45 68 INDEX TO VOLUMES 1-29 Robeson, Andrew, h 30 Robeson, Mary Allen, h 30, 31 Robinia, 21, 22, 24 — ambigua ‘Bella-rosa’, 21: 24 — fertilis, 21: 22 — hartwigii, 21: 22, 24 — hillieri, 16: 26; 21: 24 — hispida,^: 22 — holdtii, 21: 24 -‘Idaho’, 21: 24 — kelseyi, 16: 26; 21: Plate II, 24, 27 — leucantha,_21: 24 — luxurians, 2 1 : 22 — margaretta, TA : 24 — neo-mexicana, 21: 22 — pseudoacacia, 15: 74; 16: 26; 21: 22, 24, 22: Plate XXIII, 71; 26: Plate II, 5; 70 ‘Annularis’, 21: 22 ‘Bessoniana’, 21: 22 ‘Cylindrica’, 21: 22 ‘Decaisneana’, 21 : 22 ‘Dependens’, 21: 21 --‘Erect’, 11: 21 ‘Inermis’, 21: 21 ‘Microphylla’, 21: 21 ‘Rectissima’, 21: 22 ‘Semperflorens’, 21: 22 ‘Umbraculifera’, 21: 21 ‘Unifolia’, 21: 21 — slavini, 16: 26 ;H: 24 — viscosa,H : 24 Rock, J. F.,_7: 33 Rocky Mountains in Summit Pass, ±. Plate VI, 69 Rohrbach, Heinrich, European Mis- tletoe (Viscum album). The, 29: 69-72 Root system, type of, obtained on cuttings under polyethylene plastic cover, 20: Plate I, 3 Rooting, effect of time of year, temperature, concentration of IBA, 27: Plate XXV, 89 — Ghent Azaleas Under Plastic, 1-7 Rooting of Conifer Cuttings, 17 : 85-90 — results, preliminary experiments, hard-to root Asiatic Maples, 56 , softwood cuttings, from ma- ture plants of Asiatic Maples, 17: 52, 53 , , young seedlings Asiatic Maples forced in green- house, 17: 55 — woody cuttings, 10: 39 Rootstocks for Lilacs, 10: Plate XIV, 57-60 , bibliography, 10: 60 Rorippa microphylla, 22: 5 5 — nasturtium-aquaticum, 4: 4; 22: 55 Rosa centifolia,!: 20; 14: Plate VI, 31 — gallica,lj 20 — ‘Geranium’, 20: 15 — hugonis,^: 10 — , International Registration Au- thority, 13: 87 — ‘Max Graf, 14: 24 — moyesii, 20: 15 ‘Geranium’, 1&. 26 — multiflora, H: 14 — pests, 19: 5, 6, 9 — primula,^ 10 - ‘Redwing’, 20: 15 — rugosa, 17: 30; 29: Plate XXXVIII, 141 — virginiana, 16: 6; 17: 22, 30 alba, 16: 48 — wichuraiana, 13: 16; 14: 24 Rose of Sharon, 1 j 41; 14: 10 — species, 14: 10 — , Syrian,!: 41 — , Virginia, 17: 22 Rosebay, 15: 68 Rosemary, 22: 53 Roses,! 24 — , donation of old-fashioned types, 8.: 20 — , list of old-fashioned at Arnold Arboretum, 14: 29-32 69 ARNOLDIA Rotenone dust, 50 Royal Agricultural Society of India, 1 : 44 — Horticultural Society Colour Chart, 8: 31; H: 41-44; 17: 60 of Great Britain, _7.: 44 Roystonia regia, 19 : 67 Rubus idaeus, 18: 18 Rumex crispus,^: 4 Run-away-Robin, 22: 52 Running-cedar, JL5: 70 Ruscus aculeatus, 15: 78; 19: 72 Russian-olive, 17: 21 Rye-grass, 22: 50 Sabal palmetto, 19 ^: 67 S2igG,22: 53 St. Johnswort, California, 17_: 21 Salal, 15: 68 Salicaria, Spiked, 22: 49 Salix alba chermesina, 62; 18: 58 — pentandra, 17_: 22, 26 — pests, J^: 4, 9 — purpurea, : 30 pendula, 1^: 18, 27 Salt spray, plants uninjured by, 1^: 44, 45 — water damage, 14 : 41-46 , plants killed by, 14: 46 Samaras, Maple, 16: 72 Sambucus canadensis, j4: 6; 26: 74 aurea, 14: 19 fructu-lutea, 16: 48 maxima, 8: 58 San Jose scale, 19 ^: 2, 7 Sandersonia aurantica, J^: 76 Saponaria ocymoides, 14: 24 Saran cloth, U: 67; 17: 48 Sargent, Charles Sprague,!,: 29-32; 1: 30, 33, 35;_6: 9, 26, 45,48, 49,56, 60 ^ 7 : 1,2, 30,33,39, 52 , in the Arnold Arboretum Library, 1904, J_: Plate I, 31 Fund,i_: 31, 32 , One-hundredth Anniversary of the Birth of,Jj 29-32 Sargent, Mary Robeson, Fund,X: 30, 31 Sargent Plaque, X Plate IX, 60 — Weeping Hemlock, 23: 101 Sargentia,Xi 51 Sargent’s Silva of North America, X 52 Sasa, X 30, 32 ' — argenteo-striata, X 34 — chrysantha,X Plate II, 32 — palmata,Xi Plate VI; 34, 36, 39 I — pumila,_6: Plate II, III, 3 1-34 j — senanensis,X- 36 i — tessellata,X Plate III, 33, 36 ! — variegata,^: Plate IV, 34, 35; 14: | 24 — veitchii,X Plate V, 34, 37 forma minor, X 36 \ Sassafras albidum molle,X 4 — pests, 19: 6, 9 Saunders, A. P.,X 7 Sax, Karl,X 40;1: 4, 12, 14; 19: 57;21: 37 , The Bussey Institution, 7j 13- 16 , Dwarf Trees, 1^: 73-78 , Paste the Poison Ivy, 16: 5-8 , Plant Breeding at the Arnold Arboretum, _7- 9-12; 15: 5-12 , Rootstocks for Lilacs, 10: 57- 60 Scaffolds, the use of, in tree breed- ‘ ing, 10: Plate IV, 6 Schima wallichii, JJ7 : 6 Schinus molle, 15: 75 — mollis, 19: 63, 64 Schizophragma, M: 17, 26 — crassum, 24: 31 — hydrangeoides, 24: Plate III, 18, 20; Plate IV, 27-29 1 — integrifolium, 24: 30 — , key to the species of,^: 28 Schlumbergera bridgesii, 15,: 80 Schmitt, Louis Victor, X 3 ; 7j 2 Schrebera, 25: 24 Schwarten, Mrs. Lazella, Librarian, retires, 27 : 68 Sciadopitys verticillata, 12: Plate I, 5, 18; 14: 54 70 INDEX TO VOLUMES 1-29 Scilla sibirica, 54 Scolytus multistriatus, 7^: 18 Screening Junkyards, Gravel Pits and Dumps, Plants for,^: 45-48 — shrubs for dry, sandy soils, 46 normal soils, 2^: 48 — trees for dry, sandy soils, 46 — trees for normal soils, 2J_: 48 Scurfy scale, 19.; 2 Sea-lavender, 1^: 80 Seasonal hardening in trees and shrubs, 57-60 useful even though not winter-hardy, 26; 61- 63 — Rhythm of Development of Woody Plants and Its Importance in Introduction 27: 1-14 Sechium edule, 4: Plate IV, 33 Secrest Arboretum, 23; 119 Sedum purpureum, 22: 54 — species, 14: 24 Seed coat dormancy, method of overcoming. 25: 2 — collection dates, chronologically, 13: 42 of Woody Plants,!.: 53-56 — Dispersal by Birds and Animals in the Arnold Arboretum, 27: 73- 84 — germination, effect of light on, U: 40 — , Propagating some Rarer Plants from, 14: 25-28 — , Propagation of Woody Plants by, 20: 33-40 Seeds of Chionanthus and Viburnum, 20: Plate IX, 37 — of Woody Plants, j!: 41-60 — that can be stored dry and sown within the year,JJ: 54 — that can be sown or stratified as soon as ripe, 13: 54 — that should not be allowed to dry out in shipping, 13: 54 — to be stratified, 20: 35, 36 — with double dormancy, 20: 38 Seeds without inhibiting dormancy, 20- 33, 34 Semiarundinaria, 6: 30, 32 — fastuosa, 6: 38 Sentry Ginkgo along Roosevelt Blvd.ll: Plate XII, 43 September bloom, list of woody plants for, 27: 69, 70 Sequoia, 19 : 64 — sempervirens, 15: 75; 19: 63; Plate XV, 128 Sequoiadendron giganteum, 23: Plate XV, 128 Serrata sinensis, 19: 10 Shagbark Hickory, 2: 11 Shallon,!!: Plate XII, 68, 69 Sheep-laurel, 17: 70 Shibataea, 6: 32 — kumasaca,j^ Plate II, IV, 31-35 — ruscifolia, 6: 34 Shipping seeds, 13: 50, 51 Short, Charles Wilkins, 2^ Plate VI, 16, 22,23 Short Guide to Care of the Garden during War Time, j4: 9-16 Shortia galacifolia, 2: Plate IV, Plate VII, 13-28 , Asa Gray and his Quest for, !: 13-28 Shrub Altheas, 18: 45-51 — collection, Jj 24 — Honeysuckles with pink to red flowers, 20: 29-32 — rejuvenation, 13: 23 Shrubs and Trees, Pruning, 13:21- 24 with Colored Foliage Grow- ing in the Arnold Arboretum, 14: 13-19 Vines for American Gardens, 10: 71 — , autumn blooming, _4: 44; 12: 59 — for Massachusetts Gardens, 11: 1- 20 at Least Two Seasons of Beauty, Some, 11: 37-40 — , Some Winterkilling of Certain, 12: 49-52 71 ARNOLDIA Shrubs with gray twigs, IS : 60 twigs a conspicuous light brown color, 62 yellow twigs, 1^: 62 — withstanding snow and ice for 24 hours, 13: 39 Siberian Squill, 54 Silene cucubalus, 18: 18 — noctiflora, 1^: 18 Silk Oak, 15 : 80 Silk Tree,^ 11 , hardy, 1^: 15 Silphium perfoliatum, Plate V, 20, 23 Silva of North America, 7:52 Silvics of Forest Trees in the United States, Review of, 47 Simple Foliage Key to the Firs, 3: 65-71 to the Hemlocks, 3: 57-64 to the Pines, 3: 49-56; H: 63-70 Skinner, F. L., 8: 29 — , Fifty Years of Gardening in Nor- thern Manitoba, 7 : 29-40 Skirm, George, 7: 10 Slieve Donard Nursery, 21: 37 Small amounts of spray materials, 19: 10 Smaller Street Trees Needed, H : TI- TS Smilax, IJ: 71 — lanceolata, 72 — laurifolia, 67 -Wild, 15: 72 Smith, A. C., 4: 28 Smith, Harrison W., 8: 4 Snow, IJ: 28 — damage, 1-4 Snow, Mrs. Ina S., 9: 57, 63 Snowdrops, 22: 53 Solanum, 2: 8 — aculeatissimum, 1_5: 75 — capsicastrum, 81; 1^: 69 — dulcamara, 55; Plate XX, 67, 70 — pseudo-capsicum, 1^: 81;^: 75 Solanum pseudo-capsicum ‘Cleve- land Cherry’, 81 — ‘Patterson’, 1^: 81 Some Cultivated Relatives of the Camellia, 17: 1-12 — Horticultural Activities of Justin Smith Morrill, 41-52 — of the Best Vines and Ground Covers for Massachusetts Gardens, 13: 1-19 — shrubs and trees with colored foliage, 14: 13-19 —’Ways Plants Climb, 53-66 — Winter-killing of Certain Shrubs as a Result of the Winter of 1951- 52, 12: 49-52 Sonchus oleraceus, 4: 4 Sophora, ^ : 20, 21 — japonica, 12: 18; 14: 54;^: 20, 21 Sorbus, 29: 61-68 — alnifolia, 14: 27; 16: Plate XIII, 47, 48, 123;^: Plate XVIII, 63 ; Plate XX, 62,67 — americana, 5: Plate III, 13; Plate XVIII, 62, 63 — aria, Plate XVIII, 63, 64 ‘Aurea’, 64 ‘Majestica’, 2^: 64 — X arnoldiana, 2^: 64 — aucuparia, ]A: 54; Plate XXII, 77;^: Plate XVIII, 63, 64 — - ‘Asplenifolia’, Plate XVIII, 63,64 ‘Beissneri’, 64 edulis, 64 ‘Fastigiata’, Plate XX, 64, 67 — - ‘Pendula’, W: Plate XIX, 64, 65 xanthocarpa, 64 — cashmiriana, Plate XVIII, 63, 66 — decora, 29: Plate XVIII, 63; Plate XIX, 65,66 — discolor, 7: 58;^: 66 — folgneri, 66 — X hybrida, Plate XVIII, 63, 68 72 INDEX TO VOLUMES 1-29 Sorbus X hybrida ‘Fastigiata’, 29-. 68 ‘Gibsii’, 79. 68 — japonica, 14: 28 — pests, 19: 2, 3, 5, 9 — rehderiana, 29: Plate XVIII, 63 — sargentiana, 68 — tianshanica, 68 — vilmorinii, Plate XVIII, 63, 68 Sorensen, Dr. Paul A., appointed Assistant Horticultural Taxono- mist, 67 Sources for a few new plants, 9: 1-4 rare woody plants, 1: 5-19, 21- 28 trees, 2, 3 vines and ground covers, 13 : 2 Spanish Bayonet, 78 Spath Nurseries, 35, 36 Spent Hops— An Effective Mulching Material, 7: 69-72 Spindle Tree, European, 23 Spiraea albiflora, 21: 54 — X arguta, ^ : 54 — arguta compacta, 54 — billiardii, 21: 51 — X brachybotrys, 54 — bullata, 54 — bumalda, 17: 30 alpina, 21: 58 — - ‘Anthony Waterer’, n: 51, 52, 56 crispa, Plate VI, 54, 55 froebelii, ^ : 54 ‘Norman’, 56 — canescens, 51: 56 — cantoniensis, 21: 56 — decumbens, 56 — digitata nana, 21: 58 — japonica,^: 56 alpina, 14 atro sanguine a, 21: 56 ovalifolia, 2 1 : 56 ruberrima, 56 — latifolia, 21: 51 — margaritae, 56, 57 — media sericea, 5 1 Spiraea menziesii, 21: 51 — X multiflora, 57 — nipponica, 17^: 22, 27 rotundifolia, 57 — pikoviensis, 21: 51 — prunifolia, 17: 22, 26; 21: 52, 57 — ‘Rosabella’, ^ : 58 -‘SnowWhite~^: 58 — ‘Summer Snow’, 58 — X superba, ^ : 57 — thunbergii, 17: 22, 30; 19: 73; n: 57 compacta, 57 — tomentosa, 21: 51 — trichocarpa, 51, 57 erecta, 58 — trilobata, 21: 51 — vanhouttei, 7 : 30; 17: 22, 26; 21: 54, 58 — veitchi, 17: 22, 30; n -. Plate V, 53, 58 — wilsonii, 21: 58 Spiraeas, 14: 10;^: 51-58 Spirea, Bridalwreath, 17: 22 — , Nippon, 17: 22 — , Thunberg, 17: 22 — , Vanhoutte, 17: 22 -, Veitch, 17: 22 Spireas, The Best Ornamental, 51-58 Spray materials, 2-6 , small amounts of, 1^: 10 — , plastic, 16: 64 — program in the home garden, 4: 15, 16 — Schedule of the Arnold Arbore- tum, 13: 73-77; 19: 1-16 Spraying, 15: 13 Spring, An Early, 5: 1-3; 16: 1-4 — in the Arboretum, 7: 25-28 — calendar, 21: 38 — classes, see Arnold Arboretum, Spring classes — comes to the Arnold Arboretum, 12: 45-48; 1^: 13-16 — displays in the Arnold Arboretum, 4: 21-24 73 ARNOLDIA Spring in 1946, 6: 1-4 , half-hardy plants, 6: 3, 4 , pruning, 6: 3 , shrub collection, 6: 2, 3 , vines, 6: 2 — planting notes, 16: 17-27 -, 1948, 8: 9-12 -, 1949, 9: 9-12 — rushes on, 5: 21-24 — walk through the Arnold Arbore- tum, 10: 29-32, IS: 13-16 Spruce Birds, 1_5: Plate XIII, 73, 75 -, Black, IJ: 63; 19: 62 — , Colorado, Blue, 17: 24 — gall aphid, 2, 8 — mite, 19: 5, 7, 9 — , needle of, 3: Fig. 1 (b), 58 — , Norway, 16: 62; 17: 24; 1^: Plate XI, 65,68 — , Oriental, 17 : 24 -, Red, 15: Plate XI, 65, 75 — , Serbian, 17: 24 — twig, 3: Fig. 8 (b), 66 -, White, 63; 19: 63 — , witches’-brooms, Plate VIII, 30, 32,44 — , , propagation, 48 Spruces, simple foliage key to Hem- locks and, 3: 57-64 Spurge, Japanese, 73 Squash vine borers, 3: 7 Stamps, Postage, Horticulture on, 18: Plate VI, Plate VII, Plate VIII, 29-38 Standard Postage Stamp Catalogue, Scott’s, 1^: 29 Standards of color, uniform, 7: 41- 52 Staphylea holocarpa rosea, 1^: 27 Star Flower, 15: Plate XIII, 73, 76 Star-of-Bethlehem, 15: 83;^: 54 Stars, 1^: Plate XXI, 71 Stellaria graminea, 1^: 18;^: 52 Stephanandra incisa, Plate XIX, 64 ‘Crispa’, 16 Stewartia, 17: 8 Stewartia grandiflora, 11:10 — koreana, 7: Plate X, 63; 9: 4; 12: 18; U: 54; IJ: 8, 10, 1^7 Plate” XIV, 59;^: Plate XIV, 123, 127; j Plate XII, 48 ; — malacodendron, H: 8; Plate VIII, 43 — monadelpha, 17: 10; Plate XI, 47 — ovata, 17: Plate IV, 8, 10, 11; Plate IX, 45 — pentagyna, 17 : 8 — pseudo-camellia, 17: Plate III, 9, I 10;^: Plate XI, 47 — serrata, 17: 10 — sinensis, Plate X, 46 Stewartias, Introduction of Our i Hardy, The, 41-48 Sticker, H: 84 ' Stichwort, 52 ’ Stratification, 14: 26, 28; 20: 34, 35 ! Stratifying seeds in plastic, 13: 67 Strawflowers, 17: Plate XIII, 73, 76 Street planting, H: 42 I — trees, H: 41-48; 14: 49-55 j , size of at planting time, 11: 44 , suburban planting, y.: 44 , trial plot for, y : Plate I, 1-7 | Strelitzia reginae, 17: 82 Striped cucumber beetles, 3: 6 Stuart, John, 17: 8 ; Styrax, y.: 62, 64 i — japonica, 17: Plate V, 15; 14: 54 — obassia, 3 : 27 | — officinale, 21: 62 j Styrofoam, 13: 62-66; lj6: 70 Sulfur, dusting, 13 : 84 Sullivant, William S., 2: 18 Sutton, Stephanne B., Herbarium Introduced, The, 25 : 37-40 Symplocos paniculata, ^ : Plate XXI, 75 Swags, Plate XXVIII, 120, 121 — , making of, 1^: 70 Sweetbells, y: 68 Sweet-gum, 17: 76; 1^: 72 blight, y : 64 Sylva Telluriana, 3:8 74 INDEX TO VOLUMES 1-29 Symphoricarpos albus laevigatus, 17: 30 — chenaultii ‘Hancock’, 16 — foetidus, 74 — orbiculatus leucocarpus, 8:59 Syngonanthus sp., 1^: 76 Synthetic hormones, 13 : 61 Syrian Rose, 1: 41 Syringa, 6: 3,‘l0, 12;^: 24 -‘Addie V. Hallock’, 80 — ‘Aladdin’, 80 — ‘Alexander’s Advance’, 66 — ‘Alexander’s Aristocrat’, 66 — ‘Alexander’s Pink’, '2n_: 66 — ‘Alice Stofer’, 13 : 80 — amurensis, 8: 22, 36; Plate VI, 25 japonica, 7: 12, 30; 8: 36; VI: Plate VI, 16, 19; 14: 55; 19: 25; 23: 123 — ‘Anna Amhoff’, 23: 80 — ‘Anna Nickles’, 80 — ‘Ariel’, 8: 34 — ‘Audrey’, 8: 32 — ‘Bellicent’, 8:31 — ‘Berdeen’s Chocolate’, 80 — ‘Bertha Phair’, 23: 80 — ‘Betty Opper’, 80 — ‘Betty Stone’, 80 — ‘Bloemenlust’, 80 — ‘Blue Boy’, 13 — ‘Blue Mountain’, 13 — ‘Burgemeester Loggers’, 80 — ‘Caliban’, 8: 32 — ‘California Rose’, 13 — ‘Carlton’, 8: 32 — ‘Caroline Foley’, 80 — ‘Charles Hepburn’, 8: 34 — ‘Charmian’, 8: 34 -‘Chiffon’,^: 13 — chinensis, 8: 22; 10; 17: 22, 26; 19: 29 saugeana, 8: 22 -‘Chris’,^: 80 -‘Congo’, 8: 22, 59; 9: 13 — ‘Cora Lyden’, 80 — ‘Coral’, 8: 32 Syringa cultivars, 80 — ‘Daphne’, 80 — ‘Dark Night’, 13 — ‘Dawn’, 8: 32 — ‘Descanso Beauty’, 26: 13 — ‘Descanso Giant’, 13 — ‘Descanso King’, 13 — ‘Descanso Princess’, 14 — ‘Descanso Spring’, 14 — ‘Desdemona’, 8: 32 — ‘Directeur Doorenbos’, 81 — ‘Director General Van Der Plasche’, 81 — ‘Doctor Brethour’, 81 — ‘Doctor Chadwick’, 81 — ‘Donald Wyman’, 8: 34 — ‘Dorcas’, 8: 32 — ‘Early Bird’, U: 14 — ‘Edgar T. Robinson’, 81 — ‘Elinor’, 8: 32 — ‘Enid’, 8: 34 -‘Esta’, 81 — ‘Evangeline’, 8:59 — ‘Fantasy’, 81 — ‘Floreal’, 8: 34 — ‘Florence Christine’, 81 — ‘Forest Kresser Smith’, 14 — ‘Francisca’, 8: 34 — ‘Frank Patterson’, 81 — ‘Geraldine Smith’, 81 — ‘Guild’s Pride’, 26: 14 — ‘Guinevere’, 8: 34, 59; 9: 4 — ‘Handel’, 8: 32, 60 — ‘Hecla’, 8: 32, 60 -‘Hedin’, 8: 32,60 — ‘Helen Palagge’, 23: 81 — ‘Helen Schloen’,^: 81 — henryi, 8:32 ‘Lutece’ in the Arnold Arbore- tum, pictured with S. villosa, 8: Plate X, 35; 15: 20 -‘Hiawatha’, 8: 32; 9: 4 — hyacinthiflora, ^ : 20 — ‘Ingwersen’s Dwarf’, 81 -‘Inez’, 23: 81 — , International Registration Au- thority, 87 75 ARNOLDIA Syringa ‘Isabella’,^: 32, 60;^: 4 — ‘J- Herbert Alexander’, 23: 81 — ‘J- R- Koning’, 23: 81 — ‘Jack Smith’, 81 -‘Jane’, 23: 81 — japonica,^: 39 — ‘Jennie C. Jones’,,^: 81 — ‘Jessica’,^: 34 — ‘Jimmy Howarth’, 23: 81 — ‘John’s Favorite’, 23: 81 — ‘John of Monmouth’, 23: 81 -josikaea,_8: 24;17: 22, 30; 19: 25 zabeli,^: 34 — julianae,^: 34 — ‘Katherina’,^ 32 — ‘Ken Berdeen’, 23: 81 — , Key to the List of Originators, 13: 78 — ‘La Canada’, 26: 14 — laciniata,_8: 59; 15: 10; 17: 22, 26; 18: Plate I, 2, 5; 19: 29 — ‘Lavender Lady’, 23: 81 — ‘Lewis Maddock’, 23: 81 — ‘Louvain’, 23: 81 -‘Lucelle’, 27: 66 — ‘Ludwig Spaeth’, 8: 22, 37;! 13 — ‘Lutece’, 8: 34 — ‘Lynette’,1: 32 — ‘Macrostachya’,_8: 37 — ‘Madame Rosel’, 23: 81 — ‘Maiden’s Blush’, 16: 14 — ‘Margaret Opper’, 23: 82 — ‘Martine’,13: 82 — ‘Mary Blanchard’, 23: 82 — ‘Maud Notcutt’,13: 82 — ‘Mauve Mist’, 23 : 82 — ‘May belle Farnum’, 23: 82 — microphylla, 15: 10; Jl: 26 — ‘Miranda’,_8: 32,1: 4 — ‘Miss Canada’, 17: 66 -‘Miss Kim’, 13: 82 — ‘Mountain Haze’,13: 83 — ‘Mount Baker’, 23: 82 — ‘Mrs. Fannie W. Heath’, 23: 82 — ‘Mrs. Harry Bickle’,13: 82 — ‘Mrs. J. Herbert Alexander’, 27: 66 Syringa ‘Mrs. Robert M. Gardner’, 23: 82 — ‘Mrs. W. E. Marshall’,!: 59; 9.: 13 -‘Negro’, !_ 22 — ‘Nellie Bean’, 23: 82 — ‘Nellie Marie’, 82 — ‘Nerissa’, 8: 34, 60 -‘Nina Baker’, 82 - ‘Niobe’, 82 — ‘Nocturne’,! 34 — , nurseries offering, 23: 79, 80 — ‘Oake’s Double White’, 13: 82 — oblata, L5 : 20 dilatata, 1: 3 3 — ‘Octavia’,! 32, 60 — ‘Olivia’,! 34 — , origin of,! 29 — ‘Paulina’, 8: 32, 60 — ‘Pauline Beck’, 13: 82 — pekinensis,! 36 I — X persica,_8; 22; 11: 16; 19: 29 laciniata,!: 4 --var.,1: 12 — pests, 19: 2-4, 9 — pinetorum,! 32 -‘Pink Bluet’,!3: 82 — ‘Pinkie’,13: 82 — ‘Pinkinsun’, 23: 82 — pinnatifolia,! 12; 15: 20; 19: 29 -‘Pom’,17: 66 — ‘Portia’, ! 32 — ‘Prairial’,! 32 — ‘President Eisenhower’, 23: 82 — prestoniae,!: 26;! 29-36; 15: 20 — - ‘Hecla’,! Plate IX, 33; U: Plate VI, 19 , hybrids,! 60 — - ‘Isabella’, 11: Plate VI, 19; 15: J Plate VI, 25 ! --, vars.,! 29-36; 11: 16 | — ‘Primrose’, 20: 16 ' — pubescens,!: 22, 60;_9: 4 — ‘Purple Gem’, 13: 82 —, recommended varieties,! 32, 34 'I — ‘Redbud’,17: 66 — reflexa,! Plate VIII, 29, 30; 19: 25 76 INDEX TO VOLUMES 1-29 Syringa, registration of cultivars, 23 : 77-83; 27: 65, 66 — ‘Rhum von Horstenstein’,^: 13 — ‘Robert Dunham’, 23: 82 — ‘Romance’,^: 82 — ‘Romeo’, 32 — ‘Rowancroft Pink’, 23: 82 — ‘Royal Purple’, 26: 14 — ‘Royalty’, _8: 36 ^ 23 : 83 — ‘Rutilant’,_8: 34 — ‘St. Joan’, 23: 82 — ‘Saint Margaret’, 23: 82 — ‘Sierra Blue’,^: 83 -‘Silvia’,^ 32 — ‘Snow White’, ^3: 83 — ‘Sobra’,13: 83 — ‘Spring Dawn’, 23: 83 — ‘Spring Glory’, 23: 83 — ‘Spring Sonnet’, 26: 14 — ‘Sulte’,^: 34 — ‘Superba’, 66 — , supplementary registration list, 23: 77-83 — ‘Swanee’,_8: 34 — swegiflexa, 31, 32 — sweginzowi,^: 32;^: 26 — ‘Sylvan Beauty’,^: 14 — ‘The Bride’, 83 — tigerstedtii, 20: 16 — ‘Titania’,_^: 32 — ‘Tom Taylor’, 13: 83 — tomentella, _8_: 32; 19: 26 — ‘Two Star General’, 23: 83 — ‘Ursulla’,_8: 32 — ‘Valeria’, 1: 32 — , varieties divided into color groups, _8: 31, 32, 34, 36 — velutina,!: 33; 19: 26 excellens,^: 34 — ‘Verdugo’s Pride’, 26: 14 — villosa, 8.: Plate VIII, Plate X, 22, 29, 30, 34, 35; 15: 20; 19: 26 — ‘Voorzitter Buskermolen’, 23: 83 — vulgaris,^: 12;^: 22, 29, 36;^: 13, 15; 17: 22, 26;19: 26 --alba, 19: 26 aucubaefolia, 14: 19 Syringa vulgaris, cultivars for sale, 19: 27, 28 , — for sale, blue, 19 : 27 , — for sale, lilac, 19 : 27 , — for sale, magenta, 19 : 28 , — for sale, pink, 1^: 27 , — for sale, purple, 19: 28 , — for sale, violet, 19 : 27 , — for sale, white, 19: 27 varieties, 15 : 22 -‘W. T. Lee’, 23: 83 -‘W. T. Macoun’,^: 32 -‘Westend’,^: 83 — ‘White Spring’, 26: 14 — ‘White Surprise’, 13: 83 — wolfi,_^: 34 — ‘Yellow Spek’,10: 16 — yunnanensis, 19: 25; 20: 16 Tamarix gallica, 19: 64 — pentandra, 17 : 30 Tanacetum, 15: 79 — vulgare, 18: Plate V, 20, 23 Tansy, common, 18: Plate V, 20, 25 Taraxacum officinale, 4^: 2 Taxodium distichum ‘Monarch of Illinois’, 29: 7 Taxus baccata, 19 : 72; 23: Plate XV, 123, 128; 26: Plate III, 6; 29: Plate XXXVII, 139 ‘Adpressa Fowle’, 29: Plate III, 7, 15, 16 ‘Nutans’, 28 : 24 ‘Pygmaea’,18: 24 stricta,13: Plate X, 121 vars. 14: 19 — canadensis stricta, 17: 30 — , clones, sexes of,_23: 120-122 — cuspidata, 17 : 24, 26;^: Plate XXIII, 79 ‘Aurescens’,^: 62; 14: 19; 28: 25 -- ‘Capitata’,17: 24, 26 densa, 16: 62 expansa,^: 62 , fruiting, 10: 83 --nana,ll: 16; 16: 62; 17: 24, 26 77 ARNOLDIA Taxus, fruiting of, 119-122 — hedge, 27: Plate 23 — media, 17: 25 — - hatfieldi, 12: Plate XVII, 82; 17: 25, 26 hicksi, 17: 25, 26 — pests, 19: 4, 5, 9 — spp., 26: Plate XXI, 69, 72 Tea family, 17: 2 Tear-thumb, 18 Teasel, 15: Plate XIII, 73, 76 -, FullersMl: 76 Technique, wounding, 17: Plate XI, 51 Temperatures, minimum, 1^: 25, 26; 17: 13 Tent caterpillar, 19: 3, 8 Ternstroemia, 17: 10 — gymnanthera, 17: 10, 12 — sylvatica, 17: 10 Ternstroem, Christopher, 17: 10 Tetraploid plant, 16: 41 Teucrium chamaedrys, 13: 18; 14: 24; 17: 75 — prostratum, 17: 75 Thalictrum polygamum, 18: 20 Thayer, Rev. Ebenezer, 21: 76, 77 Thea japonica,^: 6 Theaceae, genera of, native to the United States, 17: Plate I, 5 Thomas Jefferson’s Garden Book,_5: 4 Thomas, Joab, 19: 57; 21: 37,64 , Forsythia ‘Karl Sax’, 10: 49-51 , Liquidambar, 21: 59-65 Thorn, Cockspur, 17: 21; 22: 28 — Glastonbury, 22: 30 Thornhill, 1^: 50 Through the Arnold Arboretum, 1: 12 Thuja, 18: 1 — occidentalis,!: 17; 15: 70; 17: 25, 26 ‘Compacta’, 28: 25 ‘Ellwangeriana Aurea’, 28: 25 ‘Ericoides’, 28: 25 ‘Filiformis’, 28: 25 Thuja occidentalis globosa, 17: 30 ‘Hetz Junior’, 28: 25 ‘Hetz Midget’, 28: 25 ‘Holmstrup’, 28: 25 -- ‘Little Gem’, 17: 25, 26 ‘Malonyana’, 28: 25 ‘Minima’, 28: 26 — - ‘Ohlendorffi’ 28: 26 ‘Recurva Nana’, 28: 26 -- ‘Rheingold’, 28: 26 -- ‘Robusta’,17: 25, 26 hedge, 27: Plate VI, 27 spiralis, 17: 25, 26 vars., 14: 19 wagneriana, 17: 25, 30 woodwardi, 17: 25, 30 — orientalis conspicua, 14: 19 ‘Juniperoides’, 28: 26 -- ‘Meldensis’, 28: 26 ‘Minima Glauca’, 28: 26 — pests, 19: 4, 5, 9 -plicata, 12: 19; 14: 55; 17: 25, 26; 19.: 62 Thunbergia laevis, 19: 73 Thuiaria cupressina, 15: 84 Thyme, 22: 53 Thymus serphyllum, 17: 75 Tilia americana, 22: Plate XXIV, 22, 73,74 ampelophylla, 22: 74 dentata, 22: 74 ‘Fastigiata’,^: 4; 22: 70 macrophylla, 22: 74 — amurensis, 22: 74 — caroliniana, 22 : 74 — chinensis,12_: 74 — cordata,_7: Plate V, 31; 14: 55; 17: 22, 26; 22: Plate XXIV, 70, 73 ascidiata, 22: 74 cordifolia, 22 : 74 ‘Greenspire’, 23: 92 -- ‘Morden’, 29: 7, 8 ‘Pyramidalis’, 22: 70 ‘Swedish Upright’, 23: Plate VIII, 114, 115 — dasystyla, 22: 74 78 INDEX TO VOLUMES 1-29 Tilia X euchlora, Plate XXIV, 70,73 — X europaea, Plate XXIV, 73, 74 X pallida, 74 ‘Pendula’, 70 — X flaccida,^: 74 — X flavescens, 74 — floridana, 74 — ‘Handsworth’, 22: 72 — henryana, 74 subglabra, 22: 74 — heterophylla, 74 michauxii, 22: 74 — insularis, 22: 74 — intonsa, 76 — japonica, 74 — X juranyana, 22: 76 — kiusiana, 22: 76 — mandshurica, 22: 76 — maximowicziana, 22: 76 — miqueliana, 22: 76 — X moltkei, 76 — mongolica, 72 — monticola, 76 — ‘Mrs. Stensson’,^: 16 — neglecta, 22: 76 — oliveri, 22: 76 — X orbicularis, 22: 76 — paucicostata, 22: 76 — pests, 4, 6, 9 — petiolaris, Plate XXIII, Plate XXIV, 71-7X — platyphyllos, Plate XXIV, 72 , 73 aurea, 22: 72 begonaefolia, 76 corallina, 76 ‘Fastigiata’, 72 ‘Laciniata’, 22\11 pyramidalis, 14: 55 — - ‘Redmond’, 74 — - ‘Rubra’, 72 tortuosa, 22: 76 vitifolia, 76 — tomentosa, Plate XXIV, Plate XXV, 75 Tilia tomentosa erecta, 72 pendula, 22: 76 — tuan, 76 chinensis, 22: 76 Tilias not recommended, 74 Tilias recommended, 22: 70 Tillandsia recurvata, 1^: 64 — usneoides, 19: 64 Toad-flax, 18 Tomato, spiny, 75 Tomlinson, Bertram, 9: 63 Topiary garden in Hunnewell Arbo- retum, 12: Plate XIV, 69 Torrey, John, 2: 18 Town dump, Reading, Mass., orna- mental planting, Plate X, 47 Tralon, 1_1: 50 Traveller’s Tree, 5: Plate V, 30 Tree Legumes in the Arnold Arbo- retum, The, 19-30 , key to the genera, 30 Tree measurements, 12: 83, 84 -Peonies, 6: 5-8;^: 25-32 -, Silk, 16: 36 — , small, Christmas novelties, 16: Plate XVII, 65, 72 — , strawberry, 19: 69 -Trunks,^: 123-130 --,More, U: 5-12 Trees, among the best common, 12: 19-20 ^ — and shrubs introduced by the Hun- newell Arboretum, 12: 75-83 , Juvenile Characters of The, 18: 1-7 — , Best for Massachusetts Gardens, 12 : 1-20 — , best small for shade, 14: 49-55 — , blown over in hurricane, 14: 40 — , Eighty for the Small Place, 16 : 9-15 — for American Gardens, H: 74 Christmas decorations, Plate XXVII, 119, 128 city conditions, 14: 49-55 the small place, 1^: 9-15 Massachusetts Gardens, Forty- five of the Best, 12: 1-20 79 ARNOLDIA Trees, Five Interesting, IJ.: 71-74 — , heights, 49-55 — in your community, 23: 1, 2 — injured by hurricane, 41-56 — , narrow for narrow streets, H : 48 , upright habit, 1^: 14 — , ornamental, 7 : 24 , small, demonstration plot, list- ed, 16: Plate IV, 10-14 — , small, for city streets, 11: 41-48 , ornamental flowers, 16: 14 , ornamental fruits, 16: 14 , outstanding autumn color, 16: 15 — street, trial plot, 108 trees listed according to row and number in plot,^: 2-7 — that crack easily, 14: 48 — , unusual, a list of some at Drop- more, 7: 37 — , unusually pest free, 14: 49-55 — with interesting bark, 1^: 49-55 ornamental flowers, 14: 49-55 ornamental fruits, 14: 49-55 Trifolium hybridum, 50 — pratense, 22: 50 — repens, 22: 50 Trip Through the Arboretum During Lilac Time, A, 8: 21-24 Trunks, tree, 123-130;^: 5-12 Tsuga, 3: 58 — canadensis, 3: Fig. 2 (a), (c), 58, 59; 6: 52, 54, 56;14: 55; IJj. 63, 71; 17: 25, 26; Plate XIX, 48- 50; 6; Plate XXXIX, 143 ‘Alba Spicata’, 6: 58 and its variants, 100-102 atrovirens, 101 ‘Cinnamomea’, 26 — - ‘Cole’, 26 compacta, 17: 25, 26;^: 101 ‘Dwarf Whitetip’, 27 fastigiata, 23: 101 ‘Greenspray’, 92 hedge, Plate IV, 25 ‘Jacqueline Verkade’, 8 jenkinsii, 6: 58 Tsuga canadensis macrophylla, 23: 101 ~ minuta, 6: 58 -- ‘Nana’,^: 27 ‘Pendula’, 6: Plate XI, 11, 56, 57; 11: 18;^: 101 --‘Rockland’,^: 92 ‘Verkade Petite’, 8 ‘Verkade Recurved’, 2^: 8 — caroliniana, 3: 59; 6: Plate VIII, 51,58;14: 55;!^: 71;17: 25,26; 28: 6 ‘Arnold Pyramid’, 15: Plate VIII, 50, 51 ~ ‘Compacta’, 1^: 50;^: 27 fastigiata, 6:59 — chinensis, 6:^2 diversifolia, 3: 58; 6: Plate IX, 53; 9: 4; 11: Plate IV, 15, 18; Plate IV, 6, 7 — dumosa, 6:52 — formosana, 6:52 — heterophylla, 3: 59; 6: 54; Plate IV, 7 — mertensiana, 3: 59; 6: Plate X, 54, 55 — pests, 1^: 5, 9 — sieboldii, 3: Fig. 2 (b), 58; 6: 52 — yunnanensis, 6:52 Tucker, Elizabeth, 80 Tucker, Ethelyn, translator of A. Rehder’s “On the history of the introduction of woody plants into North America,” 6: 13-23 Tulip-tree, American, 16: 24 Tulipa, International Registration Authority,^: 87 Tupelo, 16: 72 Turk’s-cap-lily, 18: Plate IV, 20, 21 Twiners, 53-55 Two Months of Azalea Bloom, 13_: 29-35 Types of Arboretums, 72-74 Typha angustifolia, 15: 74 — latifolia, 1^: 74; 1^: 20 Ulex europaeus, 5: 78 80 INDEX TO VOLUMES 1-29 Ulmus alata, 1: 65, 67, 78; 1_1: 79, 81,90 — americana, 1: 65, 66, 67, 80; H: 79-81, 92;^: Plate XIII, 71;^: 46 ‘ascendens’, 1: 66; 80; 48 ‘Augustine’, 11: 80; 49 ‘columnaris’, 1: 66; 11: Plate XXI, 80, 90;^: 53 - - ‘Lake City’, 1: 66; 11: 80; 64 - - ‘Moline’, 1: 66; 11: 80; 67 pendula, 1: 66; 11: 80; 'M: 69 ‘Princeton’, 1: 66; 11: 80; 71 — campestris, 1: 70, 73, 74; H: 84, 86 — carpinifolia, 1: 72, 73, 80; 84, 86, 92;^: 46 cornubiensis, 1: 74; 11: 86; 53 - - dampieri, 1: 74; 11: S7-,U: 54 koopmanni, 1: Plate X, 74, 75; U: 87;^: 64 pendula, 1: 74; 11: 86 propendens, 1^: 74; H: 87; 71 sarniensis, 1: 74; 9: 4; 11: 87; U: 46, 73 suberosa, 1: 74, 78; y_: 87, 90; U: 75 umbraculifera, 1: Plate X, 74, 75; U: 87;^: 76 variegata, 1: 74; 11: 86; 19; 24: 76, 77 ~ webbiana, 1: 74; H: 86; 'M: 79 - - wredi, 1: 74; 11: 87; 14: 19; U: 79, 80 - crassifolia, 1: 67, 77, 78; 11: 81, 90 — X elegantissima, 24: 46, 56 — X elegantissima ‘Jacqueline Hil- lier’, 66 — foliacea, 1: 73; 11: 86 - - wheatleyi, 1: 74; 11: 87; M: 79 Ulmus fulva, U 65, 66, 80; U: 79, 80, 93 - glabra, 1: 72, 76, 78, 80; 11: 84, 87, 89, 92;^: 46 atropurpurea, 1: 76; IJ.: 89; U: 49 camperdowni, 1: 76; IJ.: 87; 52 - - crispa, 1: 77; 11: 89; 54 exoniensis, 1: 76; H: 89; M: 57 ~ monstrosa, 1: 76; 11: 89 67 nana, 1: 76; H: 89;^: 68 - - pendula, 1: 7~6; 11: 69, 70 purpurea, 1: 76; H: 89; 71, 72 - hollandica, 1: 72, 80; 11: 84, 92; 46 - - ‘belgica’, 1: 73; 11: 86; U: 50 --‘Klemmer’, 1: 73; 11: 86; M: 63 ‘major’, 1: 72, 73; H: 85, 86; 65 - - ‘pendula’, 1 : 73 ; U : 86; 69, 70 - - ‘superba’, 1: 73; U: 86; U: 75 - - vegeta, 1: 73; U: 86; M: 77 — , International Registration Au- thority, 87 - japonica, 1: 70, 77, 78, 80; 7: 32; 11: 83, 90; 92, 93 - laciniata, 1: 70, 78; H: 83, 92 - laevis, 1: Plate IX, 70, 71, 73, 77, 80; 11: 84, 90, 93; 24: 46 - montana, 1: 7 6; 11: 87 - - fastigiata, 1: 76; 11: 89; 2A: 57 - nitens, V. 7 3 ; IJ. : 86 - parvifolia, 1 : 67, 68, 70, 78; 7: Plate X, 63; 8: Plate XVI, 53, 62; 11: 81, 83, 92; 17: 32; 18: Plate XIV, 59;23: 123;^: 46 sempervirens, 11: Plate XIX, 85; 24: 74 - pedunculata, 1: 72; 11: 84 - pests, 19: 2-6, 9 81 ARNOLDIA Ulmus plod, 1: 70, 72, 77, 80; y.: 84, 90, 92 — procera, 1: 70, 73, 77, 78, 80; 11: 84, 86, 90,93;^: 46 — - ‘aurea,’ 1: 72; U: 84; 49 australis, 1: 72; H: 84; 50 marginata, 1: 72; 11: 84; 'M: 66 myrtifolia, 1: 72; H: 84; 67, 68 purpurascens, U 72; H: 84; 24: 71 van houttei, 1: 72; H: 84; 76 - _ _ viminalis, 1: 72; H: 84; 77, 78 — pumila, 1: 68, 70, 78; 7: 32; IJ^: 81, 83, 92;]^: Plate X, 50; 17: 32;^: 46 — racemosa, 1: 67 ; y: 81 — , Registration of Cultivar Names in, U: 41-80 — rubra, y-: 46 — X sarniensis, 24: 46 -scabra, 1: 76; 7: 32; U: 87 — serotina, 1: 67, 77, 78; y : 81, 90 — thomasi, 1: Plate VIII, 67, 69, 77, 78; y: 81, 90, 92 — X vegata, 46, 77 — X viminalis y-: 46, 77, 78 Umbrella Pine, 8: 10 Understocks for dwarfing trees, 73-77 ~ United States Department of Agri- culture, Bureau of Entomology, 7: 22 U.S. Plant Introduction Garden, Md., 12: 48 Unsatisfactory ground covers, 87 plants which have proved, 23: 14- 16 — Upsala Botanic Garden, 7: 30 Urtica dioica, 1^: 18 Use of auxins in the rooting of woody cuttings, 39 Vaccinium angustifolium, 4: 6 laevifolium, 14: 24 Vaccinium corymbosum 2: 29-32; 8: 25-28 , horticultural varieties offered by growers, 2:32 , northern growers selling, 2: 31 — ovatum, y : 67 — vacillans, 4: 6 — vitis-idaea, y : 7 5 majus, y : 75 — - minus, 17: Plate XVI, 71, 75 Variegated foliage, 2: 60, 61 Variety, definition of, 3: 9 Vasseur, Louis, 2: 50; 3: 24 Vegetables, Planting, 3: 1-7 dates, 3 : 2 information, 3: 4, 5 Veitch Memorial Gold Medal, 5:3; 6: 28;^: 3 pp. following p. 8 Verbascum thapsus, 54 Verbena hastata, y: Plate V, 20, 23 Veronica officinalis, }A: 24 Vervain, Blue, IS: Plate V, 20, 23 Vetch, Tufted, y: 52 Virburnum acerifolium, 19: 50, 52 — , Arrowwood, y : 50 — bodnan tense, y: 56 — burkwoodii, 19: 48, 52 — carlcephalum, y: 48, 52 — carlesii, 7: 39; y: 48, 52 compacta, y: 56; y: 16 — cassinoides, 19: 52; y: Plate XXIV, 81 ~ ~ nanum, y : 56 — , chart, 5: 60, 61 — chenaultii, y : 56 — , Chinese, 16: 49 — dentatum, 5: Plate IV, 16; 17: 22, 26; 19: 50 — dilatatum, IV. 18; 19j 48-50 xanthocarpum, 7: 58; 8: Plate XIX, 61, 62; 9: 4; 19: 50 — fragrans, 2: 36; 4: 18; 7: 26; 8: 10, 62; 19: 52, 69 ‘Bowles’, 19: 56 compactum, 19: 56 nanum, 19: 56 — hupehense, y-: 27 82 INDEX TO VOLUMES 1-29 Viburnum, International Registra- tion Authority, 87 — juddii, 19: 48, 52 — lantana,_5: Plate XI, 59; 17: 32; 19: 50 rugosum, 1^: 52 — lantanoides, 19: 50, 52 — , Leatherleaf, 17: 76 — lentago, 19: 49, 52 — lobophyllum, 14: 27; 16: Plate XIII, 47, 49 — opulus, 19: 49, 50 ‘Compactum’, 19: 50, 52; 29: 16 nanum, 17: 32; 19.: 52 — - ‘Notcutt’s Variety’, 16: 27; 19: 56 roseum,_5: Plate XII, 62; 19: 49 xanthocarpum,_8: 63;_9^: 4; 19: 50 — pests, 19: 5, 9, 56 — plicatum 'Lanarth’, 19: 54 mariesii, 19: Plate VII, '49, 51, 54 roseum, 19^: Plate VIII, 49, 53, 54 tomentosum, 19: 49 varieties, 19: 50 — prunifolium, 14: 27; 17: 22, 26; 19: 52 hedge,^: Plate III, 24 — rhytidophyllum, 47: Plate XV, 57, 72 — rhytidophylloides, 18: 52 — rufidulum, 19: 52 — sargenti, 17: 22, 32; 19: 49 flavum,^: 53; 50 — setigerum aurantiacum,^: Plate XIX, 61, 63;!?: 50 — sieboldii, 11: Plate II, 13, 18; 19: 49, 50, 52;^: Plate XXIV, 81 reticulatum, 19: 52 — , Snowball, Chinese, 19: 49 — , Snowball, European, 19: 49 — , Snowball, Japanese, 19: 49 — tomentosum, H: 20 ‘Lanarth’, 16: 27 Viburnum tomentosum mariesii, 10 : Plate X, 44; 16: 27 — sterile, 5: Plate XII, 62 — trilobum, 1^: 49, 50 compactum, 19^: 50, 52 ‘Pink Flowered Form’, 19: 56 — veitchii, 19^: 50 — wrightii, 50 hessei, 19: 50, 54 Viburnums, 14: 10; 19: 47-56 — , autumn color,_l: 63 — , for flowers, 19: 47-49 — , for foliage, 19: 52 -, for fruits, 19: 50, 52 — , for habit, 19: 52 — , for shade, 19^: 52 — , landscape use,_5j 63 — , northern U.S., for the, ^ 57-63 — , not recommended, 19: 54, 56 — , order of bloom, 19: 49, 50 — , plants attracting birds, ^ 58 — , valued for flowers, _1: 57 Vicia cracca,^: 52 Vinca, Annual, 4^ 57 — minor, 14: 24; 17: 76 ‘Bowles Variety’, 17: 76 Vines, Available Rapid Growing, for the United States, 4; 45-64 — , chart, j 4£ 58-64 — , climbing by means of tendrils or twining leaflets, 13: 4 clinging, JJ: 4 — , for the central United States, 4: 48 ~ — , for coastal area of southern and southeastern United States, j4: 5 3 — , for colorful fruits, 13j: 4 — , for different purposes, H: 4 — , for extreme southern part of Florida,jl: 56 — , for eastern and northeastern Uni- ted States,^ 47 — , for extreme southern Texas and southern Florida, _4^ 55 — , for flowers, 13: 4 — , for the Great Plains area, 4: 40 — , for ground covers, 13:5 83 ARNOLDIA Vines, for the north central United States, ^ 48 — , for the northwest Pacific coast, ^ 50 — , for southern California, ^52 — , for southwest Texas, semi-arid area, 4:53 — , frost resistant in San Francisco area, 51 — , hardiness note, JJ: 7 — , Some of the Best, and Ground Covers for Massachusetts Gardens, li: 1-19 — , (Some Ways Plants Climb), 28: Plate XVIII, Plate XIX, Plate XX, Plate XXI, Plate XXII, Plate XXIII, 53-67 — , twining, 13: 4 — , withstanding dry soil conditions, 13: 4 — , withstanding shade, H : 4 Viola odorata, 22: 54 Violet, Sweet, 22: 54 Viscum,19: 73, 74 - album, 15: 71; 19: 69; 26: Plate III, 6; 29: 69-72 — laxum, 19: 72 Visit the Arboretum in winter, 16 : 60 Visqueen, 11: 50 Vitafilm, JT : 49 Vitis pests, ^9: 6, 9 Wagenknecht, Burdette L., J^: 39; 21: 28, 50 , Christmas Plants around the World, 19: 59-77 , Lilacs of New England, The, 19: 23-30 , Registration Lists of Cultivar Names in the Genus Pieris, D. Don, 21: 47-50 , Registration Lists of Culti- var Names in Gleditsia, L., 21: 31-34 , Tree Legumes in the Arnold Arboretum, The, 21: 19-30 Walker, E. H.,l_: 40 Walnut, Black, Ij Plate VI, 50, 52, 53; 2.: 11; 12: Plate X, 26-29; 16: 42 — , — , and horticultural varieties, 12: 26-28 —, Japanese, 1_: 54; 12r. 30 — , Persian, 1_: 52, 54;^ 12 — , — , and horticultural varieties, 12j 22, 28 Walter, Nathaniel, 21: 78 Walter, Nehemiah, 21: 76, 78 Walter Street “Berrying” Ground, The,^: 75-82 Wang,T.,^ 1,2 Waring Blender, 1^: 48 Washburn, Richard H., Alaskan Ornamentals and Fruits, 2^: 9-12 Washington, University of, green- house,_5j Plate VII, 41 Washingtonia robusta, 19: 67 Watercress, 22: 55 Water Fairy Flower, 2: 2 Watch the Elms,^: 17-23 Waxflower,^ 8 Wayside Gardens, 21: 36 Weather, 1^ 1 — phenomena, March 1941, L 33- 34 Weavers, 2^: 64 Weber, Claude, Cultivar s in the Genus Chaenomeles, 17-75 , Horticulture on Postage Stamps, 18: 29-38 Weed killers, 10: 61-71; 5, 6 Weeds of lawn and garden, ^56 Weeks, Edward, Our Disappearing Opportunities, 27 : 57-60 Weeping Willow, 1^: 45 , leafing dates, 1^: 42; 12j 46 Weevils, 13: 50 Weigela ‘Bouquet Rose’,^ 63 — ‘Centennial’, 27: 66; 29^ 8 — , Check-list of Cultivar Names in, 25: 49-69 — florida variegata, H; 19 — ‘Gracieux’, 8: 63 84 INDEX TO VOLUMES 1-29 Weigela ‘Othello’,^: 4 Weigelas, 14: 10 Weld, Lt. Daniel, 21: 80 Weld, Hannah,^: 80 Weld, Joseph, 76, 80 Weld, Susanna,^: 80 Weston, Hillcrest Gardens,^: 53- 67 WGBH-TV (Channel 2) Auction,^: 28 Wheeler, Wilfred M.,_7: 13;^: 53, 63 ; 22: 46 , The Holly Man, M: Plate XIV, 65-72 White Flowering Rhodora, 3, 4 White, Miss Elizabeth,^: 30;^ 25 White, Mrs. Wilfrid 0.,_9: 63 White fruits, woody plants with, 3: 48 — Pine weevil, 19: 2, 8 Widdringtonia, 19: 74 Wilford, B. W.,1.: 21 Williams, Robert G.,_^: 3 ; 7: 2 , Arnold Arboretum Spray Schedule, 29: 1-10 , and Alfred J. Fordham, Ar- nold Arboretum Spray Sched- ule, the New Spray Materials, 23: 69-84 Williamsburg, Va., Plants used prior to 1750, 22^ 75 Willow, Laurel, 27: 22 --leaf beetle,!: 39; 19: 4, 9 — , Purple, 16: 27 Wilson, E. H., 6: 46;! 10, 11, 18;!1: 35 Wilson Pearlbush, 28: Plate II, 2, 5 Wind damage (hurricane), 14: 46, 47 Winter damage, 21.: 1 3 — Foliage Color of Narrow-leaved Evergreens,! 17-20 — hardening trends, 26: Plate XVI, 58 — , hardiness map, 3_: 53 , modifications of, 2Z- 7 of plants of various phenological groups, 22: 4 Winter hardiness of species from Soviet Middle Asia, 27: 5, 6 of species introduced from Japanese-Chinese Subregion, 27: 3-5 - hardy, not, useful even though, 26: 61-64 -injury,! 34, 37, 38; 5: 2; 27: 13- 16, 37-41 in the Arnold Arboretum, 1942-1943,! 25-36 in ‘Fedora’ Azalea, 26: Plate XVII, 59 not severe, 21: 43-46 , Rhododendron, ! 17-20 to flower buds only during win- ter, 1942-1943,! 34 — , plants killed to ground in 1942- 1943,! 28-30 — , plants partially injured in 1942- ^ 43,! 30-34 — , plants uninjured during winter 1942-1943,! 35-36 Winterberry,! Plate II, 11; JJ: 67, 78 Wintercreeper, 17: 66 Wintergreen, 15: 68;27: 66 Wistar, Caspar,! 18 Wister, JohnC.,! 33;! 8; 23: 83 , Supplementary Registration List of Cultivar Names in Syringa, L., 23: 77-83 , Tree Peony,! Wisteria ‘Beni-Fugi’, 9: 26 - floribunda,! 18 - - alba,! 24 carnea,! 26 macrobotrys, 9: Plate IV, Plate V, 25, 26;23: 10 macrostachya, 9: 23 rosea,! 19;21' H violacea plena, 9: 19 - formosa,! 18 - frutescens, 9: 18 - ‘Geisha’,_9: 27 - ‘Isai’,! 17 - ‘Jako’,! 26 - ‘Kuchi Beni’,! 24 85 ARNOLDIA Wisteria ‘Kyushaku’,^: 23 — ‘Longissima’,^: 24 — ‘Longissima alba’,^: 24 — macrostachya,^: 18 - ‘Mrs. McCullagh’,_9: 27 — , Murasaki Noda’,_9: 27 — ‘Naga Noda’, 9: 27 — ‘Rosecraft’,^: 19 — ‘Royal Purple’,^: 27 — ‘Russelliana’,^: 27 — ‘Sekine’s Blue’,^: 27 — ‘Shiro Noda’,_^: 24 — ‘Sierra Madre’,^: 28 — sinensis, 9: Plate IV, 18, 20 — - alba,_^ 24 — spp.,^: 72 — ‘Ushi Jima’, 9_: 27 — venusta, 9:18 violacea,_^: 28 Wisterias, 9: 17-28 — , culture of,^ 17, 18 — , flower colors of,^ 24-28 — , fragrance of, 9: 22 — , identifications of, 9: 21, 22 — , introduction of, 9: 18, 19 — , length of clusters, 9: 23 — , order of bloom,^ 22 — , twining of,^: 19, 21 Witch-hazel, Chinese, 16: Plate I, 2, 3 — , native, 16: 72 Witches’-brooms, Blueberry, High- bush,^: Plate VII, 31 , cones,^: Plate XV, 41 , dwarf conifers from,^: 29-50 — -, Pitch Pine,^: Plate XI, 34, 36 , progeny, 27 : Plate XIX, 48, 49 — -, Red Pine,^: Plate XI, 34, 36 , seeds and seedlings, 23: Plate XVI, Plate XVII, Plate XVIII, 42,43,45,47 — -, Spruce,^: Plate VIII, 30, 32, 44 , White Pine,^: Plate IX, Plate XII, Plate XIII, Plate XIV, 33, 37, 39,40 Wohlert, A. E.,^: 23, 26 Wood and the Trees, The, A Bio- graphy of Augustine Henry, by Sheila Pirn (Book Review) 26 : 47 Wood, Carroll, E., Jr., 1^: 32 , Plant Collecting in the Southeastern United States, 19: 45,46 , Some Cultivated Relatives of the Camellia, IT: 1-12 and Richard A. Howard, Christmas Plants in the Boston Area, 15: 61-84 Woodbine, Chinese , 22: 67 Wooden display label, 24: 10, 12 Woody cuttings, rooting, I^: 33-38 — Plant Seed Manual, JJ: 41 — Plants, Blooming Dates of, 41- 56 , distributed,^ 9-12; 16: 33-51 , History of Introductions into North America, 6: 13-23 , injured last year, list of, Jj 38 , killed to the ground, list of,l_: 38 , observed after hurricane, 21: 70-73 , propagations of, by seed, 20: 33-40 , Seeds of,H: 41-60 , sexes separate, 10: 81-85 , sources for rare, 1: 5-19, 21-28 , used in Colonial Williamsburg, 11 : 75-78 with autumn color, 4; 41-43; 12: 56, 58 with interesting bark in winter, 2: 61-68; 18: 57-64 with no autumn color, 4: 43; 12: 58, 59 World of Flowers, by H. Reisigle (Book Review) U: 46 Worms, canker, J^: 39 — , cut,J^ 39-40 Wreath, Arctostaphylos uva-ursi, 16: Plate XXI, 71,72 — , Boxwood, 16: Plate XXI, 71 86 INDEX TO VOLUMES 1-29 Wreath, cone, making of, Plate XIX, Plate XX, 61,64-69 — , evergreen foliage, making of, 61-64, 72 — making materials, 5 3 — plants, 61 — White Pine, 16: Plate XVI, 63 Wyman, Donald, Supplement Wyman, Donald, and Harrison L. Flint, Plant Hardiness Zone Maps, 27: 53-56 Wyman, Florence, 29: 111-133 and Donald Wyman, Christmas Decorations from Woody Plant Materials, 1 ^: 61-72;^: 111- 133 Xanthorhiza simplicissima, 13: Plate VI, 17, 18; 14: 24 Yarrow, 22: 52 Yellow fruits, woody plants with, 3: 47-48 Yellow labels, 17: 33 Yew, 16: 62, 64, 72 -, Hatfield, 17: 25 -, Hicks, 17: 25 — , Japanese, FTj 24 , dwarf, 17.: 24 Yews, fruiting of, 23: 119-122 — , in the Arnold Arboretum, 23 : 120-122 — , in the Secrest Arboretum, 23 : 120-122 — , 228, listed alphabetically accord- ing to sex, 13: 120-122 Yorkshire Fog, 12: 52 Young, Robert A., Bamboos for Northern Gardens,^: 29-42 Youngken, Heber, W., Medicinal Plant Garden of the Massachusetts College of Pharmacy, 2: 37-40 Yucca, 15: Plate XIV, 77, 78 Zelkova serrata,^: Plate V, 8 — sinica,16: Plate V, 8 87 !