Botany

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Cycadopsida: vegetative features of seed bearing plants. Cycas and Zamia. Sketched by Gwen in plant anatomy lab 1980 at University of Vermont. Cycads are a type of gymmnosperm that were more numerous during the Jurassic.
Global heating: ancient plants set to reproduce in UK after 60m years
An exotic plant has produced male and female cones outdoors in Britain for what is believed to be the first time in 60m years. Botanists say the event is a sign of global heating.Two cycads (Cycas revoluta), a type of primitive tree that dominated the planet 280m years ago, have produced cones on the
Female cone of Cycas revoluta
Female cone of Cycas revoluta | von tanetahi
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