Acianthera bragae

This tiny orchid plant, also found under the names Acianthera sarracenia and Pleurothallis sarracenia, with its strange, slug-like flowers is from Brazil.  Its flowers are between a half and an inch long (1.5-2 cm) and the succulent leaves somewhat longer.  Actually the plant is named not for a slug, but for a genus of Pitcher Plants, called Sarracenia, which they also resemble.