Tetramicra is a genus of flowering plants in the orchid family, Orchidaceae, native to the West Indies.Kew World Checklist of Selected Plant FamiliesPridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2006). Epidendroideae (Part One). Genera Orchidacearum 4: 1-672. Oxford University Press, New York, Oxford. Tetramicra canaliculata has also been reported from southern Florida, but these reports have been challenged.McCartney, Chuck. 1997. The Tetramicra Mystery. The Palmetto Spring 1997, pp 12-15. Tetramicra is abbreviated Ttma. in the horticultural trade.
Most species are terrestrial, (the exception being T. malpighiarum) and lacking pseudobulbs (with the exception of T. bulbosa), with rigid, linear, terete or triquetrous leaves and a terminal inflorescence consisting of a slender few- to several-flowered peduncle. Pollinia eight, 4 larger and four smaller.
Species Species accepted as of April 2016:
Tetramicra bulbosa Mansf. (1926) - Hispaniola, Jamaica Tetramicra canaliculata (Aubl.) Urb. (1918) - Florida (?), Hispaniola, Puerto Rico, Trinidad, Lesser Antilles Tetramicra ekmanii Mansf. (1926) - Cuba, Hispaniola Tetramicra malpighiarum J.A.Hern. & M.A.Díaz (2000) - Cuba Tetramicra parviflora Lindl. ex Griseb. (1864) - Bahamas, Cuba, Hispaniola, Jamaica Tetramicra pratensis (Rchb.f.) Rolfe (1889) - Dominican Republic Tetramicra riparia Vale, Sánchez-Abad & L.Navarro (2012)) - Cuba Tetramicra simplex Ames (1923) - Cuba Tetramicra tenera (A.Rich.) Griseb. ex Benth. (1881) - Cuba Tetramicra zanonii Nir (2000) - Dominican Republic
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