Tetramicra is a genus of flowering plants in the orchid family, Orchidaceae, native to the West Indies. Tetramicra canaliculata has also been reported from southern Florida, but these reports have been challenged. 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.

...