What is "nidema"

Nidema is a genus of flowering plants from the orchid family, Orchidaceae. It contains two known species, both native to the tropical Western Hemisphere.

• Nidema boothii (Lindl.) Schltr. - Mexico, Central America, Bahamas
• Nidema ottonis (Rchb.f.) Britton & Millsp. - Central America, Bahamas, Greater Antilles, Trinidad, Venezuela, Guyana, Colombia, Ecuador, Peru, northern Brazil