What is "otostylis"

Otostylis is a genus of flowering plants from the orchid family, Orchidaceae, native to South America and Trinidad.

1. Otostylis alba (Ridl.) Summerh. - Venezuela, Brazil, Guyana
2. Otostylis brachystalix (Rchb.f.) Schltr. - Venezuela, Brazil, Guyana, Trinidad, Colombia, Peru
3. Otostylis lepida (Linden & Rchb.f.) Schltr. - Venezuela, Brazil, Guyana, Suriname
4. Otostylis paludosa (Cogn.) Schltr. - Peru, Mato Grosso