Auxopus is a genus of the family Orchidaceae. It belongs to the tribe Gastrodieae.
Little is known about the flower structure of members of Gastrodieae, which are saprophytic. Auxopus are leafless and contain inflorescences of flowers with their sepals and petals united.
Auxopus has 4 known species, native to tropical Africa and Madagascar.Kew World Checklist of Selected Plant Families
Auxopus kamerunensis Schltr. - Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Central African Republic, Cameroon, Gabon Auxopus letouzeyi Szlach. - Cameroon Auxopus macranthus Summerh. - Ghana, Ivory Coast, Nigeria, Cameroon, Uganda, Democratic Republic of the Congo Auxopus madagascariensis Schltr. - Madagascar
References
Dressler, Robert L. The Orchids: Natural History and Classification. Cambridge: Harvard University Press, 1981.