Ames, F.T.Hubb. & C.Schweinf. (Ames) 1934 - Ames O, Hubbard FT, Schweinfurth C (1934) CRITICAL NOTES ON COSTA RICAN ORCHIDS. Botanical Museum Leaflets, Harvard University 3: 37-42. Retrieved from http://www.jstor.org/stable/41762602