Nomenclature and taxonomy of Brazilian Gomesa species (Orchidaceae: Oncidiinae) described by Joao Barbosa Rodrigues

摘要

The nomenclature of 15 orchid names described by Joao Barbosa Rodrigues and currently treated in the genus Gomesa (Orchidaceae: Oncidiinae) is reviewed. Thirteen names (Baptistonia echinata, Gomesa sessilis, Oncidium biflorum,O. geraense, O. hydrophilum, O. montanum, O. nitidum, O. odontochilum, O. uliginosum, Ornithophora quadricolor, Rodriguezia eleutherosepala, R. microphyta, Theodorea gomezoides) are lectotypified and the holotype of Oncidium suscephalum is located. Original materials of Oncidium brunnipetalum are likely lost. Seven of the names are considered accepted species, seven are treated as synonyms and one is treated as a name of uncertain application. Regarding names not assigned by Barbosa Rodrigues, a lectotype to Oncidium varicosum and a neotype to Sigmatostalix radicans are herein designated.