A Guyanese species of the Epidendrum nocturnum complex (Orchidaceae) with revolute leaf margins and clarification of the name Epidendrum purpureocaulis

Résumé

During an inventory conducted in 2013, followed by in-depth examinations, an atypical specimen of Epidendrum from the E. nocturnum group was revealed to be new to science. This taxon, which brings to seven the number of species in this group in French Guiana, is described here, illustrated and compared to the closes species. A key to determining these seven species is provided. A brief discussion is provided on the taxon E. carpophorum, described by Barbosa Rodrigues, in relation to the French Guianan populations. A nomenclatural clarification is also provided concerning the name Epidendrum purpureocaulis, taxon of the E. nocturnum group, sometimes incorrectly modified to E. purpureocaule.

Auteurs, date et publication :

Auteurs Aurélien Sambin

Date : 2025