Pachyanthus
corymbiferous (Naudin) Cogniaux, a species from the Andes of Colombia, was not included in this analysis because it has been already shown that it is more closely related to Huilaea Gleason in the tribe Blakeeae, and should be considered as Chalybea
corymbiferous Naudin, as originally described (Judd & Skean, 1991; Wurdack, 1988; Morales & Gonzalez, 2005).