Rodr.-Flores & L.E.Skog 2008 - RodrÃguez-Flores CI, Skog LE (2008) Revision of Corytoplectus Oerst. (Gesneriaceae). Selbyana 29(1): 92-124. Retrieved from http://www.jstor.org/stable/41760319
There is no corrections for Corytoplectus speciosus var. orbicularis yet.