Eb.Fisch. No year - Fischer E (1989) Contributions of the Flora of Central Africa III: New Species of Lindernia Allioni and Crepidorhopalon E. Fischer (Scrophulariaceae) from Zaire, Burundi and Tanzania. Bulletin Du Jardin Botanique National De Belgique 59: 445-457. doi: 10.2307/3668359.
There is no corrections for Crepidorhopalon manganicolus yet.