This name is a synonym of Begonia sutherlandii Hook.f..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361616) with original publication details: Fl. Pl. Africa 21: t. 1233 1956.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104683-1.
This name was in version 1 of The Plant List, record kew-361616.