This name is a synonym of Begonia kalbreyeri (Oliv.) L.B.Sm. & B.G.Schub..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362001) with original publication details: J. Wash. Acad. Sci. 45: 113 1955.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30680-2.
This name was in version 1 of The Plant List, record kew-362001, and has not been changed.