This name is a synonym of Begonia cavaleriei H.Lév..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361536) with original publication details: Bull. Acad. Int. Géogr. Bot. 22: 228 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104635-1.
This name was in version 1 of The Plant List, record kew-361536, and has not been changed.