This name is a synonym of Begonia wrayi Hemsl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362739) with original publication details: Mitt. Inst. Allg. Bot. Hamburg 8: 112 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:105501-1.
This name was in version 1 of The Plant List, record kew-362739, and has not been changed.