This name is a synonym of Begonia bridgesii A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361376) with original publication details: Bull. Misc. Inform. Kew 1912: 340 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30495-2.
This name was in version 1 of The Plant List, record kew-361376, and has not been changed.