This name is a synonym of Begonia sinuata Wall. ex Meisn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361279) with original publication details: J. Straits Branch Roy. Asiat. Soc. 54: 43 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104426-1.
This name was in version 1 of The Plant List, record kew-361279.