This name is a synonym of Begonia stipulacea Willd..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361445) with original publication details: Enum. Hort. Berol. Alt. 2: 396 1822.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104562-1.
This name was in version 1 of The Plant List, record kew-361445, and has not been changed.