This name is a synonym of Begonia convolvulacea (Klotzsch) A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 361697) with original publication details: Fl. Flumin. 10: t. 51 1831.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:315567-2.
This name was in version 1 of The Plant List, record kew-361697.