This name is a synonym of Begonia subvillosa Klotzsch.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362967) with original publication details: Gartenflora 28: 321 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:105689-1.
This name was in version 1 of The Plant List, record kew-362967, and has not been changed.