This name is a synonym of Begonia cucullata var. spatulata (Lodd.) Golding.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361374) with original publication details: Repert. Bot. Syst. 2: 214 1843.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104504-1.
This name was in version 1 of The Plant List, record kew-361374, and has not been changed.