This name is a synonym of Begonia cucullata var. hookeri (A.DC.) L.B.Sm. & B.G.Schub..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361878) with original publication details: Hort. Brit. ed. 2: 437 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30639-2.
This name was in version 1 of The Plant List, record kew-361878.