This name is a synonym of Begonia aspleniifolia Hook.f. ex A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361587) with original publication details: Adansonia n.s., 12: 363 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104669-1.
This name was in version 1 of The Plant List, record kew-361587, and has not been changed.