This name is a synonym of Begonia ionophylla Irmsch..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as a spelling variant (record 361944) with original publication details: Nat. Pflanzenfam. ed. 2 21: 577 1925.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:104913-1.
This name was in version 1 of The Plant List, record kew-361944, and has not been changed.