This name is a synonym of Begonia loranthoides subsp. rhopalocarpa (Warb.) J.J.de Wilde.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362838) with original publication details: Bot. Jahrb. Syst. 22: 40 1895.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:105583-1.
This name was in version 1 of The Plant List, record kew-362838, and has not been changed.