This name is a synonym of Begonia heracleifolia Cham. & Schltdl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 370257) with original publication details: Abh. Königl. Akad. Wiss. Berlin 1854: 215 1855.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:110571-2.
This name was in version 1 of The Plant List, record kew-370257.