This name is a synonym of Begonia pringlei S.Watson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362036) with original publication details: Bot. Jahrb. Syst. 78: 183 1959.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30687-2.
This name was in version 1 of The Plant List, record kew-362036, and has not been changed.