This name is a synonym of Begonia quercifolia A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 362122) with original publication details: Leafl. Philipp. Bot. 2: 739 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:105045-1.
This name was in version 1 of The Plant List, record kew-362122, and has not been changed.