This name is a synonym of Begonia minicarpa H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 363381) with original publication details: Prodr. 15(1): 383 1864.
This name was in version 1 of The Plant List, record kew-363381, and has not been changed.