This name is a synonym of Begonia nelumbiifolia Cham. & Schltdl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 361417) with original publication details: Hort. Universel 5: 355 1844.
This name was in version 1 of The Plant List, record kew-361417.