This name is a synonym of Gesneria leucomalla (Hanst.) Kuntze.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50261344) with original publication details: Linnaea 34: 312 1865.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:382530-1.
This name was in version 1 of The Plant List, record tro-50261344.