This name is a synonym of Rossioglossum grande (Lindl.) Garay & G.C.Kenn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 179890) with original publication details: Orchid Digest 40: 142 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:222522-2.
This name was in version 1 of The Plant List, record kew-179890, and has not been changed.