This name is a synonym of Grammatophyllum rumphianum Miq..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 92268) with original publication details: Xenia Orchid. 2: 16 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:636287-1.
This name was in version 1 of The Plant List, record kew-92268.