This name is a synonym of Grandiphyllum divaricatum (Lindl.) Docha Neto.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 336174) with original publication details: Arch. Bot. São Paulo 1: 290 1926.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:174256-2.
This name was in version 1 of The Plant List, record kew-336174.