This name is a synonym of Phaius grandiflorus (Nadeaud) Govaerts.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 464337) with original publication details: Occas. Pap. Bernice Pauahi Bishop Mus. 9(4): 13 1930.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Phaius tahitensis in version 1 of The Plant List.