This name is a synonym of Gastrorchis humblotii var. rubra (Bosser) Bosser & P.J.Cribb.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 151025) with original publication details: Adansonia n.s., 11: 526 1971.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:887799-1.
This name was in version 1 of The Plant List, record kew-151025, and has not been changed.