This name is a synonym of Plectorrhiza tridentata (Lindl.) Dockrill.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 41983) with original publication details: Edwards's Bot. Reg. 24(Misc.): 33 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:623577-1.
This name was in version 1 of The Plant List, record kew-41983, and has not been changed.