This name is a synonym of Platostoma tenellum (Benth.) A.J.Paton & Hedge.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 137104) with original publication details: Labiat. Gen. Spec. 12 1832.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:453129-1.
This name was in version 1 of The Plant List, record kew-137104.