This name is a synonym of Plectranthus djalonensis (A.Chev.) A.J.Paton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 45919) with original publication details: Bull. Inst. Fondam. Afrique Noire, Sér. A, Sci. Nat. 16: 330 1954.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:445979-1.
This name was in version 1 of The Plant List, record kew-45919.