This name is a synonym of Plectranthus burorum (Chiov.) J.K.Morton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 45883) with original publication details: Bull. Misc. Inform. Kew 1941: 180 1941.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:445942-1.
This name was in version 1 of The Plant List, record kew-45883, and has not been changed.