This name is a synonym of Plectranthus linearifolius (J.K.Morton) B.J.Pollard & A.J.Paton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 192876) with original publication details: J. Linn. Soc., Bot. 58: 271 1962.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:459168-1.
This name was in version 1 of The Plant List, record kew-192876, and has not been changed.