This name is a synonym of Plectranthus punctatus subsp. edulis (Vatke) A.J.Paton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 45850) with original publication details: Bot. Jahrb. Syst. 19: 218 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:445906-1.
This name was in version 1 of The Plant List, record kew-45850.