This name is a synonym of Plectranthus alpinus (Vatke) Ryding.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 45949) with original publication details: J. Linn. Soc., Bot. 38: 273 1908.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:446009-1.
This name was in version 1 of The Plant List, record kew-45949.