This name is a synonym of Erica plukenetii subsp. penicillata (Andrews) E.G.H.Oliv. & I.M.Oliv..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Col. Engr. Heaths 2: t. 116 1805.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:329321-1.
This name was in version 1 of The Plant List, record kew-2794073, and has not been changed.