This name is a synonym of Erica unicolor subsp. mutica 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 and as an illegitimate name with original publication details: Col. Engr. Heaths 1: t. 79 1804.
This name was in version 1 of The Plant List, record kew-2792749, and has not been changed.