This name is a synonym of Prunella vulgaris subsp. lanceolata (W.P.C.Barton) Piper & Beattie.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 165993) with original publication details: Fl. Lit. Inch. 1: 88 1782.
This name was in version 1 of The Plant List, record kew-165993, and has not been changed.