This name is a synonym of Mentha spicata subsp. condensata (Briq.) Greuter & Burdet.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 350726) with original publication details: Nat. Pflanzenfam. 4(3a): 322 1897.
This name was in version 1 of The Plant List, record kew-350726.