This name is a synonym of Mentha × rotundifolia (L.) Huds..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 350560) with original publication details: Bull. Herb. Boissier 4: 676 1896.
This name was in version 1 of The Plant List, record kew-350560.