This name is a synonym of Dactylorhiza praetermissa (Druce) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55529) with original publication details: Nom. Nov. Gen. Dactylorhiza 5 1962.
This name was in version 1 of The Plant List, record kew-55529.