This name is a synonym of Dactylorhiza maculata subsp. elodes (Griseb.) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55432) with original publication details: Ann. Univ. Sci. Budapest. Rolando Eötvös, Sect. Biol. 3: 349 1960.
This name was in version 1 of The Plant List, record kew-55432.