This name is a synonym of Dactylorhiza majalis (Rchb.) P.F.Hunt & Summerh..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55453) with original publication details: Preslia 54: 290 1982.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:916931-1.
This name was in version 1 of The Plant List, record kew-55453.