This name is a synonym of Dactylorhiza praetermissa subsp. osiliensis (Pikner) Kreutz.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 343938) with original publication details: Naturalistes Belges 86(Orchid. 18): 77 2005.
This name was in version 1 of The Plant List, record kew-343938, and has not been changed.