This name is a synonym of Dactylorhiza fuchsii subsp. okellyi (Druce) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 142824) with original publication details: Irish Naturalist 1909: 211 1909.
This name was in version 1 of The Plant List, record kew-142824, and has not been changed.