This name is a synonym of Dactylorhiza incarnata subsp. gemmana (Pugsley) P.D.Sell.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 142747) with original publication details: J. Linn. Soc., Bot. 49: 578 1935.
This name was in version 1 of The Plant List, record kew-142747, and has not been changed.