This name is a synonym of Dactylorhiza insularis (Sommier) Ó.Sánchez & Herrero.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55551) with original publication details: J. Roy. Hort. Soc. 92: 309 1967.
This name was in version 1 of The Plant List, record kew-55551, and has not been changed.