This name is a synonym of Cephalanthera longifolia (L.) Fritsch.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 343818) with original publication details: J. Eur. Orch. 37: 249 2005.
This name was in version 1 of The Plant List, record kew-343818.