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 190702) with original publication details: Fl. Carpat. Princ. 291 1814.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:657683-1.
This name was in version 1 of The Plant List, record kew-190702.