This name is a synonym of Cephalanthera longifolia (L.) Fritsch.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50238907) with original publication details: Kongl. Vetensk. Acad. Nya Handl. 21: 232 1800.
This name was in version 1 of The Plant List, record tro-50238907.