⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-36662, with some changes.
This name is a synonym of Cephalanthera longifolia (L.) Fritsch.
The record derives from WCSP which reports it as a synonym (record 36662) with original publication details: Repert. Spec. Nov. Regni Veg. Beih. 4: 58 1919.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:622390-1.