This name is a synonym of Cephalanthera austiniae (A.Gray) A.Heller.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 39287) with original publication details: Proc. Amer. Acad. Arts 12: 83 1877.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:56717-2.
This name was in version 1 of The Plant List, record kew-39287, and has not been changed.