This name is a synonym of Neottia convallarioides (Sw.) Rich..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 190563) with original publication details: Nomencl. Bot. 766 1821.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:657588-1.
This name was in version 1 of The Plant List, record kew-190563, and has not been changed.