This name is a synonym of Cypripedium parviflorum var. pubescens (Willd.) O.W.Knight.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 53951) with original publication details: Bot. Mus. Leafl. 7: 14 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:75347-2.
This name was in version 1 of The Plant List, record kew-53951.