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 54417) with original publication details: Proc. Biol. Soc. Wash. 14: 178 1900.
This name was in version 1 of The Plant List, record kew-54417.