This name is a synonym of Cypripedium reginae Walter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 332321) with original publication details: Bull. New York State Mus. Nat. Hist. 243-244: 37 1923.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:75386-2.
This name was in version 1 of The Plant List, record kew-332321.