This name is a synonym of Cypripedium × andrewsii Fuller.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 54163) with original publication details: Canad. J. Bot. 31: 660 1953.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:625803-1.
This name was in version 1 of The Plant List, record kew-54163, and has not been changed.