This name is a synonym of Phragmipedium × stenophyllum (Rchb.f.) Rolfe.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 190461) with original publication details: Gard. Chron. n.s., 5: 461 1876.
This name was in version 1 of The Plant List, record kew-190461.