This name is a synonym of Phragmipedium × sedenii (Rchb.f.) Rolfe.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 54322) with original publication details: Gard. Chron. n.s., 9: 366 1878.
This name was in version 1 of The Plant List, record kew-54322.