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 53875) with original publication details: Gard. Chron. n.s., 11: 748 1879.
This name was in version 1 of The Plant List, record kew-53875.