This name is a synonym of Prosthechea prismatocarpa (Rchb.f.) W.E.Higgins.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 69316) with original publication details: Bot. Zeitung (Berlin) 10: 729 1852.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:92032-2.
This name was in version 1 of The Plant List, record kew-69316, and has not been changed.