This name is a synonym of Maxillaria platypetala Ruiz & Pav..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23507072) with original publication details: Nomencl. Bot. 1: 268 1821.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:628306-1.
This name was in version 1 of The Plant List, record tro-23507072, and has not been changed.