This name is a synonym of Oncidium altissimum (Jacq.) Sw..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 139413) with original publication details: Allg. Gartenzeitung 10: 309 1842.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:647096-1.
This name was in version 1 of The Plant List, record kew-139413, and has not been changed.