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 67748) with original publication details: Enum. Syst. Pl. 30 1760.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:631304-1.
This name was in version 1 of The Plant List, record kew-67748, and has not been changed.