This name is a synonym of Oncidium constrictum (Lindl.) Beer.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 137622) with original publication details: Fol. Orchid. 1: 2 1852.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:172247-2.
This name was in version 1 of The Plant List, record kew-137622.