This name is a synonym of Stereospermum tetragonum DC..
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 318191) with original publication details: Taxon 27: 553 1978 publ. 1979.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:110775-1.
This name was in version 1 of The Plant List, record kew-318191, and has not been changed.