This name is a synonym of Rosenbergiodendron longiflorum (Ruiz & Pav.) Fagerl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 19900) with original publication details: Mem. New York Bot. Gard. 7: 374 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:29748-2.
This name was in version 1 of The Plant List, record kew-19900, and has not been changed.