This name is a synonym of Cestrum elegans (Brongn. ex Neumann) Schltdl..
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Proc. Amer. Acad. Arts 35: 571 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:53565-2.
This name was in version 1 of The Plant List, record kew-2713456, and has not been changed.