This name is a synonym of Allamanda martii Müll.Arg..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 329653) with original publication details: Fl. Bras. 6(1): 13 1860.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8534-2.
This name was in version 1 of The Plant List, record kew-329653, and has not been changed.