This name is a synonym of Allamanda puberula A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 6179) with original publication details: Fl. Bras. 6(1): 14 1860.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:76491-1.
This name was in version 1 of The Plant List, record kew-6179, and has not been changed.