This name is a synonym of Pergularia daemia (Forssk.) Chiov..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Mem. Wern. Nat. Hist. Soc. 1: 50 1809.
This name was in version 1 of The Plant List, record kew-2755296.