This name is a synonym of Hypocalymma angustifolium (Endl.) Schauer.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 101510) with original publication details: Edwards's Bot. Reg. 30(Misc.): 27 1844.
This name was in version 1 of The Plant List, record kew-101510.