This name is a synonym of Achatocarpus praecox f. spinulosus (Griseb.) Hauman.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Abh. Königl. Ges. Wiss. Göttingen 24: 32 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:58639-1.
This name was in version 1 of The Plant List, record kew-2617250, and has not been changed.