This name is a synonym of Afrocanthium pseudoverticillatum (S.Moore) Lantz.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 33810) with original publication details: Bull. Misc. Inform. Kew 1932: 377 1932.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:745618-1.
This name was in version 1 of The Plant List, record kew-33810, and has not been changed.