This name is a synonym of Tapinanthus forbesii (Sprague) Wiens.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19100763) with original publication details: Fl. Cap. 5(2): 118 1915.
This name was in version 1 of The Plant List, record tro-19100763, and has not been changed.