This name is a synonym of Rauvolfia caffra Sond..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 452117) with original publication details: Cat. Afr. Pl. 1: 665 1898.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Rauvolfia caffra in version 1 of The Plant List.