This name is a synonym of Strychnos angolensis var. latifolia P.A. Duvign..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19000745) with original publication details: Bull. Jard. Bot. État Brux. 5: 50 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:547345-1.
This name was in version 1 of The Plant List, record tro-19000745.