This name is a synonym of Strychnos spinosa Lam..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19000174) with original publication details: Bot. Jahrb. Syst. 28: 123 1899.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:547098-1.
This name was in version 1 of The Plant List, record tro-19000174.