This name is a synonym of Stisseria conspurcata (Willd.) Kuntze.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 2601910) with original publication details: Syst. Veg. 6: 834 1820.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:99891-1.
This name was in version 1 of The Plant List, record tro-2601910.