This name is a synonym of Caperonia palustris (L.) A.St.-Hil..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 15138) with original publication details: Revis. Gen. Pl. 2: 593 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:19007-2.
This name was in version 1 of The Plant List, record kew-15138.