This name is a synonym of Riencourtia pedunculosa (Rich.) Pruski.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B36774DC-0A7D-4F11-87FF-10F41E531C3E) with original publication details: Actes Soc. Hist. Nat. Paris 1 112 1792.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317027-2.
This name was in version 1 of The Plant List, record gcc-9066, and has not been changed.