This name is a synonym of Stigmaphyllon bonariense (Hook. & Arn.) C.E. Anderson.
The record derives from Tropicos which reports it as a synonym (record 19500516) with original publication details: Fl. Bras. Merid. (quarto ed.) 3: 55 55 1832.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:557539-1.