This name is a synonym of Rudgea sclerocalyx (Müll.Arg.) Zappi.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 45503) with original publication details: Syst. Veg. 5: 201 1819.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:747082-1.
This name was in version 1 of The Plant List, record kew-45503.