This name is a synonym of Acianthus caudatus R.Br..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 70115) with original publication details: Encycl. Suppl. 2: 571 1812.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:633169-1.
This name was in version 1 of The Plant List, record kew-70115, and has not been changed.