This name is a synonym of Pachystegia insignis (Hook.f.) Cheeseman.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 628ED9EE-CEB5-450F-BEA5-1E96F4C5BFEE) with original publication details: 86 1865.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181483-1.
This name was in version 1 of The Plant List, record gcc-16553.