This name is a synonym of Prestonia quinquangularis (Jacq.) Spreng..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 65800) with original publication details: Bull. New York Bot. Gard. 4: 409 1907.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:88597-2.
This name was in version 1 of The Plant List, record kew-65800, and has not been changed.