This name is a synonym of Pentacalia sclerosa (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A6F9BD4E-B967-4D62-92B0-69605BC6B106) with original publication details: 73 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:963612-1.
This name was in version 1 of The Plant List, record gcc-78535, and has not been changed.