This name is a synonym of Pentacalia pachypus (Greenm.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 3922F763-73A1-4A73-85FC-D401C145D965) with original publication details: 72 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:963599-1.
This name was in version 1 of The Plant List, record gcc-125843, and has not been changed.