This name is a synonym of Pentacalia microdon (Wedd.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D310425F-ED22-4F19-B0B4-0972EA272103) with original publication details: 49 1996.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:992430-1.
This name was in version 1 of The Plant List, record gcc-5052, and has not been changed.