This name is a synonym of Pentacalia micropachyphylla (Cuatrec.) Cuatrec..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50200646) with original publication details: Kew Bull. 47(1): 71 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:963593-1.
This name was in version 1 of The Plant List, record tro-50200646.