This name is a synonym of Pentacalia huallagana (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 769C94EE-0AB7-4152-BE06-3B3396AE34A3) with original publication details: 1951.
This name was in version 1 of The Plant List, record gcc-31968, and has not been changed.