This name is a synonym of Ruilopezia josephensis (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1DBC7A40-3549-417D-8E57-08DB865E7EEB) with original publication details: Phytologia 29 374 .
This name was in version 1 of The Plant List, record gcc-4760, and has not been changed.