This name is a synonym of Ruilopezia paltonioides (Standl.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2EAF2F9D-88EE-430D-90F7-84F07FDC131E) with original publication details: Amer. J. Bot. 2 482 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97739-2.
This name was in version 1 of The Plant List, record gcc-90807, and has not been changed.