This name is a synonym of Ruilopezia bracteosa (Standl.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 63B7DEE0-7D85-4B3A-B59B-EC4286A302B2) with original publication details: Amer. J. Bot. 2 484 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97633-2.
This name was in version 1 of The Plant List, record gcc-136458, and has not been changed.