This name is a synonym of Libanothamnus tamanus (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 115F0F04-5DEA-4900-B4CE-907F33A7D7AD) with original publication details: Phytologia 27 171 1973.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97786-2.
This name was in version 1 of The Plant List, record gcc-95950, and has not been changed.