This name is a synonym of Libanothamnus granatesianus (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2CA3C86F-5543-40C8-B16B-FBB0732D15DC) with original publication details: Phytologia 27 44 1973.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97676-2.
This name was in version 1 of The Plant List, record gcc-143355, and has not been changed.