This name is a synonym of Hesperolinon californicum (Benth.) Small.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50120659) with original publication details: Trans. Acad. Sci. St. Louis 5: 19 1887.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:140805-2.
This name was in version 1 of The Plant List, record tro-50120659, and has not been changed.