This name is a synonym of Euphorbia punctulata Andersson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 78643) with original publication details: Proc. Calif. Acad. Sci. IV, 21: 330 1935.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:101335-2.
This name was in version 1 of The Plant List, record kew-78643, and has not been changed.