This name is a synonym of Euphorbia lorentzii Müll.Arg..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 38080) with original publication details: Lilloa 8: 405 1942.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:340718-1.
This name was in version 1 of The Plant List, record kew-38080.