This name is a synonym of Allium cyathophorum var. farreri (Stearn) Stearn.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295531) with original publication details: J. Bot. 68: 342 1930.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:528017-1.
This name was in version 1 of The Plant List, record kew-295531, and has not been changed.