This name is a synonym of Allium guttatum subsp. sardoum (Moris) Stearn.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 296639) with original publication details: Trudy Imp. S.-Peterburgsk. Bot. Sada 3(2): 47 1875.
This name was in version 1 of The Plant List, record kew-296639.