This name is a synonym of Allium neapolitanum Cirillo.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295648) with original publication details: Mem. Wern. Nat. Hist. Soc. 6: 85 1827.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:528105-1.
This name was in version 1 of The Plant List, record kew-295648.