This name is a synonym of Allium guttatum subsp. dalmaticum (A.Kern. ex Janch.) Stearn.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295403) with original publication details: Oesterr. Bot. Z. 69: 242 1920.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:527909-1.
This name was in version 1 of The Plant List, record kew-295403, and has not been changed.