This name is a synonym of Antirrhinum majus subsp. linkianum (Boiss. & Reut.) Rothm..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Phytogr. Lusit. Select. 2: 113 1827.
This name was in version 1 of The Plant List, record kew-2642745.