Campanula escalerae Campanula escalerae (Pau) Rech. f. & Schiman-Czeika in Fl. Iran. 13: 22. 1965≡Campanula violifolia Pau, Trab. Mus. Ci. Nat., Ser. Bot. 14: 38. 1918, nom. illeg.1,21. Lammers 2010: World Checklist [Database], 2. nom. illeg.