Homotypic Synonyms See Note

Basionym Name:
Lichen scalaris Ach., K. Vetensk-Acad. Nya Handl. 16(3): 127 (1795)

Homotypic synonyms:
Hypocenomyce scalaris (Ach.) M. Choisy, Bull. mens. Soc. linn. Soc. Bot. Lyon 20: 133 (1951)
Lecanora scalaris (Ach.) D. Dietr., Lichenogr. Germ. Deutschl. Flecht. naturg. Abbild. Beschreib. (Jena): 28 (1837)
Lecidea scalaris (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 78 (1803)
Lecidea scalaris f. scalaris (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 78 (1803)
Lecidea scalaris var. scalaris (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 78 (1803)
Lepidoma scalare (Ach.) Gray, Nat. Arr. Brit. Pl. (London) 1: 461 (1821)
Lichen peltatus * scalaris (Ach.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 391 (1813)
Patellaria ostreata var. scalaris (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 393 (1831)
Psora scalaris (Ach.) Hook., Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 196 (1833)
Psora scalaris var. scalaris (Ach.) Hook., Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 196 (1833)