Basionym Name:Squamaria frostii Tuck., Amer. J. Sci. Arts, Ser. 2 25: 425 (1858)
Homotypic synonyms:Dirinaria frostii (Tuck.) Hale & W.L. Culb., Bryologist 73(3): 513 (1970)Lecanora frostii (Tuck.) Tuck., [as 'frosti'] Proc. Amer. Acad. Arts & Sci. 6: 267 (1866)Physcia frostii (Tuck.) Zahlbr., Cat. Lich. Univers. 7: 582 (1931)Pyxine frostii (Tuck.) Tuck., Syn. N. Amer. Lich. (Boston) 1: 79 (1882)Pyxine picta subsp. frostii (Tuck.) Tuck., Syn. N. Amer. Lich. (Boston) 1: 79 (1882)