Basionym Name:Arthonia platygraphella Nyl., J. Linn. Soc., Bot. 9: 258 (1867)
Homotypic synonyms:Schismatomma platygraphellum (Nyl.) Zahlbr., Cat. Lich. Univers. 2: 563 (1923)Schismatomma platygraphellum var. platygraphellum (Nyl.) Zahlbr., Cat. Lich. Univers. 2: 563 (1923)