Homotypic Synonyms See Note

Basionym Name:
Placidium insulare A. Massal., Lotos 6: 78 (1856)

Homotypic synonyms:
Dermatocarpon insulare (A. Massal.) Mig., Flora von Deutschl., Abt. II 12/2: 578 (1930)
Endocarpon insulare (A. Massal.) A. Massal. ex Garov., Memor. R. Istit. Lombardo, 3 Ser. 12: 273 (1873)
Endopyrenium insulare (A. Massal.) Dalla Torre & Sarnth., Fl. Tirol, Vorarlberg, Liechtenstein, IV Band. Die Flechten von Tirol: 509 (1902)
Guignardia insularis (A. Massal.) Keissl., Rabenh. Krypt.-Fl., Edn 2 (Leipzig) 8: 343 (1930)
Laestadia insularis (A. Massal.) Vouaux, Bull. Soc. mycol. Fr. 28: 218 (1912)
Physalospora insularis (A. Massal.) Sacc. & D. Sacc., Syll. fung. (Abellini) 17: 586 (1905)
Verrucaria insularis (A. Massal.) Jatta, Syll. Lich. Ital. (Trano): 502 (1900)
Verrucaria insularis var. insularis (A. Massal.) Jatta, Syll. Lich. Ital. (Trano): 502 (1900)