Basionym Name:Sagedia caliginosa Anzi, Comm. Soc. crittog. Ital. 1(fasc. 3): 162 (1862)
Homotypic synonyms:Porina caliginosa (Anzi) Lettau, Hedwigia 52(3-4): 105 (1912)Porina linearis f. caliginosa (Anzi) Keissl., Rabenh. Krypt.-Fl., Edn 2 (Leipzig) 9(1.2): 327 (1937)