Basionym Name:Collema ferax Durieu & Mont., in Montagne, in Durieu, Expl. Sci. Alg., Fl. Algér. 1(livr. 6): 206 (1847)
Homotypic synonyms:Leptogium ferax (Durieu & Mont.) Rabenh., Krypt.-Fl. Sachsen, Abth. 2 (Breslau): 237 (1870)Scytinium ferax (Durieu & Mont.) Otálora, P.M. Jørg. & Wedin, Fungal Diversity 64(1): 290 (2013)