Basionym Name:Cliostomum tetrasporum De Not., Nuovo G. bot. ital. 13(1): 15 (1881)
Homotypic synonyms:Buellia tetraspora (De Not.) Jatta, Fl. ital. crypt. (Florence) 3: 676 (1911)Samboa tetraspora (De Not.) Cif. & Tomas., Archo. bot. ital. 28: 7 (1952)