Synonymy:
Sphaeria rivana De Not., Comm. Soc. crittog. Ital. 2(fasc. 3): 485 (1867)
Leptosphaeria rivana (De Not.) Sacc., Syll. Fung. (Abellini) 2: 83 (1883)
Heptameria rivana (De Not.) Cooke, Grevillea 18(no. 86): 33 (1889)
Dacampiosphaeria rivana (De Not.) D. Hawksw., Trans. Br. mycol. Soc. 74(2): 368 (1980)

Microthelia baeomycearia Linds., Trans. Bot. Soc. Edinb. 25: 541 (1869)
Leptosphaeria baeomycearia (Linds.) Sacc. & Trotter, Syll. Fung. (Abellini) 22(1): 235 (1913)

Sphaeria caninae W. Phillips & Plowr., Grevillea 6(no. 37): 27 (1877)
Psilosphaeria caninae (W. Phillips & Plowr.) Cooke & Plowr., in Cooke, Grevillea 7(no. 43): 84 (1879)
Leptosphaeria caninae (W. Phillips & Plowr.) Sacc., Syll. Fung. (Abellini) 2: 81 (1883)
Heptameria caninae (W. Phillips & Plowr.) Cooke, Grevillea 18(no. 86): 33 (1889)

Verrucaria neottizans Leight., Trans. Linn. Soc. London, Bot., Ser. 2 1(5): 239 (1878)
Xenosphaeria neottizans (Leight.) Arnold, Flora, Regensburg 64(21): 326 (1881)
Leptosphaeria neottizans (Leight.) Zopf, Hedwigia 35(6): 361 (1896)
Didymosphaeria neottizans (Leight.) A.L. Sm., Monogr. Brit. Lich. 2: 344 (1911)

Xenosphaeria oligospora Vain., Meddn Soc. Fauna Flora fenn. 10: 203 (1883)
Leptosphaeria oligospora (Vain.) Sacc. & D. Sacc., in Saccardo, Syll. Fung. (Abellini) 17: 730 (1905)
Sphaeria oligospora (Vain.) H. Olivier, Bull. Acad. Intern. Géogr. Bot. 17: 170 (1907)

Tichothecium leucomelarium Mudd ex Berl. & Voglino, in Saccardo, Syll. Fung., Addit. I-IV (Abellini): 121 (1886)
Phaeospora leucomelaria (Mudd ex Berl. & Voglino) Sacc. & P. Syd., Syll. Fung. (Abellini) 16: 520 (1902)
Leptosphaeria leucomelaria (Mudd ex Berl. & Voglino) Vouaux, Bull. Soc. Mycol. France 29(1): 120 (1913)

Pyrenidiomyces actinelli Cif. & Tomas., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(2): 259 (1954)

Position in classification:
Pyrenidium, Pyrenidiaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Ascomycota, Fungi

Note:
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