The Mycosphaerellaceae are a family of sac fungi. They affect many common plants, such as eucalyptus, the myrtle family, and the Proteaceae. They have a widespread distribution.

Taxonomy

The following genera are included in this family:<ref name="Wijayawardene et al. 2022"> • Acervuloseptoria (2) • Achorodothis (unresolved) • Amycosphaerella (2) • Annellosympodiella (1) • Apseudocercosporella (1) • Asperisporium (24) • Australosphaerella (1) • Brunneosphaerella (3) • Brunswickiella (1) • Camptomeriphila (1) • Caryophylloseptoria (4) • Catenulocercospora (1) • Cercoramularia (1) • Cercospora (ca. 1125) • Cercosporella (ca. 100) • Cercosporidium (ca. 10) • Chuppomyces (1) • Clarohilum (1) • Clypeosphaerella (3) • Collapsimycopappus (1) • Collarispora (1) • Coremiopassalora (2) • Cytostagonospora (5) • Deightonomyces (1) • Devonomyces (1) • Dictyosporina (1) • Distocercospora (4) • Distocercosporaster (1) • Distomycovellosiella (1) • Dothistroma (5) • Epicoleosporium (1) • Exopassalora (1) • Exosporium (123) • Exutisphaerella (1) • Filiella (1) • Fulvia (2) • Fusoidiella (2) • Graminopassalora (1) • Hyalocercosporidium (1) • Hyalozasmidium (2) • Janetia (22) • Lecanosticta (8) • Madagascaromyces (1) • Microcyclosporella (1) • Micronematomyces (2) • Miuraea (1) • Mycodiella (3) • Mycosphaerelloides (1) • Mycovellosiella (ca. 34) • Neoceratosperma (6) • Neocercospora (1) • Neocercosporidium (1) • Neodeightoniella (1) • Neomycosphaerella (1) • Neopenidiella (1) • Neophloeospora (1) • Neopseudocercospora (2) • Neopseudocercosporella (2) • Neoramichloridium (1) • Neoseptoria (1) • Nothopassalora (1) • Nothopericoniella (1) • Nothophaeocryptopus (1) • Pachyramichloridium (1) • Pallidocercospora (9) • Pantospora (1) • Paracercospora (5) • Paracercosporidium (2) • Paramycosphaerella (17) • Paramycovellosiella (1) • Parapallidocercospora (2) • Passalora (ca. 250) • Phaeocercospora (2) • Phaeophleospora (31) • Phaeoramularia (ca. 10) • Phloeospora (141) • Piricauda (31) • Pleopassalora (2) • Pleuropassalora (1) • Pluripassalora (1) • Plurivorosphaerella (1) • Polyphialoseptoria (2) • Polythrincium (5) • Protostegia (2) • Pseudocercospora (ca. 1000) • Pseudocercosporella (127) • Pseudopericoniella (1) • Pseudophaeophleospora (2) • Pseudozasmidium (4) • Ragnhildiana (18) • Ramularia (100<) • Ramulariopsis (4) • Ramulispora (18) • Rhachisphaerella (1) • Rosisphaerella (1) • Ruptoseptoria (1) • Scolecostigmina (23) • Septoria (includes Septocyta ) (200<) • Sonderhenia (2) • Sphaerulina (65) • Stromatoseptoria (1) • Sultanimyces (1) • Trochophora (2) • Uwemyces (1) • Virosphaerella (3) • Xenomycosphaerella (3) • Xenopassalora (1) • Xenoramularia (3) • Xenosonderhenia (2) • Xenosonderhenioides (1) • Zasmidium (includes Periconiella ) (ca. 150) • Zymoseptoria (8)