Table 1 Recommended generic names of Diaporthales among those that compete for use and their synonyms. The recommended generic name is listed in bold; see text for the rationale for these recommendations. For each generic name this list provides the author, its date and place of publication, the type species of the genus, its basionym, their dates of publication, and the currently accepted name, if different. The action required is indicated in the last column such as protection of names that do not have priority.

Amphiporthe Petr., Sydowia 24: 257 (1971); type species A. hranicensis (Petr.) Petr. (1971), basionym: Diaporthe hranicensis Petr. (1914), now Amphiporthe tiliae (Sacc.) Rossman & Castl. (2015)

Amphicytostroma Petr., Annls mycol. 19: 63 (1921); type species A. tiliae (Sacc.) Petr. (1921), basionym: Cytospora tiliae Sacc. (1879), now Amphiporthe tiliae (Sacc.) Rossman & Castl. (2015)

Protect Amphiporthe (1971) over Amphicytostroma (1921)

Apiognomonia Höhn., Ber. Deutsch. Bot. Ges. 35: 635 (1917); type species A. veneta (Sacc. & Speg.) Höhn. (1918), basionym: Laestadia veneta Sacc. & Speg. (1878)

Discula Sacc., Syll. Fung. 3: 674 (1884); lectotype species: D. quercina (Cooke) Sacc. (1884), basionym: Discella quercina Cooke (1883), now Apiognomonia errabunda (Roberge ex Desm.) Höhn. (1918), basionym Sphaeria errabunda Roberge ex Desm. (1848)

Protect Apiognomonia (1917) over Discula (1884)

Coryneum Nees, Syst. Pilze: 34. (1816); type species: C. umbonatum Nees (1816)

Pseudovalsa Ces. & De Not., Comment. Soc. Crittogam. Ital. 1: 206 (1863); type species: P. lanciformis (Fr.) Ces. & De Not. (1863), basionym Sphaeria lanciformis Fr. (1818), now Coryneum lanciforme (Fr.) Voglmayr & Jaklitsch (2015)

Use Coryneum (1816) rather than Pseudovalsa (1863)

Cryphonectria (Sacc.) Sacc. & D. Sacc., Syll. Fung. 17: 783 (1905), basionym: Nectria subgen. Cryphonectria Sacc. (1883); conserved type species: Cryphonectria parasitica (Murrill) M.E. Barr (1978), basionym Diaporthe parasitica Murrill (1906)

Endothiella Sacc., Annls mycol. 4: 273 (1906); type species: E. gyrosa Sacc. (1906), now Cryphonecria decipiens Gryzenh. & M.J. Wingf. (2009) non C. gyrosa (Berk. & Broome) Sacc. & D. Sacc. (1905)

Use Cryphonectria (1905) rather than Endothiella (1906)

Cryptosporella Sacc., Michelia 1: 30 (1877); lectotype species C. hypodermia (Fr.) Sacc. (1877), basionym: Sphaeria hypodermia Fr. (1823)

Disculina Höhn., Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl. Abt. 1. 125: 104 (1916); type species: D. neesii (Corda) Höhn. (1916), basionym: Cryptosporium neesii Corda (1837), now Cryptosporella suffusa (Fr.) L.C. Mejia & Castl. (2008)

Use Cryptosporella Sacc. (1877) rather than Disculina (1916)

Cytospora Ehrenb., Sylv. mycol. berol.: 2 (1818): Fr., Syst. Mycol. 2: 540 (1823); designated type species: C. chrysosperma Pers. (1818)

Valsa Fr., Syst. Orbis. Veg.: 107 (1825); lectotype species V. ambiens (Pers.) Fr. (1849), basionym Sphaeria ambiens Pers. (1801), now Cytospora leucosperma (Pers.) Fr. (1823), basionym Naemaspora leucosperma Pers. (1796)

Use Cytospora (1818) rather than Valsa (1825), Valsella (1870), Leucostoma (1917), Valseutypella (1919), or Leucocytospora (1927).

Valsella Fuckel, Jb. nassau. Ver. Naturk. 23-24: 203 (1870); type species: Valsella salicis Fuckel (1870), now Cytospora fertilis Sacc. (1884)

Leucostoma (Nitschke) Höhn., Ber. Deutsch. Bot. Ges. 35: 637 (1917), basionym: Valsa subg. Leucostoma Nitschke (1870); type species: L. massarianum (De Not.) Höhn. (1917), basionym: Valsa massariana De Not. (1863), now Cytospora massariana Sacc. (1884)

Valseutypella Höhn., Annls mycol. 16: 224 (1919); type species: V. tristicha (De Not.) Höhn. (1919)

Leucocytospora (Höhn.) Höhn., Mitt. bot. Inst. tech. Hochsch. Wien 4(2): 73 (1927), basionym: Cytospora subgen. Leucocytospora Höhn. (1918); type species: L. corni (Westend.) Höhn. (1927), basionym: Cytospora corni Westend. (1890), now Cytospora fallax (Nitschke) G.C. Adams & Rossman (2015).

Diaporthe Nitschke, Pyrenomyc. Germ. 2: 240 (1870); type species: D. eres Nitschke (1870), nom. cons. prop. (Rossman et al. 2014)

Phomopsis (Sacc.) Bubák, Öst. bot. Z. 55: 78 (1905), basionym: Phoma subgen. Phomopsis Sacc. (1884); type species: P. lactucae (Sacc.) Bubák (1905), basionym: Phoma lactucae Sacc. (1880)

Use Diaporthe (1870) rather than Phomopsis (1884)

Endothia Fr., Summa Veg. Scand.: 385 (1849); designated type species: E. gyrosum (Schwein.) Fr. (1849), basionym: Sphaeria gyrosa Schwein. (1822)

Calopactis Syd. & P. Syd., Annls. mycol. 10: 82 (1912); type species: C. singularis Syd. & P. Syd., now Endothia singularis (Syd.) Shear&N.E. Stevens (1917)

Use Endothia (1849) rather than Calopactis (1912)

Massariovalsa Sacc., Michelia 2: 569 (1882); type species: M. sudans (Berk. & M.A. Curtis) Sacc. (1882), basionym: Massaria sudans Berk. & M.A. Curtis (1876)

Melanconiopsis Ellis & Everh., Bull. Torrey Bot. Club 27: 575 (1900); type species: M. inquinans Ellis & Everh. (1900), now Massariovalsa sudans (Berk. & M.A. Curtis) Sacc. (1882)

Use Massariovalsa (1882) rather than Melanconiopsis (1900)

Mastigosporella Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 123: 135 (1914); type species: M. hyalina (Ellis & Everh.) Höhn. (1914), basionym: Harknessia hyalina Ellis & Everh. (1885)

Wuestneiopsis J. Reid & Dowsett, Can. J. Bot. 68: 2406 (1990); type species: W. georgiana (J.H. Mill. & G.E. Thomps.) J. Reid & Dowsett (1990), basionym: Gnomoniella georgiana J.H. Mill. & G.E. Thomps. (1940), now Mastigosporella georgiana (J.H. Mill. & G.E. Thomps.) Rossman & Crous (2015)

Use Mastigosporella (1914) rather than Wuestneiopsis (1990)

Mazzantia Mont., Bull. Soc. Bot. France 2: 525 (1855); type species M. galii (Fr.) Mont. (1856), basionym: Sphaeria galii Fr. (1828)

Mazzantiella Höhn., Mitt. Bot. Lab. TH Wien 2: 61 (1925); designated type species: M. sepium (Brunaud) Höhn. (1925), basionym: Placosphaeria sepium Brunaud (1890), now Mazzantia sepium Sacc. & Penz. (1882)

Use Mazzantia (1855) rather than Mazzantiella (1925)

Melanconis Tul. & C. Tul., Select. fung. carpol. 2: 115 (1863); type species: M. stilbostoma (Fr.) Tul. & C. Tul. (1863), basionym: Sphaeria stilbostoma Fr. (1817)

Melanconium Link, Mag. Gesell. naturf. Freunde, Berlin 3(1–2): 9 (1809); type species: M. atrum Link (1809)

Protect Melanconis (1863) over Melanconium (1832)

Pilidiella Petr. & Syd., Beih. Reprium nov. Spec. Regni veg. 42: 462 (1927); type species: P. quercicola (Oudem.) Petr. (1927), basionym Macroplodia quercicola Oudem. (1902)

Schizoparme Shear, Mycologia 15: 120 (1923); type species: S. straminea Shear (1923), now Pilidiella castaneicola (Ellis & Everh.) Arx (1957), basionym Gloeosporium castaneicola Ellis & Everh. (1895)

Protect Pilidiella (1927) over Schizoparme (1923)

Plagiostoma Fuckel, Jahrb. Nassauischen Vereins Naturk. 23–24: 118 (1870); designated type species P euphorbiae (Fuckel) Fuckel (1870), basionym Sphaeria euphorbiae Fuckel (1860)

Diplodina Westend., Bull. Acad. Roy. Sci. Belgique, Cl. Sci. ser. 2. 2: 562 (1857); type species: D. salicis Westend. (1857), now Plagiostoma apiculata (Wallr.) L.C. Mejía (2011)

Protect Plagiostoma (1870) over Diplodina (1857), additional synonyms Septomyxa (1884) and Cryptodiaporthe (1921)

Septomyxa Sacc., Syll. Fung. 3: 766 (1884); type species: Septomyxa aesculi Sacc. (1878), now Plagiostoma aesculi (Fuckel) Sogonov (2008)

Cryptodiaporthe Petrak, Annls mycol. 19: 118 (1921); lectotype species C. aesculi (Fuckel) Petrak, basionym: Cryptospora aesculi Fuckel (1870), now Plagiostoma aesculi (Fuckel) Sogonov (2008)

Stilbospora Pers., Neues Mag. Bot. 1: 93 (1794); type species: S. macrosperma Pers. (1801)

Prosthecium Fresen., Beitr. Mykol. 2: 62 (1852); type species: P. ellipsosporum Fresen. (1852), now Stilbospora macrosperma Pers. (1801)C

Use Stilbospora 1794 rather than Prosthecium (1852