# Alternaria

Alternaria is een schimmelgeslacht, dat behoort tot de Ascomyceten. Alternaria-soorten zijn belangrijke veroorzakers van plantenziekten. Daarnaast zijn er ook saprofytische soorten. Alternaria-soorten produceren mycotoxines, zoals alternariol. Ze worden met het ontstaan van slokdarmkanker in verband gebracht. De binnenshuis voorkomende soorten produceren allergenen, die hooikoorts veroorzaken of overgevoeligheidsreacties geven die soms leiden tot astma. Bij aids-patiënten veroorzaken ze opportunische infecties.
Alternaria-soorten behoren tot de zogenaamde Fungi imperfecti. Ze vormen geen asci en planten zich ongeslachtelijk voort door de vorming van meercellige, raket- of knotsvormige conidiën. Uit genetisch onderzoek blijken vele Alternaria-soorten als teleomorf (geslachtelijk stadium) tot het geslacht Lewia te behoren. Alternaria-soorten die niet tot dit geslacht gerekend kunnen worden op grond van hun geslachtelijke stadium, worden niet langer als Alternaria-soorten beschouwd.

## Enkele soorten

Volgens Index Fungorum bevat het geslacht 609 soorten (peildatum februari 2023):
| Soortnaam | Auteur(s) | Publicatiejaar |
| Alternaria abietis | Tengwall | 1924 |
| Alternaria abundans | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria abutilonis | (Speg.) Schwarze | 1917 |
| Alternaria acalyphae | (Nelen) E.G. Simmons | 1994 |
| Alternaria acalyphicola | E.G. Simmons | 1994 |
| Alternaria achyranthis | J.Z. Zhang & T.Y. Zhang | 1999 |
| Alternaria aconidiophora | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria actinophylla | J.W. Mill. | 1969 |
| Alternaria africana | E.G. Simmons | 2000 |
| Alternaria agerati | Sawada ex E.G. Simmons | 1997 |
| Alternaria agripestis | E.G. Simmons & K. Mort. | 1994 |
| Alternaria ailanthi | T.Y. Zhang & Y.L. Guo | 1998 |
| Alternaria albiziae | J.M. Yen | 1980 |
| Alternaria aliena | E.G. Simmons | 1993 |
| Alternaria allii | Nolla | 1927 |
| Alternaria allii-tuberosi | (X.G. Zhang & T.Y. Zhang) Gannibal & D.P. Lawr. | 2018 |
| Alternaria alocasiae | T.Y. Zhang & M.X. Gao | 1999 |
| Alternaria alstroemeriae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria altcampina | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria alternantherae | Holcomb & Antonop. | 1976 |
| Alternaria alternariacida | Woudenb. & Crous | 2014 |
| Alternaria alternariae | (Cooke) Woudenb. & Crous | 2013 |
| Alternaria alternarina | E.G. Simmons | 2007 |
| Alternaria alternata | (Fr.) Keissl. | 1912 |
| Alternaria amaranthi | (Peck) J.M. Hook | 1921 |
| Alternaria americana | Sawada | 1931 |
| Alternaria ammopiptanthi | R.Q. Shen, H.S. Shang & K.C. Wang | 2007 |
| Alternaria amorphophalli | V.G. Rao | 1962 |
| Alternaria amphicarpaeae | Meng Zhang & T.Y. Zhang | 2008 |
| Alternaria anagallidis | A. Raabe | 1939 |
| Alternaria angustiovoidea | E.G. Simmons | 1986 |
| Alternaria anigozanthi | R.D. Raabe | 1985 |
| Alternaria anodae | E.G. Simmons | 2003 |
| Alternaria anthropophila | Iturrieta-González, Gené, Alastr.-Izq. & Dania García | 2020 |
| Alternaria anthyllidis | (Baudyš) Ondřej | 1996 |
| Alternaria aquaeductua | Yatel | 1938 |
| Alternaria aracearum | Smita Jain & A.N. Rai | 2004 |
| Alternaria arachidis | R.L. Kulk. | 1974 |
| Alternaria aragakii | E.G. Simmons | 1993 |
| Alternaria arborescens | E.G. Simmons | 1999 |
| Alternaria arbusti | E.G. Simmons | 1993 |
| Alternaria argyranthemi | E.G. Simmons & C.F. Hill | 1997 |
| Alternaria argyroxiphii | E.G. Simmons & Aragaki | 1997 |
| Alternaria armeniacae | T.Y. Zhang, Meng Zhang & W.H. Yang | 2003 |
| Alternaria armoraciae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria arrhenatheri | D.P. Lawr., Rotondo & Gannibal | 2015 |
| Alternaria ascaloniae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria asclepiadea | (Cooke) E.G. Simmons | 2007 |
| Alternaria aspera | Woudenb. & Crous | 2013 |
| Alternaria asphodeli | O. Săvul. | 1950 |
| Alternaria astragali | Wangeline & E.G. Simmons | 2007 |
| Alternaria atra | (Preuss) Woudenb. & Crous | 2013 |
| Alternaria atrans | F. Gibson | 1922 |
| Alternaria atrobrunnea | Iturrieta-González, Pujol, García & Gené | 2020 |
| Alternaria atrocariis | E.G. Simmons | 1995 |
| Alternaria avenicola | E.G. Simmons, Kosiak & Kwaśna | 2007 |
| Alternaria axiaeriisporifera | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria azadirachtae | E.G. Simmons & Alcorn | 2007 |
| Alternaria azukiae | (Hara) T.Y. Zhang & Y.L. Guo | 1998 |
| Alternaria bannaensis | W.Q. Chen & T.Y. Zhang | 1997 |
| Alternaria banyan | Mall & Aj. Kumar | 2013 |
| Alternaria barbata | L. He & J.X. Deng | 2021 |
| Alternaria basellae | T.Y. Zhang | 1999 |
| Alternaria bataticola | Ikata ex W. Yamam. | 1960 |
| Alternaria bauhiniae | Hansf. | 1943 |
| Alternaria beringelae | E.G. Simmons | 2000 |
| Alternaria betae-kenyensis | E.G. Simmons | 2007 |
| Alternaria beticola | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria betulae | T.Y. Zhang & Y.L. Guo | 1998 |
| Alternaria biproliformis | T.Y. Zhang | 1999 |
| Alternaria blumeae | E.G. Simmons & Sontirat | 1997 |
| Alternaria bokurai | Miura | 1928 |
| Alternaria bonducellae | R. Dubey, S.K. Singh & Kamal | 1999 |
| Alternaria bornmuelleri | (Magnus) Woudenb. & Crous | 2013 |
| Alternaria botryospora | Woudenb. & Crous | 2013 |
| Alternaria botrytis | (Preuss) Woudenb. & Crous | 2013 |
| Alternaria brasiliensis | F.M. Queiroz, M.F.S. Muniz & M. Menezes | 2001 |
| Alternaria brassicae | (Berk.) Sacc. | 1880 |
| Alternaria brassicae-pekinensis | Woudenb. & Crous | 2013 |
| Alternaria brassicicola | (Schwein.) Wiltshire | 1947 |
| Alternaria brassicinae | E.G. Simmons | 2007 |
| Alternaria bresadolae | P. Joly | 1964 |
| Alternaria breviramosa | Woudenb. & Crous | 2013 |
| Alternaria breviseptata | (Matsush.) de Hoog & Oorschot | 1985 |
| Alternaria brevispora | T.Y. Zhang | 1999 |
| Alternaria broccoli-italicae | E.G. Simmons | 2007 |
| Alternaria broussonetiae | T.Y. Zhang, W.Q. Chen & M.X. Gao | 1999 |
| Alternaria brunnea | T.Y. Zhang | 2003 |
| Alternaria bryophylli | (Sawada) R. Kirschner | 2015 |
| Alternaria bundelkhandae | Smita Jain & A.N. Rai | 2004 |
| Alternaria burnsii | Uppal, Patel & Kamat | 1938 |
| Alternaria caespitosa | (de Hoog & C. Rubio) Woudenb. & Crous | 2013 |
| Alternaria cajani | Rak. Kumar, A.N. Rai & K.M. Vyas | 1996 |
| Alternaria calendulae | Ondřej | 1974 |
| Alternaria californica | E.G. Simmons & S.T. Koike | 2007 |
| Alternaria calycanthi | (Cavara) P. Joly | 1964 |
| Alternaria calycipyricola | R.G. Roberts | 2007 |
| Alternaria camelliae | (Cooke & Massee) P. Joly | 1964 |
| Alternaria cantlous | (Yong Wang bis & X.G. Zhang) Woudenb. & Crous | 2013 |
| Alternaria capsici | E.G. Simmons | 2000 |
| Alternaria capsici-annui | Săvul. & Sandu | 1935 |
| Alternaria cardiospermi | Canonaco | 1936 |
| Alternaria caricae | T.Y. Zhang, W.Q. Chen & X.F. Lin | 1999 |
| Alternaria caricicola | Ahmadp. | 2019 |
| Alternaria caricina | Ondřej | 1996 |
| Alternaria caricis | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria carolinaeana | Unamuno | 1941 |
| Alternaria carotiincultae | E.G. Simmons | 1995 |
| Alternaria carthami | S. Chowdhury | 1944 |
| Alternaria carthamicola | Woudenb. & Crous | 2014 |
| Alternaria carthami-tinctorii | T.Y. Zhang & Y.L. Guo | 1998 |
| Alternaria cassiae | Jurair & A. Khan | 1960 |
| Alternaria castaneae | (X.G. Zhang & T.Y. Zhang) Gannibal & D.P. Lawr. | 2018 |
| Alternaria catalpae | (Ellis & G. Martin) P. Joly | 1964 |
| Alternaria catananches | Woudenb. & Crous | 2014 |
| Alternaria catharanthi | (T.Y. Zhang & X.F. Lin) E.G. Simmons | 2007 |
| Alternaria catharanthicola | T.Y. Zhang | 1999 |
| Alternaria caudata | (Cooke & Ellis) E.G. Simmons | 2007 |
| Alternaria celosiicola | Jun. Nishikawa & C. Nakash. | 2013 |
| Alternaria centaureae | E.G. Simmons | 2007 |
| Alternaria cepulae | Ponnappa & R.S. Deshp. | 1974 |
| Alternaria cerasi | Potebnia | 1907 |
| Alternaria cerasidanica | R.G. Roberts | 2010 |
| Alternaria cercosporoides | Unamuno | 1942 |
| Alternaria cerealis | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria cesenica | Phukhams., Qing Tian, Camporesi & K.D. Hyde | 2015 |
| Alternaria chartarum | Preuss | 1851 |
| Alternaria cheiranthi | (Lib.) P.C. Bolle | 1924 |
| Alternaria chenopodii | A. Raabe | 1939 |
| Alternaria chenopodiicola | T.Y. Zhang, W.Q. Chen & M.X. Gao | 1999 |
| Alternaria chlamydospora | Mouch. | 1973 |
| Alternaria chlamydosporifera | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria chlamydosporiformans | (B.S. Vieira & R.W. Barreto) P.M. Kirk | 2015 |
| Alternaria chlamydosporigena | Woudenb. & Crous | 2013 |
| Alternaria ciceris | E.G. Simmons | 2007 |
| Alternaria cichorii | Nattrass | 1937 |
| Alternaria cicina | E.G. Simmons | 1994 |
| Alternaria cinerariae | Hori & Enjoji | 1931 |
| Alternaria cinerea | (Baucom & Creamer) Woudenb. & Crous | 2013 |
| Alternaria cirsinoxia | E.G. Simmons & K. Mort. | 1997 |
| Alternaria citri | Ellis & N. Pierce | 1902 |
| Alternaria citriarbusti | E.G. Simmons | 1999 |
| Alternaria citricancri | E.G. Simmons | 2007 |
| Alternaria citrimacularis | E.G. Simmons | 1999 |
| Alternaria citrullicola | Woudenb. & Crous | 2014 |
| Alternaria clerodendri | T.Y. Zhang & J.Z. Zhang | 2003 |
| Alternaria coicis | T.Y. Zhang | 2003 |
| Alternaria colombiana | E.G. Simmons | 1999 |
| Alternaria compacta | (Cooke) McClellan | 1944 |
| Alternaria concatenata | Woudenb. & Crous | 2013 |
| Alternaria concentrica | (G. Winter) P. Joly | 1964 |
| Alternaria congesta | (Bres.) P. Joly | 1964 |
| Alternaria conidiophora | Woudenb. & Crous | 2014 |
| Alternaria conoidea | (E.G. Simmons) D.P. Lawr., Gannibal, Peever & B.M. Pryor | 2013 |
| Alternaria consortialis | (Thüm.) J.W. Groves & S. Hughes | 1953 |
| Alternaria constricta | E.G. Simmons | 1994 |
| Alternaria cookei | (Sacc.) Bremer, Işmen, Karel, Özkan & M. Özkan | 1948 |
| Alternaria cosmosa | Y.L. Li & W.S. Wu | 2005 |
| Alternaria crassa | (Sacc.) Rands | 1917 |
| Alternaria crassoides | (Davis) Gannibal | 2018 |
| Alternaria crotonicola | T.Y. Zhang & J.C. David | 1996 |
| Alternaria crotonis | Kamal, R.P. Singh & P. Kumar | 1980 |
| Alternaria cryptostegiae | Smita Jain & A.N. Rai | 2004 |
| Alternaria cucumerina | (Ellis & Everh.) J.A. Elliott | 1917 |
| Alternaria cucurbitae | Letendre & Roum. | 1886 |
| Alternaria culmorum | (Cooke & Harkn.) P. Joly | 1964 |
| Alternaria cumini | E.G. Simmons | 2007 |
| Alternaria curvata | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria cylindrica | Jun. Nishikawa & C. Nakash. | 2020 |
| Alternaria cylindrorostra | T.Y. Zhang | 2003 |
| Alternaria cypericola | Ahmadpour, Poursafar & Ghosta | 2021 |
| Alternaria cyphomandrae | E.G. Simmons | 2000 |
| Alternaria dactylidicola | Thambug., Camporesi & K.D. Hyde | 2017 |
| Alternaria danida | E.G. Simmons | 1997 |
| Alternaria daturicola | T.Y. Zhang, G.Z. Zhao & Meng Zhang | 2003 |
| Alternaria dauci | (J.G. Kühn) J.W. Groves & Skolko | 1944 |
| Alternaria daucicaulis | E.G. Simmons | 2007 |
| Alternaria daucicola | T.Y. Zhang | 2003 |
| Alternaria daucifolii | E.G. Simmons | 2007 |
| Alternaria dendropanacis | S.H. Yu & J.X. Deng | 2015 |
| Alternaria dennisii | M.B. Ellis | 1971 |
| Alternaria deserticola | Woudenb. & Crous | 2014 |
| Alternaria destruens | E.G. Simmons | 1998 |
| Alternaria dianthi | J.V. Almeida & Sousa da Câmara | 1903 |
| Alternaria dianthicola | Neerg. | 1945 |
| Alternaria dichondrae | Gambogi, Vannacci & Triolo | 1975 |
| Alternaria didymospora | (Munt.-Cvetk.) Woudenb. & Crous | 2013 |
| Alternaria dioscoreae | V.G. Rao | 1961 |
| Alternaria dissitiflori | Meng Zhang & T.Y. Zhang | 2007 |
| Alternaria divaricatae | L. He & J.X. Deng | 2021 |
| Alternaria diversispora | (Thüm.) E.G. Simmons | 2007 |
| Alternaria dolichi | (T.Y. Zhang & G.Z. Zhao) Gannibal | 2018 |
| Alternaria doliconidium | J.F. Li, Camporesi & K.D. Hyde | 2018 |
| Alternaria dumosa | E.G. Simmons | 1999 |
| Alternaria echinaceae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria eichhorniae | Nag Raj & Ponnappa | 1970 |
| Alternaria elaeagni | Vidhyas., Rangan. & Rangaswami | 1973 |
| Alternaria elegans | E.G. Simmons & J.C. David | 2000 |
| Alternaria eleutherines | T.Y. Zhang | 1999 |
| Alternaria ellipsoidea | E.G. Simmons | 2002 |
| Alternaria ellisii | Pandotra & Ganguly | 1964 |
| Alternaria embellisia | Woudenb. & Crous | 2013 |
| Alternaria enydrae | S.A. Khan & M. Kamal | 1974 |
| Alternaria eriobotryae | Y.X. Yang, Y. Wang & J.S. Wang | 2016 |
| Alternaria ershadii | A. Poursafar, Ghosta & M. Javan-Nikkhah | 2019 |
| Alternaria erumpens | (Cooke) P. Joly | 1964 |
| Alternaria eryngii | (Pers.) S. Hughes & E.G. Simmons | 1958 |
| Alternaria erythrinae | A. Agostini | 1929 |
| Alternaria ethzedia | E.G. Simmons | 1986 |
| Alternaria eucalypti | (Henn.) P. Joly | 1964 |
| Alternaria euphorbiae | (Barthol.) Aragaki & J.Y. Uchida | 1985 |
| Alternaria euphorbiicola | E.G. Simmons & Engelhard | 1986 |
| Alternaria eureka | E.G. Simmons | 1986 |
| Alternaria fagaricola | (Speg.) P. Joly | 1964 |
| Alternaria fici | Farneti | 1903 |
| Alternaria ficinae | Rak. Kumar, A.N. Rai & K.M. Vyas | 1996 |
| Alternaria fimeti | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria floridana | (Cooke) E.G. Simmons | 2007 |
| Alternaria florigena | (Ellis & Dearn.) Nelen ex P. Joly | 1964 |
| Alternaria forlicesenensis | Thambug., Camporesi & K.D. Hyde | 2017 |
| Alternaria forsythiae | Harter | 1911 |
| Alternaria franseriae | E.G. Simmons | 1997 |
| Alternaria frumenti | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria fulva | (Baucom & Creamer) Woudenb. & Crous | 2013 |
| Alternaria fumaginoides | Peyronel | 1927 |
| Alternaria fumosella | Cif. | 1962 |
| Alternaria gaisen | Nagano ex Bokura | 1924 |
| Alternaria gansuensis | J.Li Liu & Y.Z. Li | 2015 |
| Alternaria gaurae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria geniostomatis | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria geophila | Dasz. | 1912 |
| Alternaria geranii | Losa | 1944 |
| Alternaria glyceriae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria gomphrenae | Togashi | 1926 |
| Alternaria gorakhpurensis | R. Dubey, S.K. Singh & Kamal | 1999 |
| Alternaria gossypii | (Jacz.) Y. Nisik., K. Kimura & Miyaw. | 1940 |
| Alternaria gossypina | (Thüm.) J.C.F. Hopkins | 1931 |
| Alternaria gpagarwalii | (Nagaraju, Kunwar, Manohar. & D.K. Agarwal) Gannibal & D.P. Lawr. | 2018 |
| Alternaria graminicola | E.G. Simmons | 2007 |
| Alternaria graminum | P. Joly | 1964 |
| Alternaria grandis | E.G. Simmons | 2000 |
| Alternaria granulosa | (Bubák) E.G. Simmons | 1982 |
| Alternaria grisea | Svilv. | 1936 |
| Alternaria grossulariae | Jacz. | 1906 |
| Alternaria guangxiensis | W.Q. Chen & T.Y. Zhang | 1997 |
| Alternaria guaranitica | (Speg.) E.G. Simmons | 2007 |
| Alternaria guarroi | Iturrieta-González, García, Pujol & Gené | 2020 |
| Alternaria guilanica | Poursafar, Hashemlou, Ghosta, Salimi & Jav.-Nikkh. | 2021 |
| Alternaria gypsophilae | Neerg. | 1945 |
| Alternaria hampshirensis | Wanas., E.B.G. Jones & K.D. Hyde | 2018 |
| Alternaria harzii | P. Joly | 1964 |
| Alternaria hawaiiensis | E.G. Simmons | 1993 |
| Alternaria hederae | (J.V. Almeida & Sousa da Câmara) P. Joly | 1964 |
| Alternaria hedjaroudei | Y. Ghosta, Hashemlou, Poursafar & R. Azizi | 2020 |
| Alternaria helianthicola | G.N. Rao & K. Rajagop. | 1977 |
| Alternaria helianthinficiens | E.G. Simmons, Walcz & R.G. Roberts | 1986 |
| Alternaria heliophytonis | E.G. Simmons | 2007 |
| Alternaria herbiculinae | E.G. Simmons | 2007 |
| Alternaria herbiphorbicola | E.G. Simmons | 2007 |
| Alternaria hesperidearum | (E. Pantan.) E.G. Simmons | 1990 |
| Alternaria heteroschemos | (Fautrey) Gannibal | 2018 |
| Alternaria heterospora | Woudenb. & Crous | 2013 |
| Alternaria heveae | E.G. Simmons | 1994 |
| Alternaria heyranica | Ahmadpour, Poursafar & Ghosta | 2021 |
| Alternaria hibisci | Bouhot ex E.G. Simmons | 2007 |
| Alternaria hibiscina | (Thüm.) E.G. Simmons | 2003 |
| Alternaria hibiscinficiens | E.G. Simmons & C.F. Hill | 2003 |
| Alternaria hispanica | L. He & J.X. Deng | 2021 |
| Alternaria hispida | (Harz) Sacc. | 1902 |
| Alternaria hominis | A. Agostini & Tredici | 1937 |
| Alternaria hordeiaustralica | E.G. Simmons & Alcorn | 2007 |
| Alternaria hordeicola | E.G. Simmons & Kosiak | 2007 |
| Alternaria hordeiseminis | E.G. Simmons & G.F. Laundon | 2007 |
| Alternaria hortensiae | Unamuno ex E.G. Simmons | 2007 |
| Alternaria humicola | Oudem. | 1902 |
| Alternaria humuli | E.G. Simmons | 2002 |
| Alternaria humuli-scandens | Meng Zhang, H.Y. Wu & Dong X. Li | 2009 |
| Alternaria hungarica | B. Tóth, Varga, E.G. Simmons & Samson | 2011 |
| Alternaria hyacinthi | (de Hoog & P.J. Mull. bis) Woudenb. & Crous | 2013 |
| Alternaria hydrophila | Raghv. Singh, Sh. Kumar, Pall. Sharma, K. Shukla, Kamal & D.K. Agarwal | 2008 |
| Alternaria ignobilis | (P. Karst.) E.G. Simmons | 2007 |
| Alternaria impatientis | X. Sun & T.Y. Zhang | 2005 |
| Alternaria incomplexa | E.G. Simmons | 1996 |
| Alternaria inconspicua | H.C. Greene | 1954 |
| Alternaria indefessa | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria infectoria | E.G. Simmons | 1986 |
| Alternaria inflata | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria instipitata | (Preuss) E.G. Simmons | 1995 |
| Alternaria intercepta | E.G. Simmons | 2002 |
| Alternaria interna | (McAlpine) P. Joly | 1964 |
| Alternaria interrupta | E.G. Simmons | 1999 |
| Alternaria ipomoeae | Truter, Woudenb. & Crous | 2014 |
| Alternaria iranica | E.G. Simmons & Ghosta | 2007 |
| Alternaria iridiaustralis | E.G. Simmons, Alcorn & C.F. Hill | 2007 |
| Alternaria iridicola | (Ellis & Everh.) J.A. Elliott | 1917 |
| Alternaria italica | J.F. LI, Camporesi & K.D. Hyde | 2018 |
| Alternaria jacinthicola | Dagno & Jijakli | 2011 |
| Alternaria japonica | Yoshii | 1941 |
| Alternaria jesenskae | Labuda, P. Eliáš & Sterfl. | 2008 |
| Alternaria junci-acuti | Ahmadpour, Poursafar & Ghosta | 2021 |
| Alternaria juncicola | (E.G. Simmons) Gannibal | 2018 |
| Alternaria junci-glauci | P. Joly | 1964 |
| Alternaria juxtiseptata | E.G. Simmons | 2002 |
| Alternaria kamtschatica | Gannibal | 2018 |
| Alternaria kansui | T.Y. Zhang & J.Z. Zhang | 1999 |
| Alternaria kareliniae | B. Xu & Z.D. Jiang | 2019 |
| Alternaria kordkuyana | A. Poursafar, Gannibal, Ghosta, Javan-Nikkhah & D.P. Lawrence | 2017 |
| Alternaria koreana | O. Hassan, B.B.N.D. Romain, J.S. Kim & T. Chang | 2021 |
| Alternaria kulundae | Bilanenko, Georgieva & Grum-Grzhim. | 2015 |
| Alternaria lactucae | Meng Zhang & T.Y. Zhang | 2006 |
| Alternaria lactucicola | X. Sun & T.Y. Zhang | 2007 |
| Alternaria lallemantiae | (Khokhr.) E.G. Simmons | 2007 |
| Alternaria lanuginosa | (Harz) Sacc. | 1886 |
| Alternaria latifunda | E.G. Simmons | 1993 |
| Alternaria latispora | T.Y. Zhang & Meng Zhang | 2003 |
| Alternaria lawrencei | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria leptinellae | (E.G. Simmons & C.F. Hill) Woudenb. & Crous | 2013 |
| Alternaria levis | Gambogi ex E.G. Simmons | 2007 |
| Alternaria ligustici | J.Z. Zhang & T.Y. Zhang | 2003 |
| Alternaria limaciformis | E.G. Simmons | 1981 |
| Alternaria limicola | E.G. Simmons & M.E. Palm | 1990 |
| Alternaria limnanthemicola | R.L. Mathur, Agnihotri & Tyagi | 1962 |
| Alternaria limoniasperae | E.G. Simmons | 1999 |
| Alternaria linariae | (Neerg.) E.G. Simmons | 2007 |
| Alternaria lini | P.K. Dey | 1933 |
| Alternaria linicola | J.W. Groves & Skolko | 1944 |
| Alternaria liriodendri | T.Y. Zhang & J.Z. Zhang | 1999 |
| Alternaria litorea | (Pivkin & Zvereva) E.G. Simmons | 2007 |
| Alternaria lolii | (E.G. Simmons & C.F. Hill) Woudenb. & Crous | 2013 |
| Alternaria loliicola | Meng Zhang | 2006 |
| Alternaria lolii-temulenti | A. Agostini | 1926 |
| Alternaria longipes | (Ellis & Everh.) E.W. Mason | 1928 |
| Alternaria longirostrata | T.Y. Zhang & Meng Zhang | 2003 |
| Alternaria longispora | McAlpine | 1904 |
| Alternaria longissima | Deighton & MacGarvie | 1968 |
| Alternaria loofahae | E.G. Simmons & Aragaki | 2007 |
| Alternaria luffae | T.Y. Zhang | 1999 |
| Alternaria lunariae | (Oudem. & C.J.J. Hall) E.G. Simmons | 2007 |
| Alternaria lungaensis | Matsush. | 1971 |
| Alternaria macalpinei | E.G. Simmons | 1990 |
| Alternaria macrospora | Zimm. | 1904 |
| Alternaria malayensis | Trivedi & C.L. Verma | 1970 |
| Alternaria mali | Roberts | 1914 |
| Alternaria malorum | U. Braun, Crous & Dugan | 2003 |
| Alternaria malvacearum | E.G. Simmons | 2003 |
| Alternaria malvae | Roum. & Letell. | 1885 |
| Alternaria malvae-vulgaris | (A.G. Eliasson) E.G. Simmons | 2003 |
| Alternaria manihoticola | (J.M. Yen) Gannibal & D.P. Lawr. | 2018 |
| Alternaria manihotis | T.Y. Zhang | 1999 |
| Alternaria manshurica | Hara | 1936 |
| Alternaria maritima | G.K. Sutherl. | 1916 |
| Alternaria martindalei | (Ellis & G. Martin) P. Joly | 1964 |
| Alternaria melongenae | Rangaswami & Samb. | 1961 |
| Alternaria merytae | E.G. Simmons | 2002 |
| Alternaria metachromatica | E.G. Simmons | 1994 |
| Alternaria microspora | (Moub. & Abdel-Hafez) Gannibal & D.P. Lawr. | 2018 |
| Alternaria mimicula | E.G. Simmons | 1995 |
| Alternaria mirabibensis | Crous | 2020 |
| Alternaria molesta | E.G. Simmons | 1981 |
| Alternaria montanica | E.G. Simmons & Robeson | 2007 |
| Alternaria montsantina | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria mouchaccae | E.G. Simmons | 1981 |
| Alternaria multiformis | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria multirostrata | E.G. Simmons & C.R. Jacks. | 1968 |
| Alternaria muriformispora | J.F. Li, Camporesi, Phookamsak & Bhat | 2022 |
| Alternaria murispora | Ariyaw. & K.D. Hyde | 2015 |
| Alternaria mycophila | (Bubák & Dearn.) P. Joly | 1964 |
| Alternaria nana | T.S. Matvejeva | 1951 |
| Alternaria napiformis | Purkay. & Mallik | 1976 |
| Alternaria nashi | Miura | 1925 |
| Alternaria nattrassii | E.G. Simmons | 1997 |
| Alternaria neergaardii | B.S. Mehrotra & Narain | 1969 |
| Alternaria negundinicola | (Ellis & Barthol.) P. Joly | 1964 |
| Alternaria nelumbicola | T.Y. Zhang | 2000 |
| Alternaria nelumbii | Enlows & F.V. Rand | 1921 |
| Alternaria neoipomoeae | Truter, Woudenb. & Crous | 2014 |
| Alternaria nepalensis | E.G. Simmons | 2007 |
| Alternaria nerii | (Cooke) E.G. Simmons | 2007 |
| Alternaria nicotiana | J.L. Cheng | 1997 |
| Alternaria nimbyae-dianthi | Gannibal | 2018 |
| Alternaria nimbyoides | Gannibal | 2018 |
| Alternaria nitrimali | E.G. Simmons & M.E. Palm | 2000 |
| Alternaria nobilis | (Vize) E.G. Simmons | 2002 |
| Alternaria novae-guineensis | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria novae-zelandiae | E.G. Simmons | 2002 |
| Alternaria nucis | Moesz | 1909 |
| Alternaria nyctanthis | K.B. Deshp. & Rajd. | 1964 |
| Alternaria obclavata | (Crous & U. Braun) Woudenb. & Crous | 2013 |
| Alternaria obclavoidea | E.G. Simmons | 1993 |
| Alternaria oblongo-obovoidea | (X.G. Zhang & T.Y. Zhang) Gannibal & D.P. Lawr. | 2018 |
| Alternaria obovoidea | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria obpyriconidia | J.F. Li, Camporesi, Phookamsak & Bhat | 2022 |
| Alternaria obpyriformis | T.Y. Zhang | 1999 |
| Alternaria obtecta | E.G. Simmons | 1994 |
| Alternaria obtusa | B.W. Ferreira & R.W. Barreto | 2019 |
| Alternaria ochroleuca | T.S. Matvejeva | 1951 |
| Alternaria olivacea | (Ellis & Everh.) J.M. Hook | 1928 |
| Alternaria omanensis | Al Ghafri, Maharachch., K.D. Hyde & Al-Sadi | 2019 |
| Alternaria onobrychidis | Ranoj. | 1914 |
| Alternaria oregonensis | E.G. Simmons | 1994 |
| Alternaria ornatissima | (Ellis & Barthol.) P. Joly | 1964 |
| Alternaria oryzae | Hara | 1928 |
| Alternaria oudemansii | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria ovoidea | J.F. Li, Camporesi, Bhat & Phookamsak | 2022 |
| Alternaria oxytropis | (Q. Wang, Nagao & Kakish.) Woudenb. & Crous | 2013 |
| Alternaria padwickii | (Ganguly) M.B. Ellis | 1971 |
| Alternaria painchiicola | C.D. Sharma, A.N. Rai & K.M. Vyas | 1996 |
| Alternaria palandui | Ayyangar | 1928 |
| Alternaria panax | Whetzel | 1912 |
| Alternaria papavericola | Woudenb. & Crous | 2013 |
| Alternaria papaveris | (Bres.) M.B. Ellis | 1976 |
| Alternaria paragomphrenae | Jun. Nishikawa & C. Nakash. | 2020 |
| Alternaria paralinicola | Woudenb. & Crous | 2014 |
| Alternaria parvicaespitosa | Gannibal & D.P. Lawr. | 2016 |
| Alternaria passiflorae | J.H. Simmonds | 1938 |
| Alternaria patula | H.C. Wu & W.S. Wu | 2005 |
| Alternaria peglionii | Curzi | 1926 |
| Alternaria pellucida | E.G. Simmons | 1990 |
| Alternaria penicillata | (Corda) Woudenb. & Crous | 2013 |
| Alternaria peponicola | (Rabenh.) E.G. Simmons | 1982 |
| Alternaria peponis | Yatel | 1938 |
| Alternaria perangusta | E.G. Simmons | 1999 |
| Alternaria perpunctulata | (E.G. Simmons) D.P. Lawr., M.S. Park & B.M. Pryor | 2012 |
| Alternaria petalicolor | (Sorokīn) E.G. Simmons | 1997 |
| Alternaria petasitis | M. Kubota, Kishi & Abiko | 1999 |
| Alternaria petroselini | (Neerg.) E.G. Simmons | 1976 |
| Alternaria petuchovskoi | Bilanenko, Georgieva & Grum-Grzhim. | 2015 |
| Alternaria peucedani | S.H. Yu | 2014 |
| Alternaria pharbiticola | X. Sun, Meng Zhang & T.Y. Zhang | 2005 |
| Alternaria pharbitis | T.Y. Zhang & W.Q. Chen | 2003 |
| Alternaria phaseolicola | Yatel | 1938 |
| Alternaria phaseoli-vulgaris | Sawada | 1958 |
| Alternaria philodendri | X.H. Zheng & P.K. Chi | 2000 |
| Alternaria photistica | E.G. Simmons | 1986 |
| Alternaria phragmospora | Emden | 1970 |
| Alternaria physalidis | H.F. Liu & J.X. Deng | 2019 |
| Alternaria pimpriana | V.G. Rao | 1963 |
| Alternaria pipionipisi | E.G. Simmons | 2007 |
| Alternaria planifunda | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria platycodonis | Z.Y. Zhang & H. Zhang | 2003 |
| Alternaria plumbaginis | G.P. Agarwal & N.D. Sharma | 1974 |
| Alternaria pluriseptata | (P. Karst. & Har.) Jørst. | 1945 |
| Alternaria poaceicola | Thambug., Camporesi & K.D. Hyde | 2017 |
| Alternaria pobletensis | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria podophylli | (Ellis & Everh.) P. Joly | 1964 |
| Alternaria polianthis | Mariappan, K. Babu & T.K. Kandasw. | 1977 |
| Alternaria polygoni | Meng Zhang & T.Y. Zhang | 2007 |
| Alternaria polymorpha | L. Planchon | 1900 |
| Alternaria polypodii | T.G. Major | 1922 |
| Alternaria polypodiicola | Sh. Kumar & Raghv. Singh | 2016 |
| Alternaria polytricha | (Cooke) E.G. Simmons | 2000 |
| Alternaria pomicola | A.S. Horne | 1920 |
| Alternaria poonensis | Ragunath | 1963 |
| Alternaria populi | T.Y. Zhang | 2003 |
| Alternaria populicola | Gannibal & D.P. Lawr. | 2018 |
| Alternaria porri | (Ellis) Cif. | 1930 |
| Alternaria postmessia | E.G. Simmons | 2007 |
| Alternaria prasonis | E.G. Simmons | 2007 |
| Alternaria pratensis | Y.M. Wu & T.Y. Zhang | 2009 |
| Alternaria preussii | Gannibal & D.P. Lawr. | 2018 |
| Alternaria primulae | Sawada | 1958 |
| Alternaria proteae | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria protenta | E.G. Simmons | 1986 |
| Alternaria pruni | McAlpine | 1902 |
| Alternaria prunicola | Chethana, J.Y. Yan, X.H. Li & K.D. Hyde | 2019 |
| Alternaria pseudobotrytis | Gannibal & D.P. Lawr. | 2018 |
| Alternaria pseudoeichhorniae | Chethana, J.Y. Yan, X.H. Li & K.D. Hyde | 2019 |
| Alternaria pseudoinfectoria | J.F. Li, Camporesi, Bhat & Phookamsak | 2022 |
| Alternaria pseudorostrata | E.G. Simmons | 1996 |
| Alternaria pseudoventricosa | Iturrieta-González, Dania García & Gené | 2019 |
| Alternaria pulcherrimae | T.Y. Zhang & J.C. David | 1996 |
| Alternaria pulvinifungicola | E.G. Simmons | 2007 |
| Alternaria puttemansii | (Henn.) P. Joly | 1964 |
| Alternaria qualeae | Dorn.-Silva & Dianese | 2003 |
| Alternaria quercicola | Woudenb. & Mirab. | 2016 |
| Alternaria quercus | T.Y. Zhang, J.Z. Zhang & W.Q. Chen | 1999 |
| Alternaria radicina | Meier, Drechsler & E.D. Eddy | 1922 |
| Alternaria ramulosa | (Sacc.) P. Joly | 1964 |
| Alternaria ranunculi | E.G. Simmons | 2007 |
| Alternaria raphani | J.W. Groves & Skolko | 1944 |
| Alternaria readeri | (G. Winter) Neerg. | 1945 |
| Alternaria resedae | Neerg. | 1945 |
| Alternaria rhadina | E.G. Simmons | 1993 |
| Alternaria rhapontici | (Nelen) Gannibal | 2018 |
| Alternaria rhaponticicola | X. Sun & T.Y. Zhang | 2007 |
| Alternaria rhizophorae | E.G. Simmons | 2007 |
| Alternaria rhoicola | T.Y. Zhang & J.Z. Zhang | 1999 |
| Alternaria ribis | Bubák & Ranoj. | 1910 |
| Alternaria ricini | (Yoshii) Hansf. | 1943 |
| Alternaria rosae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria rosa-sinensis | M.X. Gao & T.Y. Zhang | 2000 |
| Alternaria roseogrisea | R.G. Roberts | 2008 |
| Alternaria rosicola | (V.G. Rao) T.Y. Zhang & Y.L. Guo | 1998 |
| Alternaria rosifolii | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria rostellata | E.G. Simmons | 1996 |
| Alternaria rostroconidia | J.F. Li, Camporesi, Bhat & Phookamsak | 2022 |
| Alternaria rudbeckiae | Nelen | 1962 |
| Alternaria rumicicola | R.L. Mathur, Agnihotri & Tyagi | 1962 |
| Alternaria rumicis | Brahmanage, Camporesi & K.D. Hyde | 2020 |
| Alternaria salicorniae | Riedl & Ershad | 1977 |
| Alternaria sanguisorbae | M.X. Gao & T.Y. Zhang | 2000 |
| Alternaria saparva | (Subram.) Deighton | 1969 |
| Alternaria sapindi | Rajd. | 1966 |
| Alternaria saponariae | (Peck) Neerg. | 1938 |
| Alternaria saposhnikoviae | J.Z. Zhang & T.Y. Zhang | 2003 |
| Alternaria sauropodis | E.G. Simmons | 2007 |
| Alternaria scirpinfestans | (E.G. Simmons & D.A. Johnson) Woudenb. & Crous | 2013 |
| Alternaria scirpivora | (E.G. Simmons & D.A. Johnson) Woudenb. & Crous | 2013 |
| Alternaria scorzonerae | (Aderh.) Loer. | 1984 |
| Alternaria scrophulariae | (Desm.) Rossman & Crous | 2015 |
| Alternaria seleniiphila | Wangeline & E.G. Simmons | 2007 |
| Alternaria selini | E.G. Simmons | 1995 |
| Alternaria senecionicola | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria senecionis | Neerg. | 1946 |
| Alternaria sennae | Woudenb. & Crous | 2014 |
| Alternaria septorioides | (Westend.) E.G. Simmons | 2007 |
| Alternaria septospora | (Preuss) Woudenb. & Crous | 2013 |
| Alternaria sesami | (E. Kawam.) Mohanty & Behera | 1958 |
| Alternaria sesamicola | E. Kawam. | 1931 |
| Alternaria setariae | T.Y. Zhang | 1999 |
| Alternaria shaanxiensis | T.Y. Zhang & J.Z. Zhang | 1999 |
| Alternaria shukurtuzi | Bilanenko, Georgieva & Grum-Grzhim. | 2015 |
| Alternaria sidae | E.G. Simmons | 2003 |
| Alternaria silybi | Gannibal | 2011 |
| Alternaria simmonsii | Gannibal | 2011 |
| Alternaria simsimi | E.G. Simmons | 2004 |
| Alternaria slovaca | (Svob.-Pol.) Woudenb. & Crous | 2013 |
| Alternaria smyrnii | (P. Crouan & H. Crouan) E.G. Simmons | 1995 |
| Alternaria sojae | Meng Zhang & T.Y. Zhang | 2008 |
| Alternaria solani | Sorauer | 1896 |
| Alternaria solani-nigri | R. Dubey, S.K. Singh & Kamal | 1999 |
| Alternaria soliaegyptiaca | E.G. Simmons | 2007 |
| Alternaria soliaridae | E.G. Simmons | 2007 |
| Alternaria solidaccana | E.G. Simmons | 2007 |
| Alternaria somniferi | (Har. & Briard) Sawada | 1958 |
| Alternaria sonchi | Davis | 1916 |
| Alternaria sorghi | (X.G. Zhang & T.Y. Zhang) Gannibal & D.P. Lawr. | 2018 |
| Alternaria sorghicola | E.G. Simmons | 2007 |
| Alternaria spadicea | (Thüm.) E.G. Simmons | 2003 |
| Alternaria stachytarpheticola | E.G. Simmons | 2007 |
| Alternaria steviae | Ishiba, T. Yokoy. & Tani | 1982 |
| Alternaria striiformis | (Syd. & P. Syd.) P. Joly | 1964 |
| Alternaria subcucurbitae | (Yong Wang bis & X.G. Zhang) Woudenb. & Crous | 2013 |
| Alternaria subelliptica | E.G. Simmons | 2002 |
| Alternaria subtropica | E.G. Simmons | 2000 |
| Alternaria subulata | E.G. Simmons | 1994 |
| Alternaria sudanensis | E.G. Simmons | 2007 |
| Alternaria suffruticosae | Meng Zhang, Z.S. Chen & T.Y. Zhang | 2008 |
| Alternaria suffruticosicola | Meng Zhang, Z.S. Chen & T.Y. Zhang | 2008 |
| Alternaria sylvestris | Gannibal & D.P. Lawr. | 2018 |
| Alternaria tabacina | (Ellis & Everh.) Hori | 1903 |
| Alternaria tagetica | S.K. Shome & Mustafee | 1966 |
| Alternaria tamaricis | T.Y. Zhang | 2003 |
| Alternaria tamijiana | Rajd. | 1966 |
| Alternaria tangelonis | E.G. Simmons | 1999 |
| Alternaria tellustris | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria tenuissima | (Kunze) Wiltshire | 1933 |
| Alternaria terricola | Woudenb. & Crous | 2013 |
| Alternaria thalictricola | Y.L. Guo | 1999 |
| Alternaria thalictrigena | K. Schub. & Crous | 2007 |
| Alternaria thalictrina | Ondřej | 1974 |
| Alternaria thlaspis | (E.G. Simmons & J.C. David) D.P. Lawr., Rotondo & Gannibal | 2015 |
| Alternaria thunbergiae | E.G. Simmons & Alcorn | 2007 |
| Alternaria tillandsiae | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria tinosporae | E.G. Simmons | 2007 |
| Alternaria tomaticola | E.G. Simmons & Chellemi | 2007 |
| Alternaria tomato | (Cooke) L.R. Jones | 1896 |
| Alternaria torilis | J.F. Li, Camporesi, Bhat & Phookamsak | 2022 |
| Alternaria toxicogenica | E.G. Simmons | 1999 |
| Alternaria trachelospermi | T.Y. Zhang, X.F. Lin & W.Q. Chen | 1999 |
| Alternaria trachelospermicola | (T.Y. Zhang, X.F. Lin & W.Q. Chen) E.G. Simmons | 2007 |
| Alternaria traversoi | Peyronel | 1913 |
| Alternaria triangularis | Jun. Nishikawa & C. Nakash. | 2020 |
| Alternaria tribuli | Meng Zhang & T.Y. Zhang | 2008 |
| Alternaria triglochinicola | Alcorn & S.M. Francis | 1993 |
| Alternaria triticicola | V. Rao | 1964 |
| Alternaria triticimaculans | E.G. Simmons & Perelló | 1994 |
| Alternaria triticina | Prasada & Prabhu | 1963 |
| Alternaria tropaeoli | K.B. Deshp. & Rajd. | 1964 |
| Alternaria tropaeolicola | T.Y. Zhang | 2003 |
| Alternaria tropica | E.G. Simmons | 1993 |
| Alternaria tuberculata | Meng Zhang & T.Y. Zhang | 2006 |
| Alternaria tumida | (E.G. Simmons) Woudenb. & Crous | 2013 |
| Alternaria turkisafria | E.G. Simmons | 1999 |
| Alternaria typhonii | T.Y. Zhang & J.Z. Zhang | 1999 |
| Alternaria ulmi | (Fuckel) E.G. Simmons | 1995 |
| Alternaria umbellifericola | Ragunath | 1966 |
| Alternaria undulata | R.G. Roberts | 2008 |
| Alternaria uredinis | (Ellis & Barthol.) E.G. Simmons | 2007 |
| Alternaria vaccariae | (Săvul. & Sandu) E.G. Simmons & S.T. Koike | 2002 |
| Alternaria vaccariicola | E.G. Simmons | 2007 |
| Alternaria vaccinii | E.G. Simmons | 2007 |
| Alternaria vanuatuensis | E.G. Simmons & C.F. Hill | 2007 |
| Alternaria varians | L. Planchon | 1900 |
| Alternaria venezuelensis | E.G. Simmons & Rumbos | 2007 |
| Alternaria ventricosa | R.G. Roberts | 2007 |
| Alternaria viburni | E.G. Simmons | 2002 |
| Alternaria viciae-fabae | E.G. Simmons & G.F. Laundon | 2007 |
| Alternaria viniferae | Yong Wang bis, Y.Y. Than, K.D. Hyde & Xing H. Li | 2014 |
| Alternaria violae | L.D. Galloway & Dorsett | 1900 |
| Alternaria vitis | Cavara | 1888 |
| Alternaria vulgaris | L. He & J.X. Deng | 2021 |
| Alternaria xiaochaidanensis | D.C. Li & F. Wang | 2013 |
| Alternaria yali-inficiens | R.G. Roberts | 2005 |
| Alternaria yerbae | (Speg.) P. Joly | 1964 |
| Alternaria yunnanensis | Z.Y. Cai, X.Y. Liu, Y.X. Liu & Y.P. Shi | 2019 |
| Alternaria zantedeschiae | (X.G. Zhang & T.Y. Zhang) Gannibal & D.P. Lawr. | 2018 |
| Alternaria zhengzhouensis | T.Y. Zhang | 2003 |
| Alternaria zinniae | M.B. Ellis | 1972 |