This is a list of genera in the fungal division Ascomycota with uncertain taxonomic placement (incertae sedis). These genera have not yet been assigned to any class, order, or family. The compendium is based on the 2021 work "Outline of Fungi and fungus-like taxa", which lists 1148 Ascomycota genera incertae sedis.

A

Abropelta – 1 sp. Acarellina – 1 sp. Acaroconium – 1 sp. Acarocybe – 3 spp. Acarocybella – 1 sp. Acarocybellina – 1 sp. Acarocybiopsis – 1 sp. Acaropeltis – 1 sp. Achoropeltis – 1 sp. Acleistia – 1 sp. Acontium – 4 spp. Acrodictyella – 1 sp. Acrodictyopsis – 1 sp. Acrodontiella – 1 sp. Acrophragmis – 4 spp. Acrospeira – 1 sp. Acrostaurus – 1 sp. Actinocladium – 6 spp. Actinotexis – 1 sp. Actinothecium – 5 spp. Actinothyrium – 10 spp. Acumispora – 5 spp. Agaricodochium – 1 sp. Agarwalomyces – 1 sp. Agrabeeja – 1 sp. Agyriella – 2 spp. Agyriellopsis – 3 spp. Ahmadia – 1 sp. Ajrekarella – 1 sp. Alatosessilispora – 1 sp. Alciphila – 1 sp. Algonquinia – 1 sp. Allophoron – 1 sp. Allothyriella – 3 spp. Allothyrina – 1 sp. Allothyriopsis – 1 sp. Alpakesa – 4 spp. Alpakesiopsis – 1 sp. Alveariospora – 1 sp. Alveophoma – 1 sp. Alysidiopsis – 5 spp. Amallospora – 1 sp. Amblyosporium – 4 spp. Ameroconium – 1 sp. Amerodiscosiella – 1 sp. Amerodiscosiellina – 1 sp. Amerosporiopsis – 2 spp. Amerosympodula – 1 sp. Amoenodochium – 1 sp. Amoenomyces – 1 sp. Amphichaetella – 1 sp. Amphophialis – 1 sp. Amphoropycnium – 1 sp. Ampullicephala – 1 sp. Ampulliferina – 2 spp. Amylogalla – 1 sp. Anabahusakala – 1 sp. Anacraspedodidymum – 2 spp. Anaexserticlava – 1 sp. Anaphysmene – 2 spp. Anarhyma – 1 sp. Anaselenosporella – 2 spp. Anaseptoidium – 1 sp. Anasporidesmiella – 2 spp.* Anaverticicladus – 1 sp. Ancoraspora – 1 sp. Ancorasporella – 1 sp. Angiopomopsis – 1 sp. Angulimaya – 1 sp. Angulospora – 1 sp. Annellodentimyces – 1 sp. Annellodochium – 1 sp. Annellophorella – 5 spp. Annellospermosporella – 1 sp. Antennatula – 10 spp. Anthracoderma – 3 spp. Antimanoa – 1 sp. Antromyces – 4 spp. Anulohypha – 1 sp. Anungitopsis – 7 spp. Aoria – 1 sp. Aphanofalx – 2 spp. Apiocarpella – 8 spp. Apiotypa – 1 sp. Apogloeum – 1 sp. Apomelasmia – 8 spp. Aporellula – 2 spp. Aposporella – 1 sp. Apostrasseria – 2 spp. Arachnophora – 11 sp. Arachnospora – 1 sp. Arborillus – 1 sp. Arborispora – 4 spp. Arcuadendron – 2 spp. Ardhachandra – 3 spp. Argentinomyces – 1 sp. Argopericonia – 2 spp. Aristastoma – 1 sp. Arthopyreniomyces – 1 sp. Arthrobotryum – 5 spp. Arthromoniliphora – 1 sp. Arthrosporium – 2 spp. Arthrowallemia – 2 spp. Articulophora – 1 sp. Artocarpomyces – 1 sp.* Ascochytopsis – 5 spp. Ascochytulina – 3 spp. Ascocorticiellum – 1 sp. Ascofascicula – 6 spp. Ascomauritiana – 1 sp. Ascosubramania – 1 sp. Ascoxyta – 1 sp. Ashtaangam – 1 sp. Aspilaima – 1 sp. Astelechia – 2 spp. Asterinothyriella – 3 spp. Asterinothyrium – 1 sp. Asteroconium – 2 spp. Asteromyces – 1 sp. Asterophoma – 1 sp. Asteroscutula – 1 sp. Asterostomopora – 1 sp. Asterostomopsis – 1 sp. Asterostomula – 4 spp. Asterostomulina – 1 sp. Astomella – 1 sp. Astronatelia – 1 sp. Atractilina – 2 spp. Atractobolus – 1 sp. Atrosetaphiale – 1 sp. Atrosynnema – 1 sp. Aurosphaeria – 1 sp. Avesicladiella – 2 spp. Avettaea – 3 spp.

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B

Bacillopeltis – 1 sp. Bactridium – 15 spp. Bactrodesmiella – 2 spp. Baculospora – 1 sp. Badarisama – 1 sp. Bahuchashaka – 1 sp. Bahugada – 2 spp. Bahukalasa – 1 sp. Balaniopsis – 4 spp. Balanium – 1 sp. Barbarosporina – 1 sp. Barnettella – 1 sp. Basauxia – 1 sp. Batistina – 1 sp. Batistospora – 1 sp. Beauveriphora – 1 sp. Beccopycnidium – 1 sp. Beejadwaya – 1 sp. Belemnospora – 7 spp. Bellulicauda – 2 spp. Beltramono – 1 sp. Beltraniomyces – 1 sp. Beniowskia – 4 spp. Benjpalia – 1 sp. Berggrenia – 2 spp. Bhadradriella – 1 sp. Bhadradriomyces – 1 sp. Bharatheeya – 3 spp. Bhatia – 2 spp. Biatoridium – 4 spp. Bibanasiella – 1 sp. Bicoloromyces – 1 sp. Biflagellospora – 1 sp. Biflagellosporella – 1 sp. Biflua – 1 sp. Bimeris – 1 sp. Bioconiosporium – 2 spp. Biophomopsis – 3 spp. Bisbyopeltis – 1 sp. Bispora – 31 spp. Bisseomyces – 1 sp. Blastocatena – 2 spp. Blastodictys – 1 sp. Blastofusarioides – 1 sp. Blastophorella – 1 sp. Blastophragma – 4 spp. Blastophragmia – 1 sp.* Blennoria – 4 spp. Blennoriopsis – 1 sp. Bleptosporium – 4 spp. Blodgettia – 2 spp. Bostrichonema – 4 spp. Botryoderma – 4 spp. Botryodiplodina – 1 sp. Botryomonilia – 1 sp. Botryostroma – 2 spp. Brachycephala – 1 sp. Brachydesmiella – 8 spp. Brachysporiellina – 2 spp. Brachysporiopsis – 1 sp. Braunomyces – 1 sp. Brefeldiopycnis – 1 sp. Brencklea – 1 sp. Brevicatenospora – 1 sp. Briosia – 6 spp. Brycekendrickia – 1 sp. Brykendrickia – 1 sp.* Bryophytomyces – 1 sp. Bulbilopycnis – 1 sp. Bulbocatenospora – 1 sp. Bullaserpens – 1 sp.

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C

Cacumisporium – 9 spp. Caeruleoconidia – 2 spp. Calcarispora – 1 sp. Calceispora – 2 spp. Callistospora – 1 sp. Calocline – 1 sp. Calongeomyces – 1 sp. Camaroglobulus – 1 sp. Camaropycnis – 1 sp. Camarosporellum – 1 sp. Camarosporiopsis – 1 sp. Camposporidium – 3 spp. Candelabrum – 7 spp. Candelosynnema – 1 sp. Capitorostrum – 1 sp. Capnocheirides – 1 sp. Capnofrasera – 1 sp. Capsicumyces – 1 sp. Carnegieispora – 1 sp. Carnia – 1 sp. Carrismyces – 1 sp. Casaresia – 1 sp. Castanedaea – 1 sp. Catenocuneiphora – 1 sp. Catenophora – 3 spp. Catenophoropsis – 1 sp. Catenosubulispora – 1 sp. Catenosynnema – 1 sp. Catenulaster – 1 sp. Catinopeltis – 1 sp. Cecidiomyces – 1 sp. Ceeveesubramaniomyces – 1 sp. Cerastoma Ceratocladium – 2 spp. Ceratophorum – 2 spp. Ceratopycnis – 2 spp. Ceratosporella – 19 spp. Ceratosporium – 11 spp. Ceuthodiplospora – 1 sp. Ceuthosira – 1 sp. Ceuthosporella – 1 sp. Chaetendophragmia – 7 spp. Chaetoblastophorum – 1 sp. Chaetochalara – 7 spp. Chaetocytostroma – 1 sp. Chaetodiplis – 1 sp. Chaetodiplodina – 2 spp. Chaetopeltaster – 1 sp. Chaetophiophoma – 1 sp. Chaetoplaca – 1 sp. Chaetopsis – 7 spp. Chaetopyrena – 2 spp. Chaetoseptoria – 1 sp. Chalarodendron – 1 sp. Chalarodes – 2 spp. Chantransiopsis – 3 spp. Characonidia – 1 sp. Charomyces – 2 spp. Chasakopama – 1 sp. Cheilaria – 1 sp. Cheiroidea – 1 sp. Cheiromycella – 3 spp. Cheiromyceopsis – 1 sp. Cheiromyces – 6 spp. Cheiropolyschema – 2 spp. Chiastospora – 1 sp. Chithramia – 1 sp. Chlamydopsis – 1 sp. Choanatiara – 2 spp. Choreospora – 1 sp. Chrysachne – 2 spp. Chrysalidopsis – 1 sp. Chryseidea – 1 sp. Ciferria – 1 sp. Ciferrina – 1 sp. Ciferriopeltis – 1 sp. Ciferrioxyphium – 2 spp. Ciliochora – 2 spp. Ciliophora – 2 spp. Ciliophorella – 2 spp. Ciliosporella – 2 spp. Circinoconiopsis – 1 sp. Circinoconis – 1 sp. Cissococcomyces – 1 sp. Civisubramaniania – 2 spp. Cladoconidium – 1 sp. Cladoniicola – 2 spp. Cladosphaera – 1 sp. Cladosporiopsis – 1 sp. Clasteropycnis – 1 sp. Clathroconium – 2 spp. Clathroporinopsis Clauzadeomyces – 1 sp. Clavariana – 1 sp. Cleistocystis – 1 sp. Cleistonium – 1 sp. Cleistophoma – 2 spp. Clypeochorella – 1 sp. Clypeolum – 8 spp. Clypeopatella – 1 sp. Clypeophialophora – 1 sp. Clypeopycnis – 3 spp. Clypeoseptoria – 3 spp. Clypeostagonospora – 1 sp. Coccogloeum – 1 sp. Codonmyces – 1 sp. Colemaniella – 1 sp. Coleodictyospora – 2 spp. Coleoseptoria – 1 sp. Colispora – 3 spp. Colletoconis – 1 sp. Colletosporium – 1 sp. Collostroma – 1 sp. Columnodomus – 1 sp. Columnothyrium – 1 sp. Comatospora – 1 sp. Comocephalum – 1 sp. Complexipes – 2 spp. Condylospora – 4 spp. Coniambigua – 1 sp. Conioscyphopsis – 1 sp. Coniothyrina – 1 sp. Conjunctospora – 1 sp. Conostoma – 2 spp. Conostroma – 3 spp. Consetiella – 1 sp. Copromyces – 1 sp.* Coremiella – 1 sp. Cornucopiella – 2 spp. Cornutostilbe – 1 sp. Coronospora – 4 spp. Corynecercospora – 1 sp. Coryneliella – 1 sp. Corynesporella – 11 spp. Corynesporina – 1 sp. Corynesporopsis – 16 spp. Costanetoa – 1 sp. Crandallia – 4 spp. Craneomyces – 1 sp. Craspedodidimella – 1 sp. Creodiplodina – 1 sp. Creonecte – 1 sp. Creoseptoria – 1 sp. Creothyriella – 1 sp. Cribropeltis – 1 sp. Crinigera – 1 sp. Crousobrauniella – 1 sp. Crustodiplodina – 1 sp. Cryptoceuthospora – 2 spp. Cryptocoryneopsis – 1 sp. Cryptosporium – 25 spp. Cryptumbellata – 1 sp. Ctenosporium – 1 sp. Cubasina – 2 spp. Culicidospora – 2 spp. Culicinomyces – 3 spp. Curucispora – 3 spp. Curvulariopsis – 1 sp. Cyanopatella – 1 sp. Cyanopyrenia – 1 sp. Cyclomarsonina – 1 sp. Cylindrogloeum – 1 sp. Cylindromyces – 1 sp.* Cylindrothyrium – 1 sp. Cylindroxyphium – 1 sp. Cyrtidium – 1 sp. Cyrtidula – ca. 5 spp. Cyrtopsis – 1 sp. Cystodium – 1 sp. Cystotricha – 1 sp. Cytodiscula – 1 sp. Cytogloeum – 1 sp. Cytonaema – 2 spp. Cytoplacosphaeria – 2 spp. Cytosphaera – 2 spp. Cytosporella – 32 spp. Cyttariella – 1 sp.

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D

Dactylifera – 1 sp. Dactylosporium – 2 spp. Dasysticta – 2 spp. Davisiella – 2 spp. Deichmannia – 1 sp. Delortia – 3 spp. Dendrodomus – 1 sp. Dendrographiella – 1 sp. Dendrographium – 8 spp. Dendrospora – 10 spp. Dendrosporium – 2 spp. Dendryphiosphaera – 4 spp. Dennisographium – 2 spp. Dentocircinomyces – 1 sp. Descalsia – 1 sp. Desertella – 2 spp. Desmidiospora – 3 spp. Dexhowardia – 1 sp. Diaboliumbilicus – 1 sp. Diademospora – 1 sp. Diarimella – 3 spp. Dichelostroma – 1 sp. Dicholobodigitus – 1 sp. Dichotomophthoropsis – 2 spp. Dichotophora – 2 spp. Dictyoceratosporella – 3 spp. Dictyophrynella – 1 sp. Dictyopolyschema – 1 sp. Dictyorostrella – 1 sp. Dictyospiropes – 1 sp. Dictyotrichocladium – 1 sp. Didymochaetina – 1 sp. Didymopsis – 5 spp. Didymosporina – 1 sp. Diedickea – 3 spp. Digicatenosporium – 1 sp. Digitodochium – 1 sp. Digitopodium – 1 sp. Digitoramispora – 4 spp. Dimastigosporium – 2 spp. Diplocladiella – 8 spp. Diplodinis – 1 sp. Diplodinula – 1 sp. Diploplenodomus – 2 spp. Diplosporonema – 1 sp. Diplozythiella – 1 sp. Dipyrgis – 1 sp. Discogloeum – 1 sp. Discomycetoidea – 1 sp. Discosiellina – 1 sp. Discosporina – 1 sp. Discotheciella – 1 sp. Discozythia – 1 sp. Dissitimurus – 1 sp. Distobactrodesmium – 1 sp.* Distophragmia – 1 sp. Ditangifibula – 1 sp. Domingoella – 4 spp. Dothideodiplodia – 1 sp. Dothioropsis – 1 sp. Drepanospora – 1 sp. Drudeola – 1 sp. Drumopama – 1 sp. Dryosphaera – 3 spp. Dualomyces – 2 spp. Dwayabeeja – 3 spp. Dwayaloma – 1 sp. Dwayalomella – 1 sp. Dwibahubeeja – 1 sp. Dwibeeja – 1 sp. Dwiroopella – 1 sp.

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E

Ebollia – 1 sp. Echinocatena – 1 sp. Echinochondrium – 1 sp. Echinoconidiophorum – 1 sp. Effetia – 1 sp.* Eiona – 1 sp. Elachopeltella – 2 spp. Elattopycnis – 1 sp. Elegantimyces – 1 Ellisembiopsis – 2 spp. Ellismarsporium – 7 spp. Elotespora – 1 sp. Embryonispora – 1 sp. Enantioptera – 2 spp. Endobotrya – 1 sp. Endobotryella – 1 sp. Endocolium – 1 sp. Endoconospora – 2 spp. Endocoryneum – 3 spp. Endogenospora – 1 sp. Endomelanconium – 4 spp. Endophragmiella – ca. 80 spp.* Endophragmiopsis – 2 spp. Endoplacodium – 1 sp. Endoramularia – 1 sp. Endosporoideus – 1 sp. Endozythia – 1 sp. Enerthidium – 1 sp. Engelhardtiella – 1 sp. Enridescalsia – 1 sp. Enthallopycnidium – 1 sp. Entoderma – 1 sp. Epaphroconidia – 1 sp. Ephelidium – 1 sp. Epiclinium – 2 spp. Epicoccospora – 2 spp. Episporogoniella – 1 sp. Epistigme – 2 spp. Epithyrium – 2 spp. Eriocercospora – 3 spp. Eriospora – 1 sp. Erispora – 1 sp. Esteya – 1 sp. Evanidomus – 1 sp. Everhartia – 6 spp. Everniicola – 1 sp. Eversia – 2 spp. Excipularia – 2 spp. Exophoma – 1 sp. Exosporella – 1 sp. Exosporodiella – 1 sp.

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F

Fairmaniella – 1 sp. Farriolla – 1 sp. Favostroma – 1 sp. Feltgeniomyces – 4 spp. Fenestroconidia – 1 sp. Fissuricella – 1 sp. Flabellocladia – 2 spp. Flabellospora – 6 spp. Flosculomyces – 2 spp. Frigidispora – 1 sp. Fujimyces – 2 spp. Fuligomyces – 4 spp.