Full Fungi List
978 Records
| Scientific Name | Phylum | Class | Order | Family | Subject Name | Number of States |
|---|---|---|---|---|---|---|
| Agaricus campestris | Basidiomycota | Agaricomycetes | Agaricales | Agaricaceae | meadow mushroom | 4 |
| Albugo candida | Oomycota | Oomycetes | Albuginales | Albuginaceae | white rust | 38 |
| Albugo ipomoeae-aquaticae | Oomycota | Oomycetes | Albuginales | Albuginaceae | white rust | 1 |
| Albugo occidentalis | Oomycota | Oomycetes | Albuginales | Albuginaceae | white rust | 1 |
| Albugo tragopogonis | Oomycota | Oomycetes | Albuginales | Albuginaceae | white rust | 4 |
| Allantophomopsis cytisporea | Ascomycota | Leotiomycetes | Helotiales | Phacidiaceae | black rot | 1 |
| Allantophomopsis lycopodina | Ascomycota | Leotiomycetes | Helotiales | Phacidiaceae | black rot | 1 |
| Alternaria alternata | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | brown spot | 39 |
| Alternaria brassicae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | black spot | 30 |
| Alternaria brassicicola | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | black spot | 3 |
| Alternaria carthami | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 2 |
| Alternaria cucumerina | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria leaf blight | 7 |
| Alternaria dauci | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 3 |
| Alternaria destruens | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 1 |
| Alternaria helianthi | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | sunflower stem spot and head rot | 3 |
| Alternaria macrospora | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf spot | 2 |
| Alternaria palandui | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 1 |
| Alternaria porri | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | purple blotch | 4 |
| Alternaria solani | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | early blight | 43 |
| Alternaria tenuissima | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 4 |
| Alternaria tomatophila | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 1 |
| Alternaria triticina | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 1 |
| Alternaria zinniae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Alternaria blight | 1 |
| Ampelomyces quisqualis | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | powdery mildew hyperparasite | 1 |
| Amylostereum chailletii | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | Amylostereum rot | 1 |
| Anisogramma anomala | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Eastern filbert blight | 3 |
| Anthracoidea caricis | Basidiomycota | Ustilaginomycetes | Ustilaginales | Anthracoideaceae | smut | 2 |
| Antrodia heteromorpha | Basidiomycota | Agaricomycetes | Polyporales | Meripilaceae | wood decay | 1 |
| Antrodia juniperina | Basidiomycota | Agaricomycetes | Polyporales | Meripilaceae | wood decay | 1 |
| Antrodia serialis | Basidiomycota | Agaricomycetes | Polyporales | Meripilaceae | wood decay | 8 |
| Aphanomyces cochlioides | Oomycota | Oomycetes | Saprolegniales | Leptolegniaceae | damping-off | 6 |
| Aphanomyces euteiches f.sp. pisi | Oomycota | Oomycetes | Saprolegniales | Leptolegniaceae | damping-off | 1 |
| Aphanomyces euteiches | Oomycota | Oomycetes | Saprolegniales | Leptolegniaceae | damping-off | 7 |
| Apiognomonia errabunda | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | oak anthracnose | 5 |
| Apiognomonia quercina | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | anthracnose | 3 |
| Apiognomonia veneta | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | sycamore anthracnose | 10 |
| Apiosporina morbosa | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | black knot | 34 |
| Armillaria calvescens | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 1 |
| Armillaria gallica | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 3 |
| Armillaria gemina | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 1 |
| Armillaria mellea | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 40 |
| Armillaria sinapina | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 1 |
| Armillaria solidipes | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 2 |
| Armillaria tabescens | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | Armillaria root rot | 5 |
| Arthuriomyces peckianus | Basidiomycota | Urediniomycetes | Uredinales | Phragmidiaceae | orange rust | 1 |
| Articularia quercina | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | leaf mold | 1 |
| Ascochyta gossypii | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Ascochyta blight of cotton | 2 |
| Ascochyta lentis | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Ascochyta blight | 1 |
| Ascochyta pisi | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Ascochyta leaf blight | 3 |
| Ascochyta rabiei | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Ascochyta blight of chickpea | 1 |
| Ascochyta sorghi | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | sorghum rough leaf spot | 7 |
| Aspergillus flavus | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Aspergillus ear and kernel rot | 16 |
| Aspergillus niger | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | black mold | 7 |
| Aspergillus parasiticus | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Aspergillus fungus | 3 |
| Aspergillus tamarii | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Aspergillus fungus | 1 |
| Asperisporium caricae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | black spot of papaya | 1 |
| Aureobasidium apocryptum | Ascomycota | Dothideomycetes | Incertae sedis | Dothioraceae | anthracnose | 1 |
| Aureobasidium microstictum | Ascomycota | Dothideomycetes | Incertae sedis | Dothioraceae | anthracnose | 3 |
| Aureobasidium pullulans | Ascomycota | Dothideomycetes | Incertae sedis | Dothioraceae | russet of apple | 2 |
| Beauveria bassiana | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | white muscadine disease | 2 |
| Bifusella linearis | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Bifusella saccata | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Bipolaris iridis | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf spot | 1 |
| Bipolaris maydis | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Southern corn leaf blight and stalk rot | 31 |
| Bipolaris sorokiniana | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Cochliobolus leaf spot | 34 |
| Bipolaris spicifera | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Bipolaris fungus | 1 |
| Bipolaris victoriae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf spot | 10 |
| Bipolaris zeicola | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf spot of maize | 14 |
| Biscogniauxia atropunctata | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | Hypoxylon canker | 2 |
| Bjerkandera adusta | Basidiomycota | Agaricomycetes | Polyporales | Meruliaceae | wood rot | 11 |
| Blumeria graminis | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 44 |
| Blumeria jaapii | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | cherry leaf spot | 1 |
| Blumeriella jaapii | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Blumeriella leaf spot of cherry and plum | 3 |
| Botryosphaeria dothidea | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Botryosphaeria canker | 9 |
| Botryosphaeria obtusa | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | black rot | 33 |
| Botryosphaeria rhodina | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Botryosphaeria canker | 2 |
| Botryosphaeria ribis | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Botryosphaeria canker | 24 |
| Botrytis allii | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | botrytis rot | 6 |
| Botrytis cinerea | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | gray mold | 44 |
| Botrytis convoluta | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Botryotinia blight | 1 |
| Botrytis elliptica | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Botrytis blight | 1 |
| Botrytis squamosa | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Botrytis leaf blight | 1 |
| Bremia lactucae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 14 |
| Caloscypha fulgens | Ascomycota | Pezizomycetes | Pezizales | Incertae sedis | fungus | 1 |
| Camarosporium celtidis | Ascomycota | Dothideomycetes | Incertae sedis | Cucurbitariaceae | fungus | 1 |
| Cantharellus cibarius | Basidiomycota | Agaricomycetes | Cantharellales | Cantharellaceae | chanterelle | 1 |
| Capnodium citri | Ascomycota | Dothideomycetes | Capnodiales | Capnodiaceae | Capnodium fungus | 1 |
| Cenangium alpinum | Ascomycota | Leotiomycetes | Helotiales | Helotiaceae | Cenangium canker | 1 |
| Cenangium ferruginosum | Ascomycota | Leotiomycetes | Helotiales | Helotiaceae | Cenangium limb canker | 1 |
| Cenangium singulare | Ascomycota | Leotiomycetes | Helotiales | Helotiaceae | Cenangium canker | 1 |
| Cephalosporium gramineum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Cephalosporium stripe | 3 |
| Ceratobasidium cereale | Basidiomycota | Agaricomycetes | Ceratobasidiales | Ceratobasidiaceae | sharp eyespot | 10 |
| Ceratobasidium stevensii | Basidiomycota | Agaricomycetes | Ceratobasidiales | Ceratobasidiaceae | leaf spot | 2 |
| Ceratocystis fagacearum | Ascomycota | Sordariomycetes | Microascales | Ceratocystidaceae | oak wilt | 6 |
| Ceratocystis fimbriata | Ascomycota | Sordariomycetes | Microascales | Ceratocystidaceae | black rot | 3 |
| Ceratocystis paradoxa | Ascomycota | Sordariomycetes | Microascales | Ceratocystidaceae | bitter leaf | 2 |
| Cercospora apii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora arachidicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 3 |
| Cercospora asparagi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora beticola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 9 |
| Cercospora brassicicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | white leaf spot | 2 |
| Cercospora canescens | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora capsici | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora carotae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | carrot leaf blight | 2 |
| Cercospora citrullina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 2 |
| Cercospora kikuchii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | purple seed stain | 12 |
| Cercospora longissima | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 2 |
| Cercospora mangiferae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Stigmina leaf spot | 1 |
| Cercospora medicaginis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 10 |
| Cercospora melongenae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora muehlenbergiae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora nicotianae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | frog-eye leafspot | 1 |
| Cercospora seminalis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 1 |
| Cercospora sequoiae junipera | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | juniper blight | 2 |
| Cercospora sojina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | frogeye leaf spot | 7 |
| Cercospora sorghi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 2 |
| Cercospora zeae-maydis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 19 |
| Cercospora zebrina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora leaf spot | 2 |
| Cercospora zeina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora blight | 1 |
| Cercosporidium graminis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella leaf spot | 7 |
| Cerotelium fici | Basidiomycota | Urediniomycetes | Uredinales | Phakopsoraceae | rust | 2 |
| Cerrena unicolor | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | canker rot | 13 |
| Choanephora cucurbitarum | Zygomycota | Zygomycetes | Mucorales | Choanephoraceae | Choanephora fruit rot | 6 |
| Chondrostereum purpureum | Basidiomycota | Agaricomycetes | Polyporales | Meruliaceae | silverleaf | 18 |
| Chrysomyxa arctostaphyli | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | spruce broom rust | 1 |
| Chrysomyxa ledicola | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | large-spored spruce-laborador tea/needle rust | 1 |
| Chrysomyxa pyrolae | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | rust | 4 |
| Chrysomyxa weirii | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | spruce needle rust | 1 |
| Ciborinia foliicola | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | fungal blight | 1 |
| Ciborinia seaveri | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | fungal blight | 1 |
| Ciborinia whetzelii | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | ink spot leaf blight | 2 |
| Cladobotryum dendroides | Ascomycota | Sordariomycetes | Hypocreales | Hypocreaceae | fungi | 1 |
| Cladosporium allii-cepae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Leaf blotch | 1 |
| Cladosporium caryigenum | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | pecan scab | 2 |
| Cladosporium cladosporioides | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cladosporium fungus | 1 |
| Cladosporium cucumerinum | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | scab | 2 |
| Cladosporium herbarum | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cladosporium fungus | 28 |
| Cladosporium iridis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Heterosporium leaf spot | 1 |
| Cladosporium oxycocci | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cladosporium fungus | 1 |
| Claviceps purpurea | Ascomycota | Sordariomycetes | Hypocreales | Clavicipitaceae | ergot | 35 |
| Claviceps zizaniae | Ascomycota | Sordariomycetes | Hypocreales | Clavicipitaceae | ergot | 1 |
| Climacodon septentrionalis | Basidiomycota | Agaricomycetes | Polyporales | Meruliaceae | northern tooth | 1 |
| Cochliobolus cynodontis | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Cochliobolus leaf spot | 3 |
| Cochliobolus lunatus | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Cochliobolus leaf spot / black kernel | 1 |
| Cochliobolus miyabeanus | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | brown spot of rice | 3 |
| Coleophoma empetri | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Coleophoma fungus | 1 |
| Coleosporium asterum | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | pine needle rust | 17 |
| Coleosporium crowellii | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | rust | 1 |
| Coleosporium jonesii | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | rust | 1 |
| Coleosporium plumeriae | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | rust | 2 |
| Coleosporium tussilaginis | Basidiomycota | Urediniomycetes | Uredinales | Coleosporiaceae | needle rust | 1 |
| Collecephalus hemerocallidis | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Collecephalus fungus | 1 |
| Colletotrichum acutatum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 13 |
| Colletotrichum artocarpi | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum capsici | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum cereale | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | Colletotrichum fungus | 5 |
| Colletotrichum circinans | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | onion smudge | 1 |
| Colletotrichum coccodes | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 8 |
| Colletotrichum dematium | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 22 |
| Colletotrichum destructivum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum fragariae | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 5 |
| Colletotrichum gloeosporioides | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | bitter rot | 45 |
| Colletotrichum gossypii | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | Anthracnose, pink boll rot or seedling blight of cotton | 1 |
| Colletotrichum graminicola | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 36 |
| Colletotrichum higginsianum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum lindemuthianum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | bean anthracnose | 12 |
| Colletotrichum musae | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum omnivorum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum orbiculare | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 21 |
| Colletotrichum pisi | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum trichellum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Colletotrichum trifolii | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 22 |
| Colletotrichum truncatum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 4 |
| Collybia semiusta | Basidiomycota | Agaricomycetes | Agaricales | Tricholomataceae | basal stem rot | 1 |
| Coniophora puteana | Basidiomycota | Agaricomycetes | Boletales | Coniophoraceae | wet rot | 1 |
| Coniothyrium concentricum | Ascomycota | Dothideomycetes | Pleosporales | Leptosphaeriaceae | Coniothyrium fungus | 1 |
| Coprinus atramentarius | Basidiomycota | Agaricomycetes | Agaricales | Coprinaceae | Tippler's bane | 1 |
| Coprinus comatus | Basidiomycota | Agaricomycetes | Agaricales | Coprinaceae | Shaggy mane | 1 |
| Cordana musae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Cordana fungus | 2 |
| Cordyceps militaris | Ascomycota | Sordariomycetes | Hypocreales | Clavicipitaceae | Cordyceps | 1 |
| Coriolopsis gallica | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | polypore fungus | 1 |
| Corticium koleroga | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | Corticium fungus | 1 |
| Coryneopsis rubi | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Coryneopsis leaf spot | 5 |
| Corynespora cassiicola | Ascomycota | Dothideomycetes | Incertae sedis | Corynesporascaceae | Corynespora blight | 7 |
| Craterellus cornucopioides | Basidiomycota | Agaricomycetes | Cantharellales | Cantharellaceae | black trumpet mushroom | 1 |
| Cronartium coleosporioides | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | stalactiform blister rust | 4 |
| Cronartium comandrae | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | comandra blister rust | 1 |
| Cronartium occidentale | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | pinyon blister rust | 1 |
| Cronartium quercuum | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | eastern pine gall rust | 21 |
| Cronartium ribicola | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | white pine blister rust | 9 |
| Cryphonectria gyrosa | Ascomycota | Sordariomycetes | Diaporthales | Incertae sedis | orange hobnail canker | 6 |
| Cryphonectria parasitica | Ascomycota | Sordariomycetes | Diaporthales | Incertae sedis | chestnut blight or canker | 9 |
| Cryptocline betularum | Ascomycota | Leotiomycetes | Helotiales | Incertae sedis | Cryptocline fungus | 1 |
| Cryptocline cyclaminis | Ascomycota | Leotiomycetes | Helotiales | Incertae sedis | Cryptocline fungus | 1 |
| Cryptodiaporthe corni | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cryptodiaporthe fungus | 1 |
| Cryptoporus volvatus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | veiled polypore | 1 |
| Cryptosphaeria ligniota | Ascomycota | Sordariomycetes | Xylariales | Diatrypaceae | Cryptosphaeria canker | 2 |
| Cryptosporella umbrina | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cryptosporella fungus | 2 |
| Cucurbitaria staphula | Ascomycota | Dothideomycetes | Incertae sedis | Cucurbitariaceae | Cucurbitaria fungus | 1 |
| Curvularia geniculata | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Curvularia fungus | 1 |
| Curvularia inaequalis | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Curvularia fungus | 1 |
| Curvularia trifolii | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Curvularia fungus | 1 |
| Cyathus stercoreus | Basidiomycota | Agaricomycetes | Agaricales | Nidulariaceae | Cyathus fungus | 3 |
| Cyathus striatus | Basidiomycota | Agaricomycetes | Agaricales | Nidulariaceae | bird's nest fungi | 1 |
| Cyclaneusma minus | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | Cyclaneusma needle cast | 2 |
| Cylindrobasidium corrugum | Basidiomycota | Agaricomycetes | Agaricales | Cylindrobasidiaceae | Cylindrobasidium fungus | 1 |
| Cylindrocarpon ianthothele | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Cylindrocarpon fungus | 1 |
| Cylindrocladium crotalariae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | stem rot | 1 |
| Cylindrocladium floridanum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Cylindrocladium fungus | 1 |
| Cylindrocladium parasiticum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Cylindrocladium black rot | 1 |
| Cylindrocladium pteridis | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Cylindrocladium fungus | 1 |
| Cylindrocladium scoparium | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Cylindrocladium blight and root rot | 2 |
| Cylindrosporium chrysanthemi | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Cylindrosporium leaf spot | 1 |
| Cylindrosporium salicinum | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Cylindrosporium leaf spot | 1 |
| Cylindrosporium saximontanense | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Cylindrosporium leaf spot | 1 |
| Cymadothea trifolii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 10 |
| Cytospora elaeagni | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cytospora cankers | 1 |
| Cytospora gleditschiae | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cytospora cankers | 1 |
| Cytospora negundinis | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cytospora cankers | 1 |
| Daedaleopsis confragosa | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | thin-walled maze polypore | 14 |
| Daldinia concentrica | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | carbon balls | 3 |
| Davidiella macrospora | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | iris leaf spot | 2 |
| Davisomycella medusa | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | Medusa needle blight | 1 |
| Davisomycella ponderosae | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needlecast | 1 |
| Deightoniella torulosa | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | black tip of fruit | 1 |
| Dendrophoma zeae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Dendrophoma leaf blight | 1 |
| Diaporthe citri | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | melanose | 3 |
| Diaporthe helianthi | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | Phomopsis stem canker | 1 |
| Diaporthe phaseolorum | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | pod and stem rot | 23 |
| Diaporthe phaseolorum var. caulivora | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | soybean stem canker | 4 |
| Diaporthe phaseolorum var. meridionalis | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | Diaporthe fungus | 3 |
| Diaporthe phaseolorum var. phaseolorum | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | Phomopsis blight | 23 |
| Diaporthe phaseolorum var. sojae | Ascomycota | Sordariomycetes | Diaporthales | Diaporthaceae | pod and stem blight | 5 |
| Dichomitus squalens | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | western red rot | 2 |
| Didymella bryoniae | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | gummy stem blight (vine decline) | 12 |
| Didymellina poecilospora | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Didymellina fungus | 1 |
| Diplocarpon earlianum | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | leaf scorch | 3 |
| Diplocarpon mespili | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Entomosporium leaf spot | 19 |
| Diplocarpon rosae | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | black spot | 22 |
| Diplodia frumenti | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Diplodia fungus | 1 |
| Diplodia tumefaciens | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | corky bark disease | 1 |
| Discohainesia oenotherae | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Discohainesia fungus | 4 |
| Discula destructiva | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | dogwood anthracnose | 10 |
| Dolabra nepheliae | Ascomycota | Dothideomycetes | Incertae sedis | Incertae sedis | Dolabra fungus | 1 |
| Dothiora polyspora | Ascomycota | Dothideomycetes | Incertae sedis | Dothioraceae | Dothiora fungus | 1 |
| Dothiorella gleditschiae | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Dothiorella canker and wilt | 1 |
| Drechslera avenae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf blight | 14 |
| Drechslera dictyoides | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Pyrenophora leaf blight | 2 |
| Drechslera erythrospila | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf blight | 2 |
| Drechslera gigantea | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf blight | 2 |
| Drechslera poae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf blight | 20 |
| Drechslera setariae | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf spot | 1 |
| Echinodontium tinctorium | Basidiomycota | Agaricomycetes | Russulales | Echinodontiaceae | indian paint fungus | 3 |
| Elsinoe ampelina | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | grape anthracnose | 2 |
| Elsinoe batatas | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | sweet potato scab | 2 |
| Elsinoe corni | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | spot anthracnose | 8 |
| Elsinoe fawcettii | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | sour orange scab | 1 |
| Elsinoe quercus-falcatae | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | anthracnose | 1 |
| Elsinoe rosarum | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | anthracnose | 1 |
| Elsinoe veneta | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | anthracnose | 4 |
| Elytroderma deformans | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | Elytroderma needle cast of pine | 2 |
| Endocronartium harknessii | Basidiomycota | Urediniomycetes | Uredinales | Cronartiaceae | western gall rust | 8 |
| Endothia singularis | Ascomycota | Sordariomycetes | Diaporthales | Incertae sedis | Endothia fungus | 1 |
| Entoleuca mammata | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | Hypoxylon canker of aspen | 1 |
| Entyloma australe | Basidiomycota | Exobasidiomycetes | Entylomatales | Entylomataceae | smut | 2 |
| Entyloma compositarum | Basidiomycota | Exobasidiomycetes | Entylomatales | Entylomataceae | smut | 4 |
| Entyloma lineatum | Basidiomycota | Exobasidiomycetes | Entylomatales | Entylomataceae | smut | 1 |
| Entyloma polysporum | Basidiomycota | Exobasidiomycetes | Entylomatales | Entylomataceae | white smut | 3 |
| Epichloe typhina | Ascomycota | Sordariomycetes | Hypocreales | Clavicipitaceae | choke disease of grass | 10 |
| Epicoccum nigrum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Epicoccum fungus | 1 |
| Erysiphe adunca var. adunca | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 9 |
| Erysiphe betae | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 31 |
| Erysiphe cichoracearum | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | phlox powdery mildew | 39 |
| Erysiphe cruciferarum | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Erysiphe diffusa | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Erysiphe elevata | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 3 |
| Erysiphe euonymi-japonici | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 2 |
| Erysiphe flexuosa | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Erysiphe galeopsidis | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 9 |
| Erysiphe lonicerae | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Erysiphe necator | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 12 |
| Erysiphe pisi | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 2 |
| Erysiphe pulchra | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Erysiphe syringae | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 3 |
| Erythricium salmonicolor | Basidiomycota | Agaricomycetes | Polyporales | Phanerochaetaceae | pink disease | 1 |
| Eudarluca caricis | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | Eudarluca fungus | 2 |
| Eutypa lata | Ascomycota | Sordariomycetes | Xylariales | Diatrypaceae | Eutypa fungus | 1 |
| Eutypella parasitica | Ascomycota | Sordariomycetes | Xylariales | Diatrypaceae | Eutypella canker | 1 |
| Exobasidium camelliae | Basidiomycota | Exobasidiomycetes | Exobasidiales | Exobasidiaceae | camellia leaf gall | 5 |
| Exobasidium oxycocci | Basidiomycota | Exobasidiomycetes | Exobasidiales | Exobasidiaceae | Exobasidium fungus | 1 |
| Exobasidium rostrupii | Basidiomycota | Exobasidiomycetes | Exobasidiales | Exobasidiaceae | Exobasidium fungus | 2 |
| Exobasidium vaccinii | Basidiomycota | Exobasidiomycetes | Exobasidiales | Exobasidiaceae | leaf and flower gall | 24 |
| Exosporium sambuci | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Exosporium fungus | 1 |
| Exserohilum rostratum | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | Rostratum leaf spot | 2 |
| Exserohilum turcicum | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | northern corn leaf blight | 28 |
| Flammulina velutipes | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | velvet foot | 1 |
| Fomes fomentarius | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | tinder fungus | 17 |
| Fomitopsis cajanderi | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | Fomitopsis fungus | 8 |
| Fomitopsis pinicola | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | red-belted fungus | 15 |
| Fomitopsis rosea | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | bracket fungus | 6 |
| Fusarium avenaceum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium cortical stem rot | 21 |
| Fusarium circinatum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | pitch canker | 1 |
| Fusarium culmorum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium basal rot of garlic | 26 |
| Fusarium culmorum var. cereale | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium hostae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. apii | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. asparagi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 2 |
| Fusarium oxysporum f.sp. barbati | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. basilici | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 2 |
| Fusarium oxysporum f.sp. cepae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium damping-off | 1 |
| Fusarium oxysporum f.sp. chrysanthemi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. ciceris | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. conglutinans | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 18 |
| Fusarium oxysporum f.sp. cubense | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 3 |
| Fusarium oxysporum f.sp. cucurbitacearum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. cyclaminis | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. dianthi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. gladioli | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. koae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. lycopersici | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 3 |
| Fusarium oxysporum f.sp. medicaginis | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 4 |
| Fusarium oxysporum f.sp. niveum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. phaseoli | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. pisi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. radicis-lycopersici | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium oxysporum f.sp. vasinfectum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt of cotton | 2 |
| Fusarium oxysporum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 40 |
| Fusarium pallidoroseum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium poae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium proliferatum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium bulb rot of onion and garlic | 3 |
| Fusarium pseudograminearum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium semitectum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 4 |
| Fusarium solani f.sp. cucurbitae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium solani f.sp. phaseoli | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 1 |
| Fusarium solani | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium damping-off | 41 |
| Fusarium sporotrichioides | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Fusarium wilt | 7 |
| Fusarium subglutinans | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | pitch canker | 5 |
| Fusarium thapsinum | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | grain mold | 1 |
| Fusarium virguliforme | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | sudden death syndrome | 2 |
| Fusicoccum amygdali | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Fusicoccum canker | 1 |
| Fusicoccum putrefaciens | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Fusicoccum canker | 1 |
| Gaeumannomyces graminis | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | take-all root rot / sheath rot | 30 |
| Gaeumannomyces graminis var. avenae | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | take-all root rot | 4 |
| Gaeumannomyces graminis var. graminis | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | take-all root rot | 2 |
| Gaeumannomyces graminis var. tritici | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | take-all root rot | 1 |
| Ganoderma applanatum | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | artist's conk | 29 |
| Ganoderma australe | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | Ganoderma root and butt rot | 2 |
| Ganoderma gibbosum | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | root and butt rot | 1 |
| Ganoderma lucidum | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | Ganoderma root and butt rot | 30 |
| Ganoderma oregonense | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | Ganoderma root and butt rot | 2 |
| Ganoderma resinaceum | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | Ganoderma root and butt rot | 1 |
| Ganoderma tsugae | Basidiomycota | Agaricomycetes | Polyporales | Ganodermataceae | hemlock varnish shelf | 1 |
| Geotrichum candidum | Ascomycota | Saccharomycetes | Saccharomycetales | Incertae sedis | sour rot | 1 |
| Gibberella acuminata | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | wilt fungus | 15 |
| Gibberella baccata | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella canker | 1 |
| Gibberella fujikuroi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Bakanae Disease of Rice / cotton boll rot | 42 |
| Gibberella fujikuroi var. subglutinans | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella fungus | 1 |
| Gibberella intricans | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella canker | 5 |
| Gibberella pulicaris | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella canker | 4 |
| Gibberella tricincta | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella fungus | 1 |
| Gibberella zeae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Gibberella stalk rot | 43 |
| Gliocephalotrichum bulbilium | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | fruit rot | 1 |
| Gliocephalotrichum simplex | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | fruit rot | 1 |
| Gliocladium vermoesenii | Ascomycota | Sordariomycetes | Hypocreales | Hypocreaceae | wood decay | 1 |
| Gloeocercospora sorghi | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Leaf spot of sorghum | 4 |
| Gloeocoryneum cinereum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | needlecast | 1 |
| Gloeodes pomigena | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | sooty blotch | 1 |
| Gloeophyllum sepiarium | Basidiomycota | Agaricomycetes | Polyporales | Gloeophyllaceae | rusty gilled polypore | 7 |
| Gloeoporus dichrous | Basidiomycota | Agaricomycetes | Polyporales | Meruliaceae | Gloeoporus fungus | 7 |
| Gloeosporium minus | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | anthracnose | 1 |
| Gloeosporium musarum | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | anthracnose | 2 |
| Gloeosporium weirianum | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | anthracnose | 1 |
| Glomerella graminicola | Ascomycota | Sordariomycetes | Incertae sedis | Incertae sedis | anthracnose | 27 |
| Gnomonia comari | Ascomycota | Sordariomycetes | Diaporthales | Gnomoniaceae | anthracnose | 1 |
| Gnomonia intermedia | Ascomycota | Sordariomycetes | Diaporthales | Gnomoniaceae | anthracnose | 1 |
| Gnomonia leptostyla | Ascomycota | Sordariomycetes | Diaporthales | Gnomoniaceae | walnut anthracnose | 2 |
| Gnomoniella fraxini | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | ash anthracnose | 5 |
| Godronia cassandrae | Ascomycota | Leotiomycetes | Helotiales | Helotiaceae | Godronia fungus | 1 |
| Golovinomyces cichoracearum | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Graphiola phoenicis | Basidiomycota | Exobasidiomycetes | Exobasidiales | Graphiolaceae | Graphiola leaf spot | 1 |
| Grifola frondosa | Basidiomycota | Agaricomycetes | Polyporales | Meripilaceae | hen of the woods | 2 |
| Grovesiella abieticola | Ascomycota | Leotiomycetes | Helotiales | Helotiaceae | Scleroderris canker of western firs | 1 |
| Grovesinia pyramidalis | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | zonate leaf spot | 1 |
| Guignardia aesculi | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Guignardia blotch of buckeyes and horsechestnuts | 7 |
| Guignardia bidwellii | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | black rot | 11 |
| Guignardia musae | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Guignardia blotch | 1 |
| Guignardia philoprina | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Guignardia blotch | 1 |
| Guignardia vaccinii | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Guignardia blotch | 1 |
| Gymnosporangium bethelii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Gymnosporangium clavipes | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | quince rust | 35 |
| Gymnosporangium confusum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Gymnosporangium cornutum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | mountain ash juniper rust | 1 |
| Gymnosporangium effusum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 2 |
| Gymnosporangium globosum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | American hawthorn rust | 36 |
| Gymnosporangium inconspicuum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Gymnosporangium juniperi-virginianae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | cedar-apple rust | 38 |
| Gymnosporangium libocedri | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | incense cedar broom rust | 1 |
| Gymnosporangium nelsonii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | witches broom rust | 1 |
| Gymnosporangium nidus-avis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 6 |
| Harpophora graminicola | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Harpophora fungs | 8 |
| Helicobasidium brebissonii | Basidiomycota | Urediniomycetes | Incertae sedis | Platygloeaceae | violet root rot | 1 |
| Helminthosporium solani | Ascomycota | Dothideomycetes | Pleosporales | Pleomassariaceae | silver scurf of potato | 5 |
| Hemiphacidium planum | Ascomycota | Leotiomycetes | Helotiales | Hemiphacidiaceae | Hemiphacidium fungus | 1 |
| Hericium americanum | Basidiomycota | Agaricomycetes | Russulales | Hericiaceae | Hericium fungus | 1 |
| Hericium coralloides | Basidiomycota | Agaricomycetes | Russulales | Hericiaceae | Hericium fungus | 1 |
| Herpotrichia juniperi | Ascomycota | Dothideomycetes | Pleosporales | Lophiostomataceae | brown felt blight | 3 |
| Heterobasidion annosum | Basidiomycota | Agaricomycetes | Russulales | Bondarzewiaceae | annosum root disease | 31 |
| Hypodermella laricis | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | larch needle cast | 1 |
| Inonotus circinatus | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | red root and butt rot | 1 |
| Inonotus dryadeus | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | weeping conk | 17 |
| Inonotus obliquus | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | clinker polypore | 1 |
| Inonotus rheades | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | Inonotus canker | 1 |
| Insolibasidium deformans | Basidiomycota | Urediniomycetes | Incertae sedis | Platygloeaceae | Insolibasidium fungus | 1 |
| Irpex lacteus | Basidiomycota | Agaricomycetes | Polyporales | Steccherinaceae | milk-white toothed polypore | 15 |
| Isthmiella abietis | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | fir needle cast | 1 |
| Itersonilia perplexans | Basidiomycota | Tremellomycetes | Cystofilobasidiales | Incertae sedis | Itersonilia fungus | 1 |
| Kabatiella apocrypta | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | hardwood anthracnose | 2 |
| Kabatiella zeae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | eye spot | 6 |
| Kabatina juniperi | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Kabatina blight | 14 |
| Khuskia oryzae | Ascomycota | Sordariomycetes | Trichosphaeriales | Incertae sedis | Khuskia fungus | 1 |
| Kretzschmaria clavus | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | root and butt rot | 1 |
| Kweilingia divina | Basidiomycota | Urediniomycetes | Uredinales | Phakopsoraceae | rust | 1 |
| Labyrinthula terrestris | Labyrinthulomycota | Labyrinthulomycetes | Labyrinthulales | Labyrinthulaceae | Labyrinthula water mold | 2 |
| Laetiporus huroniensis | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | chicken of the woods | 1 |
| Laetiporus persicinus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Laetiporus fungus | 1 |
| Laetiporus sulphureus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | sulfur shelf | 27 |
| Laetisaria arvalis | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | Laetisaria fungus | 1 |
| Laetisaria fuciformis | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | red thread | 7 |
| Laricifomes officinalis | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | heart rot | 1 |
| Lasiodiplodia theobromae | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Java black rot | 5 |
| Laxitextum bicolor | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | fungus | 11 |
| Lentinus strigosus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Lentinus mushroom | 1 |
| Lepista nuda | Basidiomycota | Agaricomycetes | Agaricales | Agaricaceae | blewit | 1 |
| Lepteutypa cupressi | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | twig canker | 5 |
| Leptographium procerum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Leptographium root disease | 1 |
| Leptosphaeria coniothyrium | Ascomycota | Dothideomycetes | Pleosporales | Leptosphaeriaceae | stem canker | 5 |
| Leptosphaeria maculans | Ascomycota | Dothideomycetes | Pleosporales | Leptosphaeriaceae | stem canker | 7 |
| Leptosphaeria pratensis | Ascomycota | Dothideomycetes | Pleosporales | Leptosphaeriaceae | Leptosphaeria fungus | 1 |
| Leptosphaerulina argentinensis | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Leptosphaerulina leaf blight | 1 |
| Leptosphaerulina crassiasca | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Leptosphaerulina leaf blight | 1 |
| Leptosphaerulina trifolii | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Leptosphaerulina leaf blight | 24 |
| Leptothyrium pseudotsugae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Leptothyrium fungus | 1 |
| Leptotrochila medicaginis | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Leptotrochila fungus | 1 |
| Leucostoma kunzei | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Leucostoma canker of spruce | 5 |
| Leucostoma persoonii | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Leucostoma fungus | 1 |
| Leveillula taurica | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 4 |
| Limonomyces roseipellis | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | Limonomyces fungus | 3 |
| Linospora tetraspora | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Linospora fungus | 2 |
| Lirula abietis-concoloris | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | fir needle cast | 1 |
| Lirula macrospora | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | spruce needle cast/blight | 2 |
| Lirula mirabilis | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needlecast | 1 |
| Lophodermella concolor | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | lodgepole pine needle cast | 3 |
| Lophodermella montivaga | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needlecast | 1 |
| Lophodermella morbida | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needlecast | 3 |
| Lophodermium decorum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Lophodermium juniperinum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Lophodermium oxycocci | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 2 |
| Lophodermium piceae | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | spruce needle cast | 1 |
| Lophodermium pinastri | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | pine needle cast | 24 |
| Lophodermium seditiosum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 4 |
| Lophodermium versicolor | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Lophomerum autumnale | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Macalpinomyces neglectus | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Macrophomina phaseolina | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | charcoal rot | 31 |
| Magnaporthe grisea | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | gray leaf spot | 21 |
| Magnaporthe poae | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | summer patch | 13 |
| Marasmius inoderma | Basidiomycota | Agaricomycetes | Agaricales | Marasmiaceae | basal stem rot | 2 |
| Marssonina populi | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Marssonina blight of poplar | 10 |
| Marssonina tremulae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Marssonina leaf spot | 2 |
| Melampsora abietis-canadensis | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 4 |
| Melampsora abietis-capraearum | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 5 |
| Melampsora arctica | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 1 |
| Melampsora epitea | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 1 |
| Melampsora farlowii | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | hemlock rust | 1 |
| Melampsora medusae f.sp. tremuloidis | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 1 |
| Melampsora medusae | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | poplar rust | 18 |
| Melampsora occidentalis | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 3 |
| Melampsora paradoxa | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | Melampsora rust | 3 |
| Melampsora populnea | Basidiomycota | Urediniomycetes | Uredinales | Melampsoraceae | twist rust | 1 |
| Melampsorella caryophyllacearum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | fir broom rust | 5 |
| Melanconis betulina | Ascomycota | Sordariomycetes | Diaporthales | Melanconidaceae | Melanconis fungus | 1 |
| Melanconis juglandis | Ascomycota | Sordariomycetes | Diaporthales | Melanconidaceae | Melanconis fungus | 1 |
| Meria laricis | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | needle blight of larch | 4 |
| Metarhizium anisopliae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | green muscardine of insects | 2 |
| Microdochium nivale | Ascomycota | Sordariomycetes | Xylariales | Incertae sedis | pink snow mold | 12 |
| Microsphaera diffusa | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 19 |
| Microsphaera penicillata | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 25 |
| Microsphaera vaccinii | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 18 |
| Monilinia fructicola | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | brown rot | 42 |
| Monilinia laxa | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | brown rot blossom blight and spur infection | 1 |
| Monilinia oxycocci | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | cottonball | 1 |
| Monilinia vaccinii-corymbosi | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | mummy berry | 6 |
| Monilochaetes infuscans | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | scurf | 2 |
| Monochaetia monochaeta | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Monochaetia fungi | 10 |
| Morchella esculenta | Ascomycota | Pezizomycetes | Pezizales | Morchellaceae | yellow morel | 3 |
| Morchella vulgaris | Ascomycota | Pezizomycetes | Pezizales | Morchellaceae | morel | 3 |
| Mucor hiemalis | Zygomycota | Zygomycetes | Mucorales | Mucoraceae | Mucor fungus | 1 |
| Mycoleptodiscus terrestris | Ascomycota | Sordariomycetes | Incertae sedis | Magnaporthaceae | Mycoleptodiscus fungus | 1 |
| Mycosphaerella alocasiae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 1 |
| Mycosphaerella cerasella | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella leaf spot | 2 |
| Mycosphaerella citri | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella leaf spot | 1 |
| Mycosphaerella coffeicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Cercospora berry blotch | 1 |
| Mycosphaerella cruenta | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 1 |
| Mycosphaerella dearnessii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | brown spot needle blight of pine | 7 |
| Mycosphaerella diospyri | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 1 |
| Mycosphaerella effigurata | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 1 |
| Mycosphaerella fijiensis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | black Sigatoka disease | 5 |
| Mycosphaerella fragariae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | strawberry leaf spot | 7 |
| Mycosphaerella fraxinicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | ash leaf spot | 1 |
| Mycosphaerella gossypina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella leaf spot | 2 |
| Mycosphaerella henningsii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 1 |
| Mycosphaerella musae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | speckle | 1 |
| Mycosphaerella musicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 2 |
| Mycosphaerella pini | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Dothistroma needle blight | 13 |
| Mycosphaerella pinodes | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 1 |
| Mycosphaerella pomi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 1 |
| Mycosphaerella populicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 5 |
| Mycosphaerella ribis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot of blackberry | 1 |
| Mycosphaerella zeae-maydis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Mycosphaerella fungus | 6 |
| Mycovellosiella fulva | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | tomato leaf mold | 6 |
| Myrothecium roridum | Ascomycota | Sordariomycetes | Hypocreales | Incertae sedis | Myrothecium leaf spot | 6 |
| Nattrassia mangiferae | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Nattrassia fungus | 1 |
| Nectria cinnabarina | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Nectria canker | 30 |
| Nectria galligena | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Nectria canker | 23 |
| Neofabraea malicorticis | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Neofabraea fungus | 1 |
| Neonectria ditissima | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Beech Bark Disease | 2 |
| Neonectria faginata | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Neonectria canker | 3 |
| Neonectria galligena | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Neonectria canker | 20 |
| Neonectria radicicola | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Neonectria fungus | 1 |
| Neopeckia coulteri | Ascomycota | Dothideomycetes | Incertae sedis | Incertae sedis | brown felt blight of pines | 1 |
| Neotyphodium typhinum | Ascomycota | Sordariomycetes | Hypocreales | Clavicipitaceae | fungal endophyte | 10 |
| Oidium mangiferae | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Olpidium brassicae | Chytridiomycota | Chytridiomycetes | Incertae sedis | Olpidiaceae | Olpidium fungus | 1 |
| Ophiosphaerella herpotricha | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | Ophiosphaerella fungus | 3 |
| Ophiosphaerella korrae | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | spring dead spot | 11 |
| Ophiostoma ips | Ascomycota | Sordariomycetes | Ophiostomatales | Ophiostomataceae | blue stain | 6 |
| Ophiostoma novo-ulmi | Ascomycota | Sordariomycetes | Ophiostomatales | Ophiostomataceae | Dutch elm disease | 2 |
| Ophiostoma ulmi | Ascomycota | Sordariomycetes | Ophiostomatales | Ophiostomataceae | Dutch elm disease | 34 |
| Ophiostoma wageneri | Ascomycota | Sordariomycetes | Ophiostomatales | Ophiostomataceae | black stain root disease | 3 |
| Ovulinia azaleae | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Ovulinia fungus | 1 |
| Oxyporus populinus | Basidiomycota | Agaricomycetes | Hymenochaetales | Schizoporaceae | mossy maple polypore | 1 |
| Paecilomyces farinosus | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Paecilomyces fungus | 1 |
| Paecilomyces fumosoroseus | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Paecilomyces fungus | 1 |
| Passalora arachidicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Passalora fungus | 1 |
| Passalora bataticola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Passalora fungus | 1 |
| Passalora fulva | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf mold | 1 |
| Passalora koepkei | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | brown spot | 1 |
| Passalora personata | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | late leaf spot | 4 |
| Passalora sequoiae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 5 |
| Penicillium digitatum | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | green mold | 1 |
| Penicillium expansum | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | blue mold | 29 |
| Penicillium italicum | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | blue mold | 1 |
| Penicillium oxalicum | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | blue mold | 5 |
| Penicillium purpurogenum | Ascomycota | Eurotiomycetes | Eurotiales | Trichocomaceae | Penicillium fungus | 1 |
| Peniophora polygonia | Basidiomycota | Agaricomycetes | Russulales | Peniophoraceae | Peniophora decay | 1 |
| Perenniporia subacida | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Perenniporia decay | 10 |
| Peridermium bethelii | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | Bethuli rust | 1 |
| Peridermium ephedrae | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | rust | 1 |
| Peridermium filamentosum | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | limb rust | 1 |
| Peridermium montanum | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | rust | 1 |
| Peronosclerospora sorghi | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 2 |
| Peronospora antirrhini | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Peronospora destructor | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 2 |
| Peronospora farinosa | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 2 |
| Peronospora grisea | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Peronospora hariotii | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Peronospora lamii | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Peronospora manshurica | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 12 |
| Peronospora parasitica | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 27 |
| Peronospora potentillae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew of potentilla | 2 |
| Peronospora sparsa | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew of rose | 5 |
| Peronospora tabacina | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | blue mold | 9 |
| Peronospora trifoliorum | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 23 |
| Peronospora violae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Pestalotia vaccinii | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Pestalotia fungus | 1 |
| Pestalotiopsis funerea | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Pestalotiopsis blight | 2 |
| Pestalotiopsis mangiferae | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Pestalotiopsis blight | 3 |
| Pestalotiopsis palmarum | Ascomycota | Sordariomycetes | Xylariales | Amphisphaeriaceae | Pestalotiopsis leaf spot | 3 |
| Phacidium balsameae | Ascomycota | Leotiomycetes | Helotiales | Phacidiaceae | Phacidium fungus | 1 |
| Phaeocryptopus gaeumannii | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | Swiss needle cast | 5 |
| Phaeocryptopus nudus | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | needle cast | 1 |
| Phaeoisariopsis griseola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | bean angular leaf spot | 5 |
| Phaeolus alboluteus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | wood decay | 1 |
| Phaeolus schweinitzii | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Schweinitzii root and butt disease | 7 |
| Phaeomoniella chlamydospora | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Phaeomoniella fungus | 1 |
| Phaeoramularia maculicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Phaeoramularia fungus | 1 |
| Phaeosphaeria avenaria f.sp. avenaria | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | Phaeosphaeria fungus | 1 |
| Phaeosphaeria avenaria | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | Phaeosphaeria fungus | 1 |
| Phakopsora pachyrhizi | Basidiomycota | Urediniomycetes | Uredinales | Phakopsoraceae | soybean rust | 3 |
| Phellinus chrysoloma | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | Phellinus fungus | 1 |
| Phellinus everhartii | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | canker rot | 12 |
| Phellinus gilvus | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | Phellinus fungus | 3 |
| Phellinus igniarius | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | false tinder polypore | 16 |
| Phellinus lamaënsis | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | brown root and collar rot | 1 |
| Phellinus noxius | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | brown root rot | 2 |
| Phellinus pini | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | red heart of pine | 19 |
| Phellinus robiniae | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | Rimosus decay | 5 |
| Phellinus tremulae | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | white heartwood rot | 5 |
| Phellinus viticola | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | Phellinus fungus | 4 |
| Phellinus weirii | Basidiomycota | Agaricomycetes | Hymenochaetales | Hymenochaetaceae | laminated root disease | 1 |
| Phialophora cinerescens | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Phialophora wilt | 1 |
| Phialophora gregata | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Brown stem rot | 6 |
| Phloeospora aceris | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Phloeospora leaf spot | 2 |
| Phloeosporella padi | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | Phloeosporella fungus | 1 |
| Phlyctema tiliae | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | fungus | 1 |
| Phlyctema vagabunda | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | coin canker | 1 |
| Pholiota squarrosa | Basidiomycota | Agaricomycetes | Agaricales | Strophariaceae | scaly pholiota | 1 |
| Phoma betae | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 2 |
| Phoma cucurbitacearum | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 6 |
| Phoma destructiva | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma exigua | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 11 |
| Phoma exigua var. exigua | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma gossypii | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma gossypiicola | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma macdonaldii | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 2 |
| Phoma macrostoma var. incolorata | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma medicaginis | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 21 |
| Phoma putaminum | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma sclerotioides | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 2 |
| Phoma sorghina | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | Phoma blight | 1 |
| Phoma terrestris | Ascomycota | Dothideomycetes | Pleosporales | Incertae sedis | pink root of onion | 31 |
| Phomopsis arnoldiae | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis leaf blight and fruit rot | 1 |
| Phomopsis juniperivora | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis blight | 2 |
| Phomopsis longicolla | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis leaf blight and fruit rot | 2 |
| Phomopsis oblonga | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis leaf blight and fruit rot | 4 |
| Phomopsis obscurans | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis leaf blight and fruit rot | 4 |
| Phomopsis vaccinii | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis canker and dieback | 3 |
| Phomopsis vexans | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | fruit rot | 3 |
| Phomopsis viticola | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Phomopsis cane and leaf spot | 9 |
| Phragmidium ellisii | Basidiomycota | Urediniomycetes | Uredinales | Phragmidiaceae | rust | 1 |
| Phragmidium ivesiae | Basidiomycota | Urediniomycetes | Uredinales | Phragmidiaceae | rust | 1 |
| Phragmidium mucronatum | Basidiomycota | Urediniomycetes | Uredinales | Phragmidiaceae | rose rust | 2 |
| Phragmidium rubi-idaei | Basidiomycota | Urediniomycetes | Uredinales | Phragmidiaceae | rust | 1 |
| Phyllachora afzeliae | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | tar spot | 1 |
| Phyllachora graminis | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 5 |
| Phyllachora luteomaculata | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 2 |
| Phyllachora musicola | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | black cross leaf spot | 1 |
| Phyllachora puncta | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 1 |
| Phyllachora vulgata | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | anthracnose | 2 |
| Phyllactinia guttata | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 24 |
| Phyllactinia spp. | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Phyllosticta acericola | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta brunnea | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta capitalensis | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | blossom rot | 1 |
| Phyllosticta catalpae | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta circumscissa | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta colocasiophila | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta elongata | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 2 |
| Phyllosticta geranii | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta gossypina | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta guttulatae | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta minima | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | eye spot | 2 |
| Phyllosticta minutissima | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phyllosticta sojaecola | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 4 |
| Phyllosticta solitaria | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Apple blotch | 1 |
| Phyllosticta vaccinii | Ascomycota | Dothideomycetes | Incertae sedis | Botryosphaeriaceae | Phyllosticta leaf spot | 1 |
| Phymatotrichopsis omnivora | Basidiomycota | Agaricomycetes | Incertae sedis | Incertae sedis | Phymatotrichum root rot | 3 |
| Physalospora miyabeana | Ascomycota | Sordariomycetes | Xylariales | Hyponectriaceae | black canker | 1 |
| Physalospora vaccinii | Ascomycota | Sordariomycetes | Xylariales | Hyponectriaceae | black rot | 1 |
| Physoderma maydis | Chytridiomycota | Chytridiomycetes | Chytridiales | Physodermataceae | brown spot of corn | 20 |
| Phytophthora cactorum | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 37 |
| Phytophthora cambivora | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and crown rot | 1 |
| Phytophthora capsici | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora blight | 17 |
| Phytophthora cinnamomi | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 29 |
| Phytophthora citricola | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 12 |
| Phytophthora citrophthora | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 8 |
| Phytophthora colocasiae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | leaf blight of taro | 5 |
| Phytophthora cryptogea | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 6 |
| Phytophthora drechsleri | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 2 |
| Phytophthora erythroseptica | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 7 |
| Phytophthora europaea | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 1 |
| Phytophthora fragariae fragariae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Red stele root rot of strawberry | 1 |
| Phytophthora fragariae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | red core | 5 |
| Phytophthora gonapodyides | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 2 |
| Phytophthora infestans | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | late blight | 20 |
| Phytophthora katsurae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 1 |
| Phytophthora lateralis | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root disease of Port Orford cedar | 2 |
| Phytophthora medicaginis | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 7 |
| Phytophthora megasperma | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root and stem rot | 13 |
| Phytophthora nicotianae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora blight | 22 |
| Phytophthora nicotianae var. nicotianae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 1 |
| Phytophthora palmivora | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora basal canker | 6 |
| Phytophthora phaseoli | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Phytophthora quercetorum | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 1 |
| Phytophthora sojae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Root and stem rot | 12 |
| Phytophthora syringae | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | Phytophthora root rot | 3 |
| Piptoporus betulinus | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | birch conk | 1 |
| Placosphaeria haydenii | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | leaf spot | 1 |
| Plasmodiophora brassicae | Plasmodiophoromycota | Plasmodiophoromycetes | Plasmodiophorales | Plasmodiophoraceae | club root of crucifers | 7 |
| Plasmopara halstedii | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 6 |
| Plasmopara viburni | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 1 |
| Plasmopara viticola | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 10 |
| Plectosporium tabacinum | Ascomycota | Sordariomycetes | Phyllachorales | Phyllachoraceae | Plectosporium blight | 3 |
| Pleospora eturmiuna | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | fungus | 1 |
| Pleospora herbarum | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | fungus | 10 |
| Pleospora tarda | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | fungus | 20 |
| Pleurotus elongatipes | Basidiomycota | Agaricomycetes | Agaricales | Pleurotaceae | Pleurotus fungus | 1 |
| Pleurotus ostreatus | Basidiomycota | Agaricomycetes | Agaricales | Pleurotaceae | oyster mushroom | 2 |
| Pleurotus ulmarius | Basidiomycota | Agaricomycetes | Agaricales | Pleurotaceae | Pleurotus fungus | 1 |
| Ploioderma lethale | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | Ploioderma needle cast of pine | 2 |
| Podosphaera aphanis | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Podosphaera clandestina | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 20 |
| Podosphaera leucotricha | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 6 |
| Podosphaera macularis | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 16 |
| Podosphaera pannosa | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 12 |
| Podosphaera xanthii | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 2 |
| Polyporus arcularius | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | polypore fungus | 1 |
| Polyporus circinatus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | polypore fungus | 1 |
| Polyporus osseus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | polypore fungus | 1 |
| Polyporus spumeus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | polypore fungus | 1 |
| Polyporus squamosus | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Dryad's Saddle | 1 |
| Postia placenta | Basidiomycota | Agaricomycetes | Polyporales | Fomitopsidaceae | brown rot | 1 |
| Prospodium appendiculatum | Basidiomycota | Urediniomycetes | Uredinales | Uropyxidaceae | rust | 1 |
| Protoventuria myrtilli | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | leaf blight | 1 |
| Pseudocercospora abelmoschi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf mold | 1 |
| Pseudocercospora rhapisicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Pseudocercospora leaf spot | 1 |
| Pseudocercospora ubi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Pseudocercospora fungus | 1 |
| Pseudocercospora vitis | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Pseudocercospora leaf spot | 1 |
| Pseudocercosporella capsellae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | white spot | 1 |
| Pseudocercosporella herpotrichoides | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | foot rot | 1 |
| Pseudoepicoccum cocos | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | root rot | 2 |
| Pseudoperonospora cubensis | Oomycota | Oomycetes | Peronosporales | Peronosporaceae | downy mildew | 25 |
| Pseudopeziza medicaginis | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | alfalfa leaf spot | 28 |
| Pseudopeziza trifolii | Ascomycota | Leotiomycetes | Helotiales | Dermateaceae | clover leaf spot | 22 |
| Pseudoseptoria stomaticola | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | leaf spot | 3 |
| Puccinia allii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | onion rust | 1 |
| Puccinia andropogonis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 4 |
| Puccinia angustata | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 4 |
| Puccinia antirrhini | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Puccinia aristidae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 2 |
| Puccinia asparagi | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 10 |
| Puccinia baccharidis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia calcitrapae var. centaureae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | safflower rust | 3 |
| Puccinia canaliculata | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia caricina | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 5 |
| Puccinia cnici-oleracei | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 6 |
| Puccinia coronata | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | crown rust | 28 |
| Puccinia cryptandri | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia cynodontis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 2 |
| Puccinia dioicae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 5 |
| Puccinia graminis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | wheat stem rust | 39 |
| Puccinia helianthi | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia hemerocallidis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | daylily rust | 5 |
| Puccinia heucherae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Puccinia hieracii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 5 |
| Puccinia hordei | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 12 |
| Puccinia iridis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia lantanae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia malvacearum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 6 |
| Puccinia menthae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | mint rust | 15 |
| Puccinia montanensis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 4 |
| Puccinia nakanishikii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | lemongrass rust | 1 |
| Puccinia paspalicola | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia pelargonii-zonalis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 2 |
| Puccinia peridermiospora | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia podophylli | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | Mayapple rust | 2 |
| Puccinia polygoni-amphibii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 7 |
| Puccinia polysora | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | Southern corn rust | 12 |
| Puccinia psidii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | guava rust | 1 |
| Puccinia punctiformis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia purpurea | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 2 |
| Puccinia recondita | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | wheat leaf rust | 32 |
| Puccinia schedonnardii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Puccinia sessilis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Puccinia silphii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia sorghi | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | common corn rust | 20 |
| Puccinia sparganioides | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | ash rusts | 9 |
| Puccinia striiformis f. tritici | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | stripe rust | 1 |
| Puccinia striiformis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | stripe rust | 15 |
| Puccinia subnitens | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia tanaceti | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | brown rust | 1 |
| Puccinia thaliae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia vincae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Puccinia violae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 5 |
| Puccinia vulgaris | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Pucciniastrum agrimoniae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | rust | 4 |
| Pucciniastrum americanum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | rust | 4 |
| Pucciniastrum epilobii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | fir-fireweed rust | 8 |
| Pucciniastrum goeppertianum | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | needle rust | 2 |
| Pucciniastrum vaccinii | Basidiomycota | Urediniomycetes | Uredinales | Pucciniastraceae | hemlock needle rust | 11 |
| Pyrenophora graminea | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | barley leaf stripe | 16 |
| Pyrenophora teres | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | leaf blight | 17 |
| Pyrenophora tritici-repentis | Ascomycota | Dothideomycetes | Pleosporales | Pleosporaceae | tan spot | 24 |
| Pyrofomes demidoffii | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | heart rot | 1 |
| Pythium aphanidermatum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 39 |
| Pythium arrhenomanes | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 17 |
| Pythium cryptoirregulare | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium debaryanum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 26 |
| Pythium dissotocum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 2 |
| Pythium echinulatum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium graminicola | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 22 |
| Pythium helicoides | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 3 |
| Pythium irregulare | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 30 |
| Pythium myriotylum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | pod rot | 11 |
| Pythium oligandrum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 2 |
| Pythium paroecandrum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium spinosum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium splendens | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 5 |
| Pythium sylvaticum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium torulosum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 4 |
| Pythium ultimum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 40 |
| Pythium ultimum var. sporangiiferum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium ultimum var. ultimum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 1 |
| Pythium vanterpoolii | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 2 |
| Pythium vexans | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 2 |
| Pythium volutum | Oomycota | Oomycetes | Peronosporales | Pythiaceae | Pythium root and stem rot | 2 |
| Radulodon americanus | Basidiomycota | Agaricomycetes | Polyporales | Cyphellaceae | fungus | 1 |
| Ramularia pusilla | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 1 |
| Ramularia rosea | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | leaf spot | 1 |
| Ramulispora sorghi | Ascomycota | Leotiomycetes | Helotiales | Hyaloscyphaceae | fungus | 1 |
| Rhabdocline pseudotsugae | Ascomycota | Leotiomycetes | Helotiales | Hemiphacidiaceae | Douglas-fir needlecast | 8 |
| Rhizoctonia fragariae | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | leaf spot | 1 |
| Rhizoctonia oryzae | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | sheath spot of rice | 2 |
| Rhizoctonia solani | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | Rhizoctonia damping-off, blight and rot | 47 |
| Rhizoctonia zeae | Basidiomycota | Agaricomycetes | Agaricales | Corticiaceae | sheath spot of rice | 4 |
| Rhizopus arrhizus | Zygomycota | Zygomycetes | Mucorales | Mucoraceae | Rhizopus rot | 1 |
| Rhizopus artocarpi | Zygomycota | Zygomycetes | Mucorales | Mucoraceae | Rhizopus rot | 1 |
| Rhizopus stolonifer | Zygomycota | Zygomycetes | Mucorales | Mucoraceae | bread mold | 12 |
| Rhizosphaera kalkhoffii | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Rhizosphaera needle cast | 18 |
| Rhizosphaera pini | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Rhizosphaera needle cast | 1 |
| Rhynchosporium secalis | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | barley scald | 13 |
| Rhytidiella baranyayi | Ascomycota | Dothideomycetes | Incertae sedis | Cucurbitariaceae | fungus | 1 |
| Rhytisma acerinum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | tar spot of maple | 5 |
| Rhytisma americanum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | tar spot | 1 |
| Rhytisma punctatum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | tar spot | 7 |
| Rhytisma salicinum | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | tar spot | 1 |
| Rhytisma vitis | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | tar spot | 2 |
| Rigidoporus microporus | Basidiomycota | Agaricomycetes | Polyporales | Meripilaceae | white root rot | 1 |
| Schizophyllum commune | Basidiomycota | Agaricomycetes | Agaricales | Schizophyllaceae | wood decay | 23 |
| Schizopora paradoxa | Basidiomycota | Agaricomycetes | Hymenochaetales | Schizoporaceae | polypore | 3 |
| Schizothyrium pomi | Ascomycota | Dothideomycetes | Incertae sedis | Schizothyriaceae | flyspeck | 4 |
| Sclerophoma pityophila | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | fungus | 1 |
| Sclerophthora macrospora | Oomycota | Oomycetes | Sclerosporales | Verrucalvaceae | downy mildew | 16 |
| Sclerotinia borealis | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Sclerotinia snow mold | 1 |
| Sclerotinia homoeocarpa | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | dollar spot | 12 |
| Sclerotinia minor | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Sclerotinia stem rot | 7 |
| Sclerotinia sclerotiorum | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Sclerotinia rot | 44 |
| Sclerotinia trifoliorum | Ascomycota | Leotiomycetes | Helotiales | Sclerotiniaceae | Sclerotinia stem rot | 26 |
| Sclerotium delphinii | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | fungus | 1 |
| Sclerotium hydrophilum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | stem rot | 1 |
| Sclerotium oryzae | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | stem rot of rice | 2 |
| Sclerotium rolfsii | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | southern blight | 39 |
| Scytinostroma galactinum | Basidiomycota | Agaricomycetes | Russulales | Lachnocladiaceae | ash root rot | 3 |
| Septoria ampelina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 1 |
| Septoria apiicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 2 |
| Septoria bromi | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 1 |
| Septoria cornicola | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 2 |
| Septoria glycines | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 17 |
| Septoria gossypina | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 1 |
| Septoria lycopersici | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 19 |
| Septoria musiva | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot and canker | 1 |
| Septoria passerinii | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 1 |
| Septoria tritici | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot of wheat | 29 |
| Septoria vincae | Ascomycota | Dothideomycetes | Incertae sedis | Mycosphaerellaceae | Septoria leaf spot | 1 |
| Setomelanomma holmii | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | leaf spot | 1 |
| Sirococcus clavigignenti-juglandacearum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | butternut canker | 2 |
| Sirococcus conigenus | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Sirococcus blight of conifers | 4 |
| Sistotrema brinkmannii | Basidiomycota | Agaricomycetes | Polyporales | Sistotremataceae | fungus | 1 |
| Sistotrema raduloides | Basidiomycota | Agaricomycetes | Polyporales | Sistotremataceae | fungus | 1 |
| Sphaceloma fawcettii var. scabiosae | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | citrus scab | 1 |
| Sphaceloma perseae | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | avocado scab | 1 |
| Sphaceloma poinsettiae | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | scab of poinsettia | 1 |
| Sphaceloma symphoricarpi | Ascomycota | Dothideomycetes | Myriangiales | Elsinoaceae | Sphaceloma fungus | 1 |
| Sphacelotheca hydropiperis | Basidiomycota | Urediniomycetes | Microbotryales | Microbotryaceae | smut | 2 |
| Sphacelotheca reiliana | Basidiomycota | Urediniomycetes | Microbotryales | Microbotryaceae | head smut | 5 |
| Sphaerobolus stellatus | Basidiomycota | Agaricomycetes | Phallales | Geastraceae | sphere thrower | 1 |
| Sphaeropsis parca | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Sphaeropsis fungus | 1 |
| Sphaeropsis sapinea | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Diplodia blight | 30 |
| Sphaeropsis tumefaciens | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Sphaeropsis tip blight | 1 |
| Sphaerotheca fuliginea | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 25 |
| Sphaerotheca mors-uvae | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Sphaerotheca phytoptophila | Ascomycota | Leotiomycetes | Erysiphales | Erysiphaceae | powdery mildew | 1 |
| Spongospora subterranea | Plasmodiophoromycota | Plasmodiophoromycetes | Plasmodiophorales | Plasmodiophoraceae | protozoa | 1 |
| Sporisorium caledonicum | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Sporisorium cenchri | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 3 |
| Sporisorium sorghi | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 5 |
| Stachybotrys chartarum | Ascomycota | Sordariomycetes | Chaetosphaeriales | Chaetosphaeriaceae | Stachybotrys fungus | 1 |
| Stagonospora meliloti | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | leaf blotch | 2 |
| Stagonospora mori | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | leaf blotch | 1 |
| Stagonospora nodorum | Ascomycota | Dothideomycetes | Pleosporales | Phaeosphaeriaceae | leaf blotch | 25 |
| Stegophora ulmea | Ascomycota | Sordariomycetes | Diaporthales | Gnomoniaceae | black spot of elm | 3 |
| Stemphylium botryosum | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Stemphylium leaf spot | 25 |
| Stemphylium loti | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Leaf spot of birdsfoot trefoil | 1 |
| Stemphylium solani | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | gray leaf spot | 1 |
| Stemphylium vesicarium | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Stemphylium leaf blight and stalk rot | 3 |
| Stenocarpella maydis | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | white ear rot and seedling blight of maize | 19 |
| Stereum gausapatum | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | false turkey tail | 5 |
| Stereum hirsutum | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | hairy stereum | 12 |
| Stereum ostrea | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | false turkey tail | 11 |
| Stereum sanguinolentum | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | red heart decay | 9 |
| Stereum sulcatum | Basidiomycota | Agaricomycetes | Russulales | Stereaceae | wood decay | 1 |
| Stigmina lautii | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | Stigmina leaf spot | 2 |
| Stigmina palmivora | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | Stigmina leaf spot | 1 |
| Taphrina americana | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | leaf curl | 1 |
| Taphrina caerulescens | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | oak leaf blister | 36 |
| Taphrina communis | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | leaf curl | 29 |
| Taphrina confusa | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | leaf curl | 1 |
| Taphrina deformans | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | peach leaf curl | 19 |
| Taphrina populi-salicis | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | Taphrina flower fungus | 1 |
| Taphrina populina | Ascomycota | Taphrinomycetes | Taphrinales | Taphrinaceae | leaf blister of poplar | 2 |
| Thielavia basicola | Ascomycota | Sordariomycetes | Sordariales | Chaetomiaceae | rust | 1 |
| Thielaviopsis basicola | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | black root rot | 38 |
| Thyronectria austroamericana | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Thyronectria canker | 2 |
| Thyronectria balsamea | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | Thyronectria canker | 1 |
| Tilletia asperifolia | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | smut | 1 |
| Tilletia asperifolioides | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | smut | 1 |
| Tilletia barclayana | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | kernel smut | 1 |
| Tilletia caries | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | wheat smut | 22 |
| Tilletia controversa | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | dwarf bunt, dwarf smut | 2 |
| Tilletia laevis | Basidiomycota | Exobasidiomycetes | Tilletiales | Tilletiaceae | common bunt | 14 |
| Trametes hirsuta | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Trametes wood decay | 15 |
| Trametes tenuis | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Trametes fungus | 1 |
| Trametes versicolor | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | turkey tail | 28 |
| Tranzschelia discolor | Basidiomycota | Urediniomycetes | Uredinales | Uropyxidaceae | rust | 1 |
| Tranzschelia pruni-spinosae | Basidiomycota | Urediniomycetes | Uredinales | Uropyxidaceae | rust | 9 |
| Trichaptum biforme | Basidiomycota | Agaricomycetes | Polyporales | Polyporaceae | Violet-toothed Polypore | 4 |
| Trichoderma harzianum | Ascomycota | Sordariomycetes | Hypocreales | Hypocreaceae | fungi | 7 |
| Trichoderma viride | Ascomycota | Sordariomycetes | Hypocreales | Hypocreaceae | green mold | 3 |
| Tubakia dryina | Ascomycota | Sordariomycetes | Diaporthales | Melanconidaceae | fungus | 2 |
| Tubercularia ulmea | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | canker and die back of Siberian Elm | 1 |
| Typhula incarnata | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | snow mold | 4 |
| Typhula ishikariensis | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | speckled snow mold | 1 |
| Typhula ishikariensis var. canadensis | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | snow mold | 1 |
| Typhula ishikariensis var. ishikariensis | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | snow mold | 1 |
| Typhula phacorrhiza | Basidiomycota | Agaricomycetes | Agaricales | Typhulaceae | snow mold | 1 |
| Uredo cajani | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | rust | 1 |
| Uredo dioscoreicola | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | rust | 1 |
| Uredo musae | Basidiomycota | Urediniomycetes | Uredinales | Incertae sedis | leaf rust | 1 |
| Urocystis agropyri | Basidiomycota | Ustilaginomycetes | Urocystales | Urocystaceae | flag smut | 6 |
| Urocystis anemones | Basidiomycota | Ustilaginomycetes | Urocystales | Urocystaceae | smut | 3 |
| Urocystis cepulae | Basidiomycota | Ustilaginomycetes | Urocystales | Urocystaceae | onion smut | 1 |
| Urocystis colchici | Basidiomycota | Ustilaginomycetes | Urocystales | Urocystaceae | smut | 1 |
| Uromyces acuminatus | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Uromyces andropogonis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 5 |
| Uromyces appendiculatus | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 22 |
| Uromyces ari-triphylli | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Uromyces dactylidis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Uromyces dianthi | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Uromyces fabae | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 6 |
| Uromyces striatus | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 3 |
| Uromyces trifolii-repentis | Basidiomycota | Urediniomycetes | Uredinales | Pucciniaceae | rust | 1 |
| Ustilaginoidea virens | Ascomycota | Incertae sedis | Incertae sedis | Incertae sedis | false smut | 1 |
| Ustilago avenae | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | loose smut | 24 |
| Ustilago bethelii | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Ustilago buchloes | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Ustilago bullata | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 4 |
| Ustilago hordei | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | covered smut | 26 |
| Ustilago hypodytes | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 2 |
| Ustilago maydis | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 24 |
| Ustilago minima | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Ustilago nuda | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 5 |
| Ustilago striiformis | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 14 |
| Ustilago trichophora | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Ustilago tritici | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | loose smut of wheat or barley | 33 |
| Ustilago utriculosa | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | smut | 1 |
| Ustilago zeae | Basidiomycota | Ustilaginomycetes | Ustilaginales | Ustilaginaceae | corn smut | 18 |
| Valsa abietis | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Valsa canker | 1 |
| Valsa ambiens | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Valsa canker | 18 |
| Valsa ceratosperma | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Valsa canker | 1 |
| Valsa cypri | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Valsa canker | 1 |
| Valsa kunzei | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cytospora canker of spruce | 4 |
| Valsa quaternata | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | canker | 1 |
| Valsa sordida | Ascomycota | Sordariomycetes | Diaporthales | Valsaceae | Cytospora canker | 17 |
| Venturia carpophila | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | peach scab | 3 |
| Venturia inaequalis | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | apple scab | 37 |
| Venturia macularis | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | Venturia leaf blight | 1 |
| Venturia populina | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | shepherd's crook leaf and shoot blight | 6 |
| Venturia saliciperda | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | willow scab | 1 |
| Venturia tremulae | Ascomycota | Dothideomycetes | Pleosporales | Venturiaceae | shepherd's crook leaf and shoot blight | 3 |
| Verticillium albo-atrum | Ascomycota | Sordariomycetes | Hypocreales | Incertae sedis | Verticillium wilt | 40 |
| Verticillium dahliae | Ascomycota | Sordariomycetes | Hypocreales | Incertae sedis | Verticillium wilt | 40 |
| Virgella robusta | Ascomycota | Leotiomycetes | Rhytismatales | Rhytismataceae | needle cast | 1 |
| Volutella buxi | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Volutella blight | 1 |
| Volutella pachysandrae | Ascomycota | Sordariomycetes | Hypocreales | Nectriaceae | Volutella blight | 2 |
| Wilcoxina mikolae | Ascomycota | Pezizomycetes | Pezizales | Pyronemataceae | mycorrhizae | 1 |
| Wilsonomyces carpophilus | Ascomycota | Dothideomycetes | Dothideales | Incertae sedis | Stigmina fungus | 4 |
| Xylaria mali | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | black rot | 2 |
| Xylaria polymorpha | Ascomycota | Sordariomycetes | Xylariales | Xylariaceae | black root rot | 2 |