# Lijst van Inocybe-soorten

Inocybe is een geslacht van paddenstoelen.
Volgens Index Fungorum telt het geslacht 1242 soorten (peildatum mei 2022):
| Soortnaam | Auteur(s) | Publicatiejaar |
| Inocybe aberrans | (E. Horak) Garrido | 1988 |
| Inocybe abietis | Kühner | 1955 |
| Inocybe abjecta | P. Karst. | 1879 |
| Inocybe abnormispora | Alessio | 1987 |
| Inocybe abundans | Murrill | 1911 |
| Inocybe acaciae | Matheny & Bougher | 2017 |
| Inocybe acanthosperma | Matheny & Bougher | 2017 |
| Inocybe acriolens | Grund & D.E. Stuntz | 1975 |
| Inocybe acuta (Spitse moerasvezelkop) | Boud. | 1917 |
| Inocybe acutata | Takah. Kobay. & Nagas. | 1993 |
| Inocybe acutoides | Kokkonen & Vauras | 2012 |
| Inocybe acutopapillata | E. Ludw. | 2017 |
| Inocybe acystidiosa | Kauffman | 1924 |
| Inocybe adorabilis | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe adunans | (Britzelm.) Sacc. | 1887 |
| Inocybe aemula | (Britzelm.) Sacc. | 1887 |
| Inocybe aequalis | (E. Horak) Garrido | 1988 |
| Inocybe aerea | E. Ludw. | 2017 |
| Inocybe aeruginascens (Groenverkleurende vezelkop) | Babos | 1970 |
| Inocybe affinis | (Pers.) Fayod | 1893 |
| Inocybe agglutinata | Peck | 1888 |
| Inocybe agordina | Bizio | 2000 |
| Inocybe ahmadii | Farooqi, Niazi & Khalid | 2017 |
| Inocybe alabamensis | Kauffman | 1924 |
| Inocybe alachuana | Murrill | 1941 |
| Inocybe alberichiana | Bandini & B. Oertel | 2021 |
| Inocybe albicans | Velen. | 1920 |
| Inocybe albidipes | Cleland & Cheel | 1918 |
| Inocybe albidolamellata | (Britzelm.) Sacc. | 1895 |
| Inocybe albido-ochracea | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe albipes | Gillet | 1884 |
| Inocybe albodisca | Peck | 1898 |
| Inocybe albofibrillosa | Stangl & Schmid-Heckel | 1985 |
| Inocybe albofloccosa | Matheny & Bougher | 2017 |
| Inocybe albomarginata (Kleinsporige knolvezelkop) | Velen. | 1920 |
| Inocybe albonitens | C.K. Pradeep & Matheny | 2016 |
| Inocybe alboperonata | Kühner | 1988 |
| Inocybe albopruinata | Herp. | 1912 |
| Inocybe albostipitata | Bon & E. Ferrari ex Carteret & Reumaux | 2017 |
| Inocybe albovelata | Reumaux | 1984 |
| Inocybe albovelutipes (Bleeksteelvezelkop) | Stangl | 1980 |
| Inocybe albovestita | E. Horak | 1978 |
| Inocybe alboviscida | (E. Horak) Garrido | 1988 |
| Inocybe alienella | (Britzelm.) Sacc. | 1887 |
| Inocybe alienospora | (Corner & E. Horak) Garrido | 1988 |
| Inocybe alloumbrina | Matheny & Bougher | 2017 |
| Inocybe alluvionis | Stangl & J. Veselský | 1976 |
| Inocybe alnea (Elzenvezelkop) | Stangl | 1979 |
| Inocybe alpigenes | (E. Horak) Bon | 1997 |
| Inocybe alpinomarginata | C.L. Cripps, E. Larss. & Vauras | 2019 |
| Inocybe amarescens | Farl. & Burt | 1929 |
| Inocybe amazoniensis | Singer & I.J.A. Aguiar | 1983 |
| Inocybe ambigua (Kastanjebruin poedersteeltje) | Romagn. | 1979 |
| Inocybe amblyospora | Kühner | 1953 |
| Inocybe amblyospora | Kühner | 1955 |
| Inocybe amelandica | Bandini & B. Oertel | 2020 |
| Inocybe amethystina (Paarssteelvezelkop) | Kuyper | 1986 |
| Inocybe amicta | Kokkonen & Vauras | 2012 |
| Inocybe ammophila | G.F. Atk. | 1918 |
| Inocybe amoenolens | Kühner | 1988 |
| Inocybe ampullaceocystidiata | Shchukin | 1985 |
| Inocybe amygdalina | (E. Horak) Garrido | 1988 |
| Inocybe amygdalispora | Métrod | 1956 |
| Inocybe amygdalospora | Métrod ex Cheype & Contu | 2005 |
| Inocybe analogica | (Britzelm.) Sacc. | 1887 |
| Inocybe anfractuosa | Caiafa & M.E. Sm. | 2021 |
| Inocybe angulatosquamulosa | Stangl | 1984 |
| Inocybe angustifolia | (Corner & E. Horak) Garrido | 1988 |
| Inocybe angustispora | Bessette & Fatto | 1998 |
| Inocybe antillana | Pegler | 1983 |
| Inocybe antoniniana | E. Sesli, Bandini & Krisai | 2020 |
| Inocybe appendiculata (Franjevezelkop) | Kühner | 1955 |
| Inocybe arctica | E. Larss., Vauras & C.L. Cripps | 2018 |
| Inocybe areolatodiffracta | E. Ludw. | 2017 |
| Inocybe argentea | (Singer) Singer | 1931 |
| Inocybe argenteolutea | Vauras | 1997 |
| Inocybe argentina | Speg. | 1898 |
| Inocybe argillacea | (Pers.) Singer | 1961 |
| Inocybe armeniaca | Huijsman | 1974 |
| Inocybe armeniacofibrillosa | E. Ludw. | 2017 |
| Inocybe asinia | Kalchbr. | 1875 |
| Inocybe asinina | (Kalchbr.) Sacc. | 1887 |
| Inocybe assimilata (Kleine knolvezelkop) | Britzelm. | 1881 |
| Inocybe asterospora (Sterspoorvezelkop) | Quél. | 1880 |
| Inocybe astoriana | Murrill | 1911 |
| Inocybe astraiana | Bandini & B. Oertel | 2020 |
| Inocybe athenana | Bandini, B. Oertel & U. Eberh. | 2020 |
| Inocybe atrisquamosa | Matheny & Bougher | 2017 |
| Inocybe atrorubripes | Matheny, Bougher & M. Ryberg | 2017 |
| Inocybe atroumbonata | Hongo | 1966 |
| Inocybe audens | Bandini, Christan & Dondl | 2021 |
| Inocybe aurantiifolia | Beller | 1979 |
| Inocybe aurantiobrunnea | Esteve-Rav. & García Blanco | 2003 |
| Inocybe aurantiocystidiata | E. Turnbull & Watling | 1995 |
| Inocybe aurantioumbonata | Franchi & M. Marchetti | 2008 |
| Inocybe aurea (Goudgele vezelkop) | Huijsman | 1955 |
| Inocybe aureoglabra | E. Ludw. | 2017 |
| Inocybe aureolamellata | (Britzelm.) Sacc. | 1895 |
| Inocybe aureorimosa | Matheny & Bougher | 2017 |
| Inocybe auricoma (Gele witsteelvezelkop) | (Batsch) Sacc. | 1887 |
| Inocybe auricomella | Kühner | 1988 |
| Inocybe auritelloides | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe aurivenia | (Batsch) Bres. | 1930 |
| Inocybe australiensis | Cleland & Cheel | 1918 |
| Inocybe austrofibrillosa | Grgur. | 2002 |
| Inocybe austrofibrillosipes | Matheny, Bougher & G.M. Gates | 2018 |
| Inocybe austrolilacina | Wartchow & R.M.B. Silveira | 2013 |
| Inocybe austrosquarrosa | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe avellana | P. Kumm. | 1871 |
| Inocybe avellaneifolia | Matheny & Bougher | 2017 |
| Inocybe avellaneocephala | E. Ludw. | 2017 |
| Inocybe avenacea | Velen. | 1920 |
| Inocybe ayangannae | Matheny, Aime & T.W. Henkel | 2003 |
| Inocybe ayeri | Furrer-Ziogas | 1987 |
| Inocybe babruka | K.P.D. Latha & Manim. | 2017 |
| Inocybe bakeri | Peck | 1909 |
| Inocybe baltica | Vauras & E. Larss. | 2016 |
| Inocybe barrasae | Esteve-Rav. | 2001 |
| Inocybe basicitrata | Jul. Schäff. | 1947 |
| Inocybe basicitrata | Jul. Schäff. ex Moënne-Locc. | 2000 |
| Inocybe beatifica | Bandini & B. Oertel | 2021 |
| Inocybe bella | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe belleri | Bon | 2002 |
| Inocybe bellidiana | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe bicolor | E. Ludw. | 2017 |
| Inocybe bicornis | Braaten, Bougher & Matheny | 2013 |
| Inocybe bipindiensis | Henn. | 1901 |
| Inocybe bivela | Kühner | 1988 |
| Inocybe bivela | Kühner | 1989 |
| Inocybe blandula | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe bolbitioides | Carteret & Reumaux | 2013 |
| Inocybe bombina | Bandini & B. Oertel | 2019 |
| Inocybe borealis | M. Lange | 1957 |
| Inocybe boreoaustralis | Matheny & Bougher | 2017 |
| Inocybe boreocarelica | Kokkonen & Vauras | 2012 |
| Inocybe botaurina | Bandini & B. Oertel | 2019 |
| Inocybe bresadolae (Rossige vezelkop) | Massee | 1904 |
| Inocybe bresadolana | Bon | 1983 |
| Inocybe brevicula | Matheny & Bougher | 2017 |
| Inocybe brevicystis | Métrod | 1956 |
| Inocybe brevicystis | Métrod ex Kuyper | 1986 |
| Inocybe brevipes | Contu | 1988 |
| Inocybe brevisquamulosa | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe bridgesiana | Singer | 1953 |
| Inocybe brijunica | Mešić, Tkalčec & Haelew. | 2021 |
| Inocybe brunnea | Quél. | 1880 |
| Inocybe brunnea | K. Syme | 1992 |
| Inocybe brunneidisca | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe brunneoflavescens | Carteret | 2017 |
| Inocybe brunneolipes | Grund & D.E. Stuntz | 1970 |
| Inocybe brunneolutea | E. Horak | 2018 |
| Inocybe brunneotomentosa (Valse zwartvoetvezelkop) | Huijsman | 1978 |
| Inocybe brunneovillosa | (Jungh.) Dörfelt & Zschiesch. | 1986 |
| Inocybe brunnescens | Earle | 1905 |
| Inocybe brunnescentipes | E. Ludw. | 2017 |
| Inocybe bubakii | Velen. | 1920 |
| Inocybe bufonia | Kokkonen & Vauras | 2012 |
| Inocybe bulbinella | Matheny & Bougher | 2017 |
| Inocybe bulbosa | Peck | 1909 |
| Inocybe caballeroi | C.E. Hermos. & Esteve-Rav. | 2005 |
| Inocybe cacaocolor | Matheny & Bougher | 2017 |
| Inocybe caerulata | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe caesaraugustae | G. Muñoz, Esteve-Rav. & Pancorbo | 2022 |
| Inocybe caesariata | (Fr.) P. Karst. | 1879 |
| Inocybe caespitosa | Velen. | 1922 |
| Inocybe caespitosella | Speg. | 1926 |
| Inocybe calcaris | Métrod | 1953 |
| Inocybe calida (Kleine sterspoorvezelkop) | Velen. | 1920 |
| Inocybe californica | Kauffman | 1924 |
| Inocybe callichroa | E. Horak | 2018 |
| Inocybe calocephala | Matheny & Bougher | 2017 |
| Inocybe calocystis | Carteret & Reumaux | 2017 |
| Inocybe calopedes | Matheny & Bougher | 2010 |
| Inocybe calospora (Stekelspoorvezelkop) | Quél. | 1881 |
| Inocybe calosporoides | L.G. Krieglst. | 2019 |
| Inocybe calosporoides | L.G. Krieglst. | 2019 |
| Inocybe camelicolor | E. Ludw. | 2017 |
| Inocybe campestris | Matheny & Bougher | 2017 |
| Inocybe candidipes | Kropp & Matheny | 2004 |
| Inocybe canescens | J. Favre | 1955 |
| Inocybe caprimulgi | Vauras & E. Larss. | 2015 |
| Inocybe capucina | (Fr.) P. Karst. | 1879 |
| Inocybe carbonaria | Velen. | 1920 |
| Inocybe carelica | Singer | 1938 |
| Inocybe carneicaulis | E. Ludw. | 2017 |
| Inocybe carolinensis | Matheny & Kudzma | 2019 |
| Inocybe caroticolor | T. Bau & Y.G. Fan | 2013 |
| Inocybe carpinacea | Velen. | 1947 |
| Inocybe carpta | (Scop.) P. Kumm. | 1871 |
| Inocybe castanea | Peck | 1904 |
| Inocybe castanea | Velen. | 1920 |
| Inocybe castaneae-sativae | J.Aug. Schmitt | 2020 |
| Inocybe castaneicolor | A. La Rosa, Bizio, Saitta & Tedersoo | 2017 |
| Inocybe castaneoides | Peck | 1913 |
| Inocybe castaneolamellata | (Britzelm.) Lapl. | 1894 |
| Inocybe castanopsis | Hruby | 1930 |
| Inocybe castorina | Bandini & B. Oertel | 2020 |
| Inocybe casuarinae | Corner & E. Horak | 1979 |
| Inocybe catalaunica | Singer | 1947 |
| Inocybe caucasica | Singer | 1937 |
| Inocybe caulis-aurorae | E. Ludw. | 2017 |
| Inocybe cavalcantiae | Wartchow | 2020 |
| Inocybe cavipes | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe cerasphora | Singer | 1953 |
| Inocybe cerea | E. Horak | 1978 |
| Inocybe cervenianensis | Ferisin, Bizio, Aiardi, Bersan & Dovana | 2021 |
| Inocybe ceskae | Bandini, Esteve-Rav. & B. Oertel | 2018 |
| Inocybe chalcoceps | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe chalcodoxantha | Grund & D.E. Stuntz | 1968 |
| Inocybe chelanensis | D.E. Stuntz | 1947 |
| Inocybe chilensis | Singer | 1965 |
| Inocybe chondroderma | D.E. Stuntz ex Matheny, Norvell & E.C. Giles | 2013 |
| Inocybe chondrospora | Einhell. & Stangl | 1979 |
| Inocybe chrysocephala | F.H. Nishida | 1988 |
| Inocybe chrysochroa | Takah. Kobay. & Courtec. | 1993 |
| Inocybe cicatricata | Ellis & Everh. | 1889 |
| Inocybe cinchonensis | (Murrill) Dennis | 1968 |
| Inocybe cincinnata (Violetbruine vezelkop) | (Fr.) Quél. | 1872 |
| Inocybe cinerascentipes | Huijsman | 1955 |
| Inocybe cingulata | E. Horak | 1979 |
| Inocybe cingulatipes | (Corner & E. Horak) Garrido | 1988 |
| Inocybe cinnabarina | Hruby | 1930 |
| Inocybe cinnamomea | A.H. Sm. | 1941 |
| Inocybe cinnamomea | A. Pearson ex Pegler | 1996 |
| Inocybe cinnamomeiceps | E. Ludw. | 2017 |
| Inocybe cinnamomicolor | Reumaux | 2001 |
| Inocybe cistobulbipes | Esteve-Rav. & Vila | 2002 |
| Inocybe citrinofolia | Métrod | 1956 |
| Inocybe clandestina | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe clavata | Takah. Kobay. | 2002 |
| Inocybe claviceps | (Fr.) P. Karst. | 1879 |
| Inocybe claviger | E. Horak & Bas | 1981 |
| Inocybe clypeata | Matheny & Bougher | 2017 |
| Inocybe coelestium | Kuyper | 1985 |
| Inocybe coerulescens | Kobayasi | 1952 |
| Inocybe collivaga | Velen. | 1920 |
| Inocybe comatella | (Peck) Sacc. | 1887 |
| Inocybe comis | Bandini & B. Oertel | 2022 |
| Inocybe concinnula | J. Favre | 1955 |
| Inocybe confusa | P. Karst. | 1888 |
| Inocybe confusula | (Britzelm.) Sacc. | 1887 |
| Inocybe congregata | A. Pearson | 1950 |
| Inocybe conica | P. Larsen | 1931 |
| Inocybe conicoalba | E. Horak | 1979 |
| Inocybe connexa | Kauffman | 1924 |
| Inocybe conspicuispora | Buyck & Eyssart. | 1999 |
| Inocybe coprinoides | E. Ludw. | 2017 |
| Inocybe corcontica | Velen. | 1920 |
| Inocybe cordae | Velen. | 1920 |
| Inocybe corneri | (E. Horak) Garrido | 1988 |
| Inocybe corrubescens | Singer | 1931 |
| Inocybe corsica | Esteve-Rav., Pancorbo & G. Moreno | 2021 |
| Inocybe cortinata | Rolland | 1901 |
| Inocybe corydalina (Groenige perenvezelkop) | Quél. | 1875 |
| Inocybe costinitii | Bizio, Ferisin & Dovana | 2016 |
| Inocybe crassicystidiata | Pegler | 1983 |
| Inocybe crassipes | (Cooke & Massee) Pegler | 1965 |
| Inocybe cryptocystis (Verborgen vezelkop) | D.E. Stuntz | 1954 |
| Inocybe cucullata | C. Martín | 1894 |
| Inocybe cuniculina | Bandini & B. Oertel | 2020 |
| Inocybe curcumina | Bandini, B. Oertel & U. Eberh. | 2018 |
| Inocybe curtispora | E. Ludw. | 2017 |
| Inocybe curvipes (Zilversteelvezelkop) | P. Karst. | 1890 |
| Inocybe cutifracta | Petch | 1917 |
| Inocybe cyaneovirescens | Henn. | 1900 |
| Inocybe cylindrispora | Murrill | 1945 |
| Inocybe cylindrocystis | G.F. Atk. | 1918 |
| Inocybe cystidiosa | (A.H. Sm.) Singer | 1951 |
| Inocybe davisiana | Kauffman | 1924 |
| Inocybe debilipes | P. Karst. | 1889 |
| Inocybe deborae | E. Ferrari | 2003 |
| Inocybe decemgibbosa | (Kühner) Vauras | 1997 |
| Inocybe decipiens (Bedrieglijke vezelkop) | Bres. | 1892 |
| Inocybe decipientoides | Peck | 1907 |
| Inocybe deducta | (Britzelm.) Sacc. | 1887 |
| Inocybe deflectens | (Britzelm.) Sacc. | 1887 |
| Inocybe deglubens | (Fr.) Gillet | 1874 |
| Inocybe deianae | Eyssart. | 2007 |
| Inocybe demetris | Bandini & U. Eberh. | 2022 |
| Inocybe demitrata | Velen. | 1920 |
| Inocybe densipruinosa | E. Horak | 2018 |
| Inocybe dentifera | Velen. | 1947 |
| Inocybe derbschii | Schwöbel & Stangl | 1982 |
| Inocybe descissa | (Fr.) Quél. | 1872 |
| Inocybe desquamans | Peck | 1906 |
| Inocybe destruens | E. Horak | 1978 |
| Inocybe devulgata | (Britzelm.) Sacc. | 1887 |
| Inocybe dewrangia | Grgur. | 1997 |
| Inocybe diabolica | Vauras | 1994 |
| Inocybe digitula | Bandini, Christan & B. Oertel | 2020 |
| Inocybe dilutecinnamomea | Singer | 1954 |
| Inocybe diminuta | Peck | 1906 |
| Inocybe dissimilis | E. Horak | 2018 |
| Inocybe dissocystis | Singer | 1953 |
| Inocybe distantifolia | E. Ludw. | 2017 |
| Inocybe diversa | E. Horak | 2018 |
| Inocybe dolichospora | Malençon | 1970 |
| Inocybe drenthensis | Bandini & B. Oertel | 2021 |
| Inocybe dryadiana | Bandini & B. Oertel | 2021 |
| Inocybe duella | (Britzelm.) Sacc. | 1895 |
| Inocybe dulcamara (Gewone viltkop) | Sacc. | 1887 |
| Inocybe dulciolens | Matheny & Kudzma | 2019 |
| Inocybe dunensis (Geelbruine duinvezelkop) | P.D. Orton | 1960 |
| Inocybe duploparvula | E. Ludw. | 2017 |
| Inocybe duriuscula (Grote bleeksteelvezelkop) | Rea | 1908 |
| Inocybe dvaliniana | Bandini & B. Oertel | 2021 |
| Inocybe earleana | Kauffman | 1924 |
| Inocybe eburnea | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe echinocarpa | Ellis & Everh. | 1889 |
| Inocybe echinosimilis | (E. Horak) Garrido | 1988 |
| Inocybe echinospora | Egeland | 1913 |
| Inocybe egenula | J. Favre | 1955 |
| Inocybe elata | T. Bau | 2018 |
| Inocybe elegans | Reumaux | 2001 |
| Inocybe elegantissima | Carteret & Reumaux | 2017 |
| Inocybe ellipsoidispora | E. Ludw. | 2017 |
| Inocybe elliptica | Takah. Kobay. | 2002 |
| Inocybe emergens | (Cleland) Grgur. | 1997 |
| Inocybe enigmatica | Matheny & Aime | 2012 |
| Inocybe entolomatospora | Bidaud, Ferville & Armada | 2012 |
| Inocybe epidendron | Matheny, Aime & T.W. Henkel | 2003 |
| Inocybe ericetorum | Vauras & Kokkonen | 2012 |
| Inocybe erinaceomorpha | Stangl & J. Veselský | 1979 |
| Inocybe eriocaulis | Matheny & Bougher | 2017 |
| Inocybe eriocephala | Sacc. | 1887 |
| Inocybe erythospilota | Grund & D.E. Stuntz | 1984 |
| Inocybe erythrobasis | Singer | 1954 |
| Inocybe euganea | Giliberto, P. Alvarado & Bizio | 2018 |
| Inocybe eurycystis | E.H.L. Krause | 1929 |
| Inocybe euthelella | Peck | 1915 |
| Inocybe eutheles | (Fr.) Quél. | 1880 |
| Inocybe eutheloides | Peck | 1887 |
| Inocybe euviolacea | E. Ludw. | 2017 |
| Inocybe excoriata | Peck | 1904 |
| Inocybe exigens | Matheny & Bougher | 2017 |
| Inocybe exigua | (Cleland) Grgur. | 1997 |
| Inocybe exilis (Slanke roodpootvezelkop) | (Kuyper) Jacobsson & E. Larss. | 2008 |
| Inocybe explanata | (Britzelm.) Sacc. | 1895 |
| Inocybe faeculenta | Bousset | 1939 |
| Inocybe fallax | Peck | 1904 |
| Inocybe farinosipes | Matheny, Bougher & M. Ryberg | 2017 |
| Inocybe fasciata | Sacc. | 1891 |
| Inocybe fastibilis | (Pers.) P. Karst. | 1879 |
| Inocybe fastuosa | Takah. Kobay. | 1995 |
| Inocybe favorabilis | (Britzelm.) Lapl. | 1894 |
| Inocybe favrei | Bon | 1985 |
| Inocybe favrei | Nespiak | 1990 |
| Inocybe favrei-cavipes | Bon | 1997 |
| Inocybe fechtneri | Velen. | 1920 |
| Inocybe felipponei | (Speg.) Singer | 1951 |
| Inocybe ferruginea | Bon | 1978 |
| Inocybe fibrillosibrunnea | O.K. Mill. & R.N. Hilton | 1987 |
| Inocybe fibrillosipes | E. Ludw. | 2017 |
| Inocybe fibrosa | (Sowerby) Gillet | 1876 |
| Inocybe fibrosa | Velen. | 1939 |
| Inocybe fibrosoides (Ivoorvezelkop) | Kühner | 1933 |
| Inocybe fibrosolacerata | (Britzelm.) Sacc. & P. Syd. | 1899 |
| Inocybe filiana | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe firma | (Pers.) P. Karst. | 1879 |
| Inocybe fissuratula | E. Ludw. | 2017 |
| Inocybe flagellata | (Reumaux) Reumaux | 2001 |
| Inocybe flava | (Clem.) Massee | 1904 |
| Inocybe flavidolilacina | (Britzelm.) Lapl. | 1894 |
| Inocybe flavoalbida | Matheny & Bougher | 2017 |
| Inocybe flavobrunnea | Y.C. Wang | 1973 |
| Inocybe flavobrunnescens | Esteve-Rav., G. Moreno & Bizio | 2011 |
| Inocybe flavosquamulosa | C.K. Pradeep & Matheny | 2016 |
| Inocybe floccipes | (Esteve-Rav. & Fouchier) Esteve-Rav. & Bizio | 2022 |
| Inocybe floccosibrunnea | Matheny & Bougher | 2017 |
| Inocybe floccosistipitata | K.P.D. Latha & Manim. | 2017 |
| Inocybe flocculosa (Vlokkige vezelkop) | Sacc. | 1887 |
| Inocybe floridana | Murrill | 1945 |
| Inocybe fragilis | Matheny & Bougher | 2017 |
| Inocybe fragilissima | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe fragrans | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe fraudans (Perenvezelkop) | (Britzelm.) Sacc. | 1887 |
| Inocybe frigidula | J. Favre | 1955 |
| Inocybe froudistii | Matheny & Bougher | 2017 |
| Inocybe frumentacea | (Bull.) Bres. | 1900 |
| Inocybe fuegiana | (Speg.) Speg. | 1891 |
| Inocybe fuligineoalba | E. Ludw. | 2017 |
| Inocybe fuligineoatra (Zwarte knolvezelkop) | Huijsman | 1955 |
| Inocybe fulvella | Bres. | 1892 |
| Inocybe fulvelliceps | Murrill | 1945 |
| Inocybe fulvida | Bres. | 1930 |
| Inocybe fulvidula | Velen. | 1939 |
| Inocybe fulvilubrica | Matheny, Bougher & G.M. Gates | 2012 |
| Inocybe fulvo-olivacea | Cleland | 1933 |
| Inocybe fulvotomentosa | Matheny, Bougher, R. Rob. & K. Syme | 2018 |
| Inocybe fumosifolia | Speg. | 1926 |
| Inocybe furcata | Takah. Kobay. | 2003 |
| Inocybe furfurea | Kühner | 1955 |
| Inocybe fuscata | Singer | 1953 |
| Inocybe fuscescentipes | Kühner | 1988 |
| Inocybe fuscicothurnata | Grund & D.E. Stuntz | 1975 |
| Inocybe fuscidula (Sombere vezelkop) | Velen. | 1920 |
| Inocybe fuscocinnamomea | Singer | 1953 |
| Inocybe fuscodisca | (Peck) Massee | 1904 |
| Inocybe fuscoperonata | Corner & E. Horak | 1979 |
| Inocybe fuscosquarrosa | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe fuscovinacea | Carteret | 2000 |
| Inocybe gaiana | Bandini & B. Oertel | 2021 |
| Inocybe galactica | Bandini & B. Oertel | 2022 |
| Inocybe gandalfiana | Bandini & B. Oertel | 2021 |
| Inocybe gansuensis | T. Bau & Y.G. Fan | 2020 |
| Inocybe gbadjii | De Kesel | 2004 |
| Inocybe gemina | (E. Horak) Garrido | 1988 |
| Inocybe geniculata | Matheny & Bougher | 2017 |
| Inocybe geoaustralis | Matheny & Watling | 2004 |
| Inocybe geophylla (Witte satijnvezelkop) | P. Kumm. | 1871 |
| Inocybe geophyllomorpha | Singer | 1953 |
| Inocybe ghanaensis | Pegler | 1969 |
| Inocybe ghibliana | Bandini & B. Oertel | 2021 |
| Inocybe giacomi | J. Favre | 1955 |
| Inocybe gibbosula | (E. Horak) Garrido | 1988 |
| Inocybe gigacystis | Singer | 1953 |
| Inocybe gigantea | Bon | 1996 |
| Inocybe gigantispora | Murrill | 1945 |
| Inocybe gilibertoi | Para | 2020 |
| Inocybe gilviceps | Matheny, Bougher & Halling | 2017 |
| Inocybe gintliana | Velen. | 1920 |
| Inocybe glabra | Kauffman | 1918 |
| Inocybe glabrescens (Gladde vezelkop) | Velen. | 1920 |
| Inocybe glabripes (Kleinsporige vezelkop) | Ricken | 1915 |
| Inocybe glabrodisca (Sombere knobbelspoorvezelkop) | P.D. Orton | 1960 |
| Inocybe glandicolor | E. Ludw. | 2017 |
| Inocybe glareophila | Bidaud & Fillion | 1993 |
| Inocybe glaucescens | Matheny & Kudzma | 2019 |
| Inocybe glaucodisca | Buyck & Eyssart. | 1999 |
| Inocybe globulina | Bandini & B. Oertel | 2020 |
| Inocybe glutinosa | P. Karst. | 1879 |
| Inocybe glutinosifibrillosa | Takah. Kobay. | 2002 |
| Inocybe glutinosonigricans | E. Ludw. | 2017 |
| Inocybe godeyi (Blozende knolvezelkop) | Gillet | 1874 |
| Inocybe gomphocephala | Matheny & Bougher | 2017 |
| Inocybe goniopusio | Stangl | 1989 |
| Inocybe gracilenta | E. Ludw. | 2017 |
| Inocybe gracilior | E. Horak | 2018 |
| Inocybe gracillima | Carteret & Reumaux | 2012 |
| Inocybe graminicola | (Nees) Roze | 1876 |
| Inocybe grammata (Stinkvezelkop) | Quél. | 1880 |
| Inocybe grammatoides | Esteve-Rav., Pancorbo & E. Rubio | 2019 |
| Inocybe grammocephala | Malençon | 1970 |
| Inocybe grammopodia | Malençon | 1970 |
| Inocybe granulosiceps | (E. Horak) Garrido | 1988 |
| Inocybe granulosipes | Cleland | 1933 |
| Inocybe graveolens | Schwalb | 1894 |
| Inocybe griseobrunnea | Métrod | 1956 |
| Inocybe griseolilacina (Lilagrijze vezelkop) | J.E. Lange | 1917 |
| Inocybe griseoscabrosa | (Peck) Earle | 1903 |
| Inocybe griseotarda | Poirier | 2002 |
| Inocybe griseovelata (Grijsbruine vezelkop) | Kühner | 1955 |
| Inocybe grusiana | Bandini & B. Oertel | 2021 |
| Inocybe gymnopilus | Kühner | 1988 |
| Inocybe gypsea | Carteret & Reumaux | 2013 |
| Inocybe haemacta (Blozende stinkvezelkop) | (Berk. & Cooke) Sacc. | 1887 |
| Inocybe hainanensis | T. Bau & Y.G. Fan | 2014 |
| Inocybe halophila | R. Heim | 1931 |
| Inocybe hebelomoides | Murrill | 1945 |
| Inocybe heidelbergensis | Bandini & B. Oertel | 2019 |
| Inocybe helianthemi | E. Ludw. & M. Huth | 2017 |
| Inocybe helobia | (Kuyper) Bandini, B. Oertel & U. Eberh. | 2020 |
| Inocybe hemileuca | F.H. Nishida & D.E. Stuntz | 1988 |
| Inocybe henryi | Reumaux | 1999 |
| Inocybe heterochrominea | Grund & D.E. Stuntz | 1983 |
| Inocybe heterocystis | Kühner | 1988 |
| Inocybe heterogenea | (Britzelm.) Sacc. | 1895 |
| Inocybe heterosemen | Carteret & Reumaux | 2012 |
| Inocybe hettematica | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe hinnulea | Kühner | 1988 |
| Inocybe hinoana | Yukawa & Katum. | 1954 |
| Inocybe hirculus | Vauras | 1995 |
| Inocybe hirtella (Amandelvezelkop) | Bres. | 1884 |
| Inocybe hirtellarum | Carteret & Reumaux | 2017 |
| Inocybe hirtelloides (Okergele vezelkop) | Stangl & J. Veselský | 1974 |
| Inocybe hiulca | (Fr.) Gillet | 1876 |
| Inocybe homomorpha | (Singer) Singer | 1931 |
| Inocybe horakii | Raithelh. | 1977 |
| Inocybe horakomyces | Garrido | 1988 |
| Inocybe hotsoniana | D.E. Stuntz | 1947 |
| Inocybe huijsmanii (Bleeklila vezelkop) | Kuyper | 1986 |
| Inocybe humidicola | Matheny & Bougher | 2017 |
| Inocybe humilis | J. Favre | 1960 |
| Inocybe humilis | (J. Favre & E. Horak) Esteve-Rav. & Vila | 1998 |
| Inocybe hydrocybiformis | (Corner & E. Horak) Garrido | 1988 |
| Inocybe hygrophana | Glowinski & Stangl | 1981 |
| Inocybe hygrophoroides | Shchukin | 1985 |
| Inocybe hygrophorus | Kühner | 1953 |
| Inocybe hymenocarpa | Matheny & Bougher | 2017 |
| Inocybe hypervelata | Bizio & Cervini | 2005 |
| Inocybe hyperythra | Rick | 1930 |
| Inocybe hypophaea | Furrer-Ziogas | 1952 |
| Inocybe hypotheja | Kühner | 1988 |
| Inocybe hystrix (Schubbige vezelkop) | (Fr.) P. Karst. | 1879 |
| Inocybe ianthinofolia | Pegler | 1983 |
| Inocybe ianthinopes | Pancorbo, G. Muñoz & Esteve-Rav. | 2022 |
| Inocybe ignobilis | Lapl. | 1894 |
| Inocybe illariae | Caiafa & M.E. Sm. | 2021 |
| Inocybe imbecillis | (Pass.) Sacc. | 1887 |
| Inocybe imbricata | (Cleland) Garrido | 1988 |
| Inocybe immaculipes | Kühner | 1988 |
| Inocybe immigrans | Malloch | 1982 |
| Inocybe impensibilis | (Britzelm.) Sacc. | 1887 |
| Inocybe impexa (Grauwe zandvezelkop) | (Lasch) Kuyper | 1986 |
| Inocybe inaensis | Kobayasi | 1952 |
| Inocybe incarnata (Vleeskleurige perenvezelkop) | Bres. | 1884 |
| Inocybe incognita | (E. Horak) Garrido | 1988 |
| Inocybe inconcinna | P. Karst. | 1890 |
| Inocybe indica | Sarwal | 1983 |
| Inocybe indissimilis | (Britzelm.) Sacc. | 1887 |
| Inocybe inedita | Britzelm. | 1882 |
| Inocybe infelix | Peck | 1887 |
| Inocybe infida | (Peck) Earle | 1903 |
| Inocybe infirma | E. Horak | 2018 |
| Inocybe infracta | Velen. | 1920 |
| Inocybe infumata | Kühner | 1988 |
| Inocybe injuncta | (Britzelm.) Sacc. | 1887 |
| Inocybe inodora (Geurloze vezelkop) | Velen. | 1920 |
| Inocybe inscripta | (Britzelm.) Lapl. | 1894 |
| Inocybe insequens | (Britzelm.) Sacc. | 1887 |
| Inocybe insignis | A.H. Sm. | 1941 |
| Inocybe insinuata | Kauffman | 1924 |
| Inocybe insuavis | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe insulana | K.P.D. Latha & Manim. | 2017 |
| Inocybe intermedia | E. Horak | 2018 |
| Inocybe intricata | Peck | 1909 |
| Inocybe invadens | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe invenusta | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe involuta (Bruine dennenvezelkop) | Kuyper | 1989 |
| Inocybe ionocaulis | Matheny & Bougher | 2017 |
| Inocybe ionocephala | Matheny | 2018 |
| Inocybe ionochlora | Romagn. | 1979 |
| Inocybe ionolepis | Cullington & E. Larss. | 2020 |
| Inocybe iringolkavensis | K.P.D. Latha & Manim. | 2016 |
| Inocybe irregularinodulosa | Takah. Kobay. | 2002 |
| Inocybe irregularis | E. Horak | 2018 |
| Inocybe iseranensis | E. Ferrari | 2010 |
| Inocybe iterata | (Britzelm.) Sacc. | 1887 |
| Inocybe jalapensis | (Murrill) Singer | 1958 |
| Inocybe jamaicensis | Murrill | 1912 |
| Inocybe javorkae | Babos & Stangl | 1985 |
| Inocybe johannae | Kühner | 1988 |
| Inocybe johannis-stanglii | Bandini, Esteve-Rav. & G. Moreno | 2018 |
| Inocybe jucunda | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe juniperina | M. Marchetti, Franchi & Bizio | 2004 |
| Inocybe kalchbrenneri | Hazsl. | 1884 |
| Inocybe kapila | K.P.D. Latha & Manim. | 2017 |
| Inocybe kasugayamensis | Hongo | 1963 |
| Inocybe kauffmanii | A.H. Sm. | 1939 |
| Inocybe kittilensis | Kokkonen & Vauras | 2012 |
| Inocybe knautiana | Bandini & B. Oertel | 2021 |
| Inocybe kobayasii | Hongo | 1959 |
| Inocybe kohistanensis | Jabeen, I. Ahmad & Khalid | 2016 |
| Inocybe krieglsteineri | Fern. Sas. | 2005 |
| Inocybe kurkuriya | K.P.D. Latha & Manim. | 2017 |
| Inocybe kuruvensis | K.P.D. Latha & Manim. | 2016 |
| Inocybe lacera (Zandpadvezelkop) | (Fr.) P. Kumm. | 1871 |
| Inocybe lacunarum | Vauras & E. Larss. | 2015 |
| Inocybe laeta | Alessio | 1979 |
| Inocybe laetior | D.E. Stuntz | 1950 |
| Inocybe laevigata | (P. Karst.) P. Karst. | 1889 |
| Inocybe laevigata | Velen. | 1920 |
| Inocybe laevispora | Hruby | 1930 |
| Inocybe lageniformis | Takah. Kobay. | 2002 |
| Inocybe lampetiana | Bandini & B. Oertel | 2021 |
| Inocybe lanatopurpurea | Esteve-Rav. & G. Moreno | 2014 |
| Inocybe langei (Grijsplaatvezelkop) | R. Heim | 1931 |
| Inocybe lanuginosa (Gewone wolvezelkop) | (Bull.) P. Kumm. | 1871 |
| Inocybe lapidicola | Brugaletta, Consiglio & M. Marchetti | 2019 |
| Inocybe lapponica | Kokkonen & Vauras | 2012 |
| Inocybe lasseri | Dennis | 1953 |
| Inocybe lasseroides | (E. Horak) Garrido | 1988 |
| Inocybe lateraria | Rick | 1920 |
| Inocybe latibulosa | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe laureata | Matheny & Bougher | 2017 |
| Inocybe laurina | Bandini, B. Oertel & C. Hahn | 2020 |
| Inocybe lavandulochlora | Esteve-Rav. & M. Villarreal | 2001 |
| Inocybe lechiana | Bandini, B. Oertel & U. Eberh. | 2020 |
| Inocybe lemmi | E. Larss., Vauras & C.L. Cripps | 2017 |
| Inocybe leochroma | Bandini, Vauras & B. Oertel | 2018 |
| Inocybe leonina | Esteve-Rav. & A. Caball. | 2009 |
| Inocybe lepidocephala | Speg. | 1898 |
| Inocybe lepidosparta | Wartchow | 2018 |
| Inocybe lepiotoides | Reumaux | 1983 |
| Inocybe leptoclada | Takah. Kobay. & Courtec. | 2000 |
| Inocybe leptocystella | G.F. Atk. | 1918 |
| Inocybe leptocystis | G.F. Atk. | 1918 |
| Inocybe leptoderma | Takah. Kobay. & Nukada | 2002 |
| Inocybe leptophylla (Purperbruine wolvezelkop) | G.F. Atk. | 1918 |
| Inocybe leptospermi | (E. Horak) Garrido | 1988 |
| Inocybe leucoblema (Bleekhoedviltkop) | Kühner | 1953 |
| Inocybe leucopoda | Velen. | 1920 |
| Inocybe leucotaenia | Matheny & Bougher | 2017 |
| Inocybe lilacinolamellata | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe lilacinomaculata | E. Ludw. & I.L. Franzén | 2017 |
| Inocybe lilacinosquamosa | Matheny, Aime & T.W. Henkel | 2003 |
| Inocybe lindrothii | (P. Karst.) Vauras & E. Larss. | 2014 |
| Inocybe lineata | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe longipes | Massee | 1908 |
| Inocybe longipes | Kauffman | 1924 |
| Inocybe longispora | M. Lange | 1957 |
| Inocybe lorillardiana | Murrill | 1911 |
| Inocybe lucifera | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe lucifuga | (Fr.) P. Kumm. | 1871 |
| Inocybe lutea | Kobayasi & Hongo | 1952 |
| Inocybe luteifolia | A.H. Sm. | 1941 |
| Inocybe luteifolia | (E. Horak) Garrido | 1988 |
| Inocybe luteipes | J. Favre | 1955 |
| Inocybe luteobulbosa | E. Horak | 1978 |
| Inocybe luteola | Takah. Kobay. | 2009 |
| Inocybe luteo-olivacea | Matheny, Bougher & Halling | 2017 |
| Inocybe luteotigrina | Carteret | 2017 |
| Inocybe lutescens | Velen. | 1920 |
| Inocybe macrocystis | Velen. | 1920 |
| Inocybe macrospora | Kobayasi | 1971 |
| Inocybe maculipes | J. Favre | 1955 |
| Inocybe magnibulbosa | E. Horak | 2018 |
| Inocybe magnicarpa | Takah. Kobay. | 2005 |
| Inocybe magnifica | (E. Horak) Garrido | 1988 |
| Inocybe magnifolia | Matheny, Aime & T.W. Henkel | 2012 |
| Inocybe malenconiana | Bon | 1997 |
| Inocybe mallocyboides | E. Ludw. | 2017 |
| Inocybe mallopoda | Matheny & Bougher | 2017 |
| Inocybe mammifera | M.M. Moser | 1992 |
| Inocybe mammillaris | Sacc. | 1887 |
| Inocybe mammosa | Velen. | 1920 |
| Inocybe manuelae | E. Ferrari & Bizio | 2006 |
| Inocybe manukanea | (E. Horak) Garrido | 1988 |
| Inocybe margaritispora (Schubbige knobbelspoorvezelkop) | (Berk.) Sacc. | 1887 |
| Inocybe marginata | Matheny, Aime & T.W. Henkel | 2012 |
| Inocybe mariluanensis | (Speg.) Singer | 1951 |
| Inocybe maritimoides | (Peck) Sacc. | 1887 |
| Inocybe marmoripes | G.F. Atk. | 1918 |
| Inocybe martinica | Pegler | 1983 |
| Inocybe mascardi | Raithelh. | 1990 |
| Inocybe masoviensis | Rudn.-Jez. | 1967 |
| Inocybe matrisdei | Singer | 1962 |
| Inocybe mediocris | (Corner & E. Horak) Garrido | 1988 |
| Inocybe megalospora | Rick | 1919 |
| Inocybe meirensongia | Y.G. Fan, W.J. Yu & L.S. Deng | 2022 |
| Inocybe melampyri | Velen. | 1947 |
| Inocybe melanopoda | D.E. Stuntz | 1954 |
| Inocybe melissolens | Reumaux | 2001 |
| Inocybe melleiconica | Grund & D.E. Stuntz | 1968 |
| Inocybe mellita | Matheny, Bougher & M. Ryberg | 2017 |
| Inocybe memorialis | Matheny & Bougher | 2017 |
| Inocybe mendica | E. Horak | 1978 |
| Inocybe menthi-gustans | F.H. Nishida | 1988 |
| Inocybe meridionalis | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe merletii | Quél. | 1885 |
| Inocybe messapica | Cervini | 2020 |
| Inocybe metrodiana | Bon ex Carteret & Reumaux | 2013 |
| Inocybe metrodii | Stangl & J. Veselský | 1979 |
| Inocybe micropyramis | (Berk. & Broome) Cooke | 1891 |
| Inocybe microsperma | E. Horak | 2018 |
| Inocybe microteroxantha | Grund & D.E. Stuntz | 1981 |
| Inocybe mimeana | Bandini & B. Oertel | 2020 |
| Inocybe minima | Peck | 1913 |
| Inocybe minima | Killerm. | 1925 |
| Inocybe minimispora | Reumaux | 1986 |
| Inocybe minuta | P. Karst. | 1906 |
| Inocybe minutispora | Murrill | 1945 |
| Inocybe minutissima | Carteret & Reumaux | 2012 |
| Inocybe mirabilis | Velen. | 1920 |
| Inocybe miranda | Carteret & Reumaux | 2013 |
| Inocybe misera | E. Horak | 2018 |
| Inocybe mitracea | Velen. | 1920 |
| Inocybe mitrata | P. Karst. | 1879 |
| Inocybe mixtiliformis | Singer | 1954 |
| Inocybe mixtilioides | Krieglst. | 1989 |
| Inocybe mixtilis (Gele knolvezelkop) | (Britzelm.) Sacc. | 1887 |
| Inocybe miyiensis | T. Bau & Y.G. Fan | 2013 |
| Inocybe moelleri | Eyssart. & A. Delannoy | 2006 |
| Inocybe monochroa | J. Favre | 1955 |
| Inocybe montana | Kobayasi | 1952 |
| Inocybe monticola | Kropp, Matheny & Nanagy. | 2010 |
| Inocybe moravica | Hruby | 1930 |
| Inocybe morganae | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe mucronata | R. Heim | 1931 |
| Inocybe multicingulata | E. Horak | 1979 |
| Inocybe multicolor | Raithelh. | 1977 |
| Inocybe multicoronata | A.H. Sm. | 1939 |
| Inocybe multifolia | Braaten, M.G. Wood & Matheny | 2013 |
| Inocybe mundula | (J. Favre) E. Horak |
| Inocybe muricellata (Geelschubbige vezelkop) | Bres. | 1905 |
| Inocybe muricellatoides | T. Bau & Y.G. Fan | 2020 |
| Inocybe murina | E. Larss., C.L. Cripps & Vauras | 2019 |
| Inocybe murinolilacina | Ellis & Everh. | 1889 |
| Inocybe murrayana | Cleland | 1933 |
| Inocybe mussooriensis | Sarwal | 1983 |
| Inocybe mutatoria | (Britzelm.) Lapl. | 1894 |
| Inocybe muthangensis | K.P.D. Latha & Manim. | 2016 |
| Inocybe mycenoides (Tengere vezelkop) | Kuyper | 1986 |
| Inocybe mystica | Stangl & Glowinski | 1980 |
| Inocybe mytiliodora | Stangl & Vauras | 1988 |
| Inocybe nahuelbutensis | Caiafa & M.E. Sm. | 2021 |
| Inocybe napiformis | Takah. Kobay. | 2009 |
| Inocybe napipes (Bruine knolvezelkop) | J.E. Lange | 1917 |
| Inocybe naucoriiformis | Velen. | 1939 |
| Inocybe nebularis | E. Ludw. | 2017 |
| Inocybe nematoloma | Joss. | 1960 |
| Inocybe nematoloma | Joss. | 1974 |
| Inocybe nemorosa | (R. Heim) Grund & D.E. Stuntz | 1968 |
| Inocybe neoflocculosa | Kobayasi | 1952 |
| Inocybe neomicrospora | Kobayasi | 1952 |
| Inocybe neorufula | Esteve-Rav., Macau & Ferville | 2012 |
| Inocybe neotropicalis | Singer, I.J.A. Aguiar & Ivory | 1983 |
| Inocybe neoumbrina | Kobayasi | 1952 |
| Inocybe nespiakii | Bon | 1996 |
| Inocybe neuhoffii | Bres. | 1926 |
| Inocybe neuquenensis | Singer | 1954 |
| Inocybe nigrescens | G.F. Atk. | 1918 |
| Inocybe nigrescentipes | Reumaux | 2001 |
| Inocybe nigricans | Matheny, Bougher & M. Ryberg | 2017 |
| Inocybe nigridisca | Peck | 1888 |
| Inocybe nigrodisca | Peck | 1888 |
| Inocybe niigatensis | Hongo | 1959 |
| Inocybe nikkoensis | Kobayasi | 1952 |
| Inocybe nitida | Velen. | 1920 |
| Inocybe nitidiuscula (Glanzende vezelkop) | (Britzelm.) Lapl. | 1894 |
| Inocybe nivea | E. Larss. | 2021 |
| Inocybe niveavelata | Matheny & Watling | 2004 |
| Inocybe nobilis | (R. Heim) Alessio | 1980 |
| Inocybe nobilissima | Matheny & Bougher | 2017 |
| Inocybe nodulosa | Kauffman | 1924 |
| Inocybe nodulosospora | Kobayasi | 1952 |
| Inocybe nodulospora | (Peck) Sacc. | 1891 |
| Inocybe norvegica | Vauras & E. Larss. | 2021 |
| Inocybe nothomixtilis | Esteve-Rav., Bandini & V. González | 2018 |
| Inocybe nothopus | Matheny & Bougher | 2017 |
| Inocybe nucleata | Murrill | 1945 |
| Inocybe nuda | Velen. | 1920 |
| Inocybe nudiuscula | Matheny & Bougher | 2017 |
| Inocybe numerosigibba | Takah. Kobay. | 2002 |
| Inocybe oblectabilis (Forse vezelkop) | (Britzelm.) Sacc. | 1895 |
| Inocybe oblonga | T. Bau & Y.G. Fan | 2018 |
| Inocybe oblongispora | Britzelm. | 1895 |
| Inocybe obscura | Gillet | 1876 |
| Inocybe obscurella | Carteret & Reumaux | 2012 |
| Inocybe obscurobadia (Bruine pelargoniumvezelkop) | (J. Favre) Grund & D.E. Stuntz | 1977 |
| Inocybe obscuromellea | Poirier | 2002 |
| Inocybe observabilis | (Britzelm.) Sacc. | 1895 |
| Inocybe obtusiuscula | Kühner | 1988 |
| Inocybe occulta | Esteve-Rav., Bandini, B. Oertel & G. Moreno | 2018 |
| Inocybe ochracea | Stangl | 1979 |
| Inocybe ochraceolutea | Carteret & Reumaux | 2017 |
| Inocybe ochraceomarginata | Kauffman | 1924 |
| Inocybe ochraceoscabra | G.F. Atk. | 1918 |
| Inocybe ochraceoviolascens | (Britzelm.) Sacc. & P. Syd. | 1899 |
| Inocybe ochroalba (Bleekgele vezelkop) | Bruyl. | 1970 |
| Inocybe ochrofulva | Malençon | 1970 |
| Inocybe ochroleuca | J. Favre | 1955 |
| Inocybe ochrorufa | Sarwal | 1983 |
| Inocybe odora | Velen. | 1939 |
| Inocybe oehrensii | Garrido & E. Horak | 1988 |
| Inocybe oetziana | Bandini & B. Oertel | 2021 |
| Inocybe ohenojae | Vauras & E. Larss. | 2014 |
| Inocybe olgae | Velen. | 1920 |
| Inocybe olida | Maire | 1933 |
| Inocybe olidissima | (Ripart bis) Poirier & Reumaux | 1990 |
| Inocybe olivaceobrunnea (Olijfbruine vezelkop) | J. Favre ex Kuyper | 1986 |
| Inocybe olivaceohinnulea | Matheny & Bougher | 2017 |
| Inocybe olivaceonigra | (E. Horak) Garrido | 1988 |
| Inocybe olivaceoviridis | E. Ludw. | 2017 |
| Inocybe olorinata | E. Horak | 1979 |
| Inocybe olpidiocystis | G.F. Atk. | 1918 |
| Inocybe olympiana | A.H. Sm. | 1939 |
| Inocybe oreadoides | Carteret | 2000 |
| Inocybe oreina | J. Favre | 1955 |
| Inocybe orionis | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe ornata | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe ornatipes | Matheny & Bougher | 2017 |
| Inocybe ortegae | Esteve-Rav. | 2001 |
| Inocybe othini | Bandini & B. Oertel | 2022 |
| Inocybe ovatocystis | Boursier & Kühner | 1928 |
| Inocybe ovilla | Bandini & B. Oertel | 2022 |
| Inocybe ovispora | E. Horak | 2018 |
| Inocybe ovoidea | Takah. Kobay. | 2003 |
| Inocybe ovoideicystis | Métrod | 1956 |
| Inocybe ozeensis | Kobayasi | 1952 |
| Inocybe pachycaulis | E. Ludw. | 2017 |
| Inocybe pachycreas | R. Heim & Romagn. | 1931 |
| Inocybe pachydermica | Takah. Kobay. | 2002 |
| Inocybe pachypleura | Takah. Kobay. | 2002 |
| Inocybe pahangi | (Corner & E. Horak) Garrido | 1988 |
| Inocybe paleoveneta | (Bizio & A. Castellan) Esteve-Rav. & Pancorbo | 2022 |
| Inocybe pallescens | Velen. | 1920 |
| Inocybe pallida | Velen. | 1920 |
| Inocybe pallidicremea | Grund & D.E. Stuntz | 1977 |
| Inocybe pallidiflavipes | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe pallidipes | Ellis & Everh. | 1889 |
| Inocybe pallidobrunnea | Kauffman | 1924 |
| Inocybe pallidolutea | Carteret & Reumaux | 2017 |
| Inocybe pallidospora | Beller & Bon | 1997 |
| Inocybe paludicola | Kokkonen & Vauras | 2012 |
| Inocybe paludinella (Valse satijnvezelkop) | (Peck) Sacc. | 1887 |
| Inocybe paludosella | G.F. Atk. | 1918 |
| Inocybe papilionacea | E. Ludw. | 2017 |
| Inocybe papillata | (E. Horak) Garrido | 1988 |
| Inocybe papilliformis | C.K. Pradeep & Matheny | 2016 |
| Inocybe paracerasphora | (E. Horak) Garrido | 1988 |
| Inocybe paradoxa | R. Heim | 1934 |
| Inocybe paragiacomi | E. Larss., C.L. Cripps & Vauras | 2019 |
| Inocybe paralanuginosa | Pegler | 1983 |
| Inocybe pararubens | Carteret & Reumaux | 2012 |
| Inocybe parcecoacta | Grund & D.E. Stuntz | 1977 |
| Inocybe parcesquamulosa | Nespiak | 1990 |
| Inocybe pargasensis (Tengere knolvezelkop) | Vauras | 1997 |
| Inocybe parvibulbosa | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe parvicystis | Rodr.-Campo & Esteve-Rav. | 2017 |
| Inocybe parvifulva | Matheny & Bougher | 2017 |
| Inocybe parvipileus | E. Ludw. | 2017 |
| Inocybe parvispora | Murrill | 1945 |
| Inocybe parvisquamulosa | C.K. Pradeep & Matheny | 2016 |
| Inocybe patibilis | Reumaux | 1988 |
| Inocybe paucicolor | Matheny & Bougher | 2017 |
| Inocybe paucicystidiosa | (Bon) Franchi & M. Marchetti | 2008 |
| Inocybe paucigibba | Singer | 1965 |
| Inocybe pedemontana | Alessio | 1980 |
| Inocybe pedicellata | Velen. | 1920 |
| Inocybe pedunculata | Velen. | 1920 |
| Inocybe pegleri | Sarwal | 1983 |
| Inocybe pelargonium (Gele pelargoniumvezelkop) | Kühner | 1955 |
| Inocybe perchtana | Bandini & B. Oertel | 2020 |
| Inocybe perlucida | Bandini & E. Ferrari | 2020 |
| Inocybe permucida | Grund & D.E. Stuntz | 1983 |
| Inocybe pernivosa | (Murrill) Singer | 1951 |
| Inocybe peronatella | J. Favre | 1960 |
| Inocybe perpusilla | Velen. | 1920 |
| Inocybe persicinipes | Matheny & Bougher | 2017 |
| Inocybe personata | Kühner | 1955 |
| Inocybe pertomentosa | Murrill | 1945 |
| Inocybe petchii | Boedijn | 1951 |
| Inocybe petiginosa (Poedersteeltje) | (Fr.) Gillet | 1876 |
| Inocybe petroselinolens | Carteret & Reumaux | 2012 |
| Inocybe phaeocephala | (Bull.) Sacc. | 1887 |
| Inocybe phaeocystidiosa | Esteve-Rav., G. Moreno & Bon | 1987 |
| Inocybe phaeodisca (Tweekleurige vezelkop) | Kühner | 1955 |
| Inocybe phaeodiscoides | T. Bau & Y.G. Fan | 2018 |
| Inocybe phaeoleuca | Kühner | 1953 |
| Inocybe phaeoleuca | Kühner | 1955 |
| Inocybe phaeosquarrosa | E. Horak | 1978 |
| Inocybe pholiotinoides | Romagn. | 1979 |
| Inocybe picetorum | Velen. | 1920 |
| Inocybe picrosma | D.E. Stuntz | 1950 |
| Inocybe pileosulcata | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe pingala | K.P.D. Latha & Manim. | 2017 |
| Inocybe pintureaui | Duchemin | 1979 |
| Inocybe pipilikae | Bandini & B. Oertel | 2021 |
| Inocybe piricystis | J. Favre | 1955 |
| Inocybe plocamophora | Singer, I.J.A. Aguiar & Ivory | 1983 |
| Inocybe plumosa | (Bolton) Quél. | 1872 |
| Inocybe plumosa | Kalchbr. | 1874 |
| Inocybe pluppiana | Bandini, B. Oertel & U. Eberh. | 2020 |
| Inocybe plurabellae | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe pluteoides | Höhn. | 1907 |
| Inocybe pluvialis | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe pluviosilvestris | Matheny & Bougher | 2017 |
| Inocybe poculata | E. Horak | 2018 |
| Inocybe pollicaris | P. Karst. | 1883 |
| Inocybe polycystidiata | Kobayasi | 1952 |
| Inocybe polytrichi-norvegici | Kühner | 1988 |
| Inocybe populea | Takah. Kobay. & Courtec. | 2000 |
| Inocybe porcorum | Vauras & Kokkonen | 2012 |
| Inocybe posterula (Vergelende vezelkop) | (Britzelm.) Sacc. | 1887 |
| Inocybe poujolii | R. Heim | 1931 |
| Inocybe praecox | Kropp, Matheny & Nanagy. | 2010 |
| Inocybe prae-echinulata | Murrill | 1941 |
| Inocybe praefarinacea | (Murrill) Singer | 1951 |
| Inocybe praenodulosa | Murrill | 1941 |
| Inocybe praenucleata | Murrill | 1945 |
| Inocybe praepostera | (Britzelm.) Sacc. | 1887 |
| Inocybe praetermissa | P. Karst. | 1884 |
| Inocybe praetervisa (Gewone knolvezelkop) | Quél. | 1883 |
| Inocybe praetervisoides | Esteve-Rav., G. Moreno & Olariaga | 2016 |
| Inocybe prisca | Bandini & B. Oertel | 2021 |
| Inocybe procera | E. Horak | 1979 |
| Inocybe prominens | Kauffman | 1924 |
| Inocybe proteica | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe proximella | P. Karst. | 1883 |
| Inocybe pruinosa (Bleke zandvezelkop) | R. Heim | 1931 |
| Inocybe psammobrunnea | Bon | 1990 |
| Inocybe pseudoabjecta | E. Ludw. | 2017 |
| Inocybe pseudoasterospora (Valse sterspoorvezelkop) | Kühner & Boursier | 1932 |
| Inocybe pseudobrunnea | Alessio | 1987 |
| Inocybe pseudoconfusa | Métrod | 1956 |
| Inocybe pseudodestricta (Glanzende spleetvezelkop) | Stangl & J. Veselský | 1973 |
| Inocybe pseudoflocculosa | Kühner | 1988 |
| Inocybe pseudofuscidula | E. Ludw. | 2017 |
| Inocybe pseudograta | Alessio | 1983 |
| Inocybe pseudogriseolilacina | G.Y. Zheng & Z.S. Bi | 1997 |
| Inocybe pseudohaemacta | Bon & Courtec. | 1985 |
| Inocybe pseudohiulca (Gevlekte knolvezelkop) | Kühner | 1933 |
| Inocybe pseudomixtilis | (Britzelm.) Sacc. | 1895 |
| Inocybe pseudonobilis | Reumaux | 2000 |
| Inocybe pseudonobilis | Reumaux | 2001 |
| Inocybe pseudoreducta (Sombere knolvezelkop) | Stangl & Glowinski | 1981 |
| Inocybe pseudorhacodes | Takah. Kobay. & Courtec. | 1993 |
| Inocybe pseudorubens | Carteret & Reumaux | 2001 |
| Inocybe pseudoscabella | (Britzelm.) Lapl. | 1894 |
| Inocybe pseudoscabelliformis | Carteret & Reumaux | 2017 |
| Inocybe pseudotarda | Moënne-Locc. & Poirier | 2012 |
| Inocybe pseudoteraturgus | Vauras & Kokkonen | 2012 |
| Inocybe pseudoumbrina | Stangl | 1975 |
| Inocybe pulchella | Matheny, Aime & T.W. Henkel | 2003 |
| Inocybe pullata | A. Pearson ex Pegler | 1996 |
| Inocybe punctata | (Fr.) P. Karst. | 1879 |
| Inocybe punctatosquamosa | (E. Horak) Garrido | 1988 |
| Inocybe purpureobadia | Esteve-Rav. & A. Caball. | 2009 |
| Inocybe purpureoflavida | K.B. Vrinda & C.K. Pradeep | 1997 |
| Inocybe pusillima | (Corner & E. Horak) Garrido | 1988 |
| Inocybe pusillula | Carteret & Reumaux | 2017 |
| Inocybe pusina | F.H. Møller | 1945 |
| Inocybe pusio (Paarssteelspleetvezelkop) | P. Karst. | 1889 |
| Inocybe putilla | Bres. | 1887 |
| Inocybe pygmaeiformis | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe pyriformis | Takah. Kobay. & S. Kurogi | 2009 |
| Inocybe pyriodora | (Pers.) P. Kumm. | 1871 |
| Inocybe pyrotricha | D.E. Stuntz | 1950 |
| Inocybe queletii (Voorjaarsvezelkop) | Konrad | 1929 |
| Inocybe quercetorum | Reumaux | 2001 |
| Inocybe quercicola | A. Naseer, M.B. Khan & F. Aqdus | 2021 |
| Inocybe radiata | Peck | 1895 |
| Inocybe rainierensis | D.E. Stuntz | 1950 |
| Inocybe ranunculiformis | Sand.-Leiva, Caiafa & M.E. Sm. | 2021 |
| Inocybe rasiana | Sacc. & Trotter | 1920 |
| Inocybe ravaensis | Kalamees & Shchukin | 1985 |
| Inocybe ravenelii | Massee | 1904 |
| Inocybe redolens | Matheny, Bougher & G.M. Gates | 2012 |
| Inocybe rekhankitha | K.P.D. Latha & Manim. | 2017 |
| Inocybe relicina | (Fr.) Quél. | 1888 |
| Inocybe rennyi (Roodbruine knobbelvezelkop) | (Berk. & Broome) Sacc. | 1887 |
| Inocybe repanda | (Bull.) Quél. | 1872 |
| Inocybe reticulata | Cout. | 1925 |
| Inocybe retipes | G.F. Atk. | 1918 |
| Inocybe rhodella | Matheny, Aime & M.E. Sm. | 2012 |
| Inocybe rhombispora | Massee | 1904 |
| Inocybe rickenii | Killerm. | 1925 |
| Inocybe rigidipes | Peck | 1898 |
| Inocybe rimosa (Geelbruine spleetvezelkop) | Britzelm. | 1883 |
| Inocybe rimosobispora | Bizio, Esteve-Rav. & Contu | 2005 |
| Inocybe rimulosa | C.K. Pradeep & Matheny | 2016 |
| Inocybe rivierana | Bandini & B. Oertel | 2021 |
| Inocybe rivularis | Jacobsson & Vauras | 1990 |
| Inocybe robiginosa | E. Ludw. | 2017 |
| Inocybe rocabrunae | Esteve-Rav. & Vila | 2002 |
| Inocybe rohlenae | Velen. | 1920 |
| Inocybe romana | Lonati | 1985 |
| Inocybe roseascens | Bizio, Bahram, Tedersoo, Orzes & Saitta | 2018 |
| Inocybe roseifolia | Murrill | 1945 |
| Inocybe roseipes | Malençon | 1970 |
| Inocybe rosella | Velen. | 1920 |
| Inocybe roseola | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe rostrata | Velen. | 1920 |
| Inocybe rubellipes | G.F. Atk. | 1918 |
| Inocybe rubens | (R. Heim) Huijsman | 1953 |
| Inocybe rubidofracta | E. Ferrari | 2010 |
| Inocybe rubrobrunnea | K.P.D. Latha & Manim. | 2017 |
| Inocybe rubrolaesa | Secr. ex Gillet | 1876 |
| Inocybe rufa | (Pat.) Sartory & J. Meier | 1922 |
| Inocybe rufescens | Matheny & Bougher | 2017 |
| Inocybe rufidula | Kauffman | 1924 |
| Inocybe rufoalba | Sacc. | 1887 |
| Inocybe rufobadia | Matheny & Bougher | 2017 |
| Inocybe rufobrunnea | J. Favre | 1955 |
| Inocybe rufoflavipes | Matheny & Bougher | 2017 |
| Inocybe rufofusca | (J. Favre) Bon | 1997 |
| Inocybe rufolutea | J. Favre | 1955 |
| Inocybe rufotacta | Schwöbel & Stangl | 1982 |
| Inocybe rufula | Malençon | 1970 |
| Inocybe rufula | Malençon ex Alessio | 1986 |
| Inocybe rufuloides | Bon | 1984 |
| Inocybe rupestris | J. Favre | 1955 |
| Inocybe sabuletorum | (Berk. & M.A. Curtis) Sacc. | 1895 |
| Inocybe sabulicola | Carteret, Réaudin & Reumaux | 2013 |
| Inocybe saliceticola (Valse wilgenvezelkop) | Vauras & Kokkonen | 2008 |
| Inocybe salicis (Wilgenvezelkop) | Kühner | 1955 |
| Inocybe salicis-herbaceae | Kühner | 1988 |
| Inocybe sambucella | G.F. Atk. | 1918 |
| Inocybe sambucina (Witte heidevezelkop) | (Fr.) Quél. | 1872 |
| Inocybe sandrae | Zitzmann | 2002 |
| Inocybe sanguillula | Britzelm. | 1896 |
| Inocybe sanguinolenta | Britzelm. | 1896 |
| Inocybe sapinea | Velen. | 1939 |
| Inocybe saponacea | Kuyper | 1986 |
| Inocybe scabella | P. Kumm. | 1871 |
| Inocybe scabella | Sacc. | 1887 |
| Inocybe scabelliformis | Malençon | 1970 |
| Inocybe scabra | (O.F. Müll.) Quél. | 1880 |
| Inocybe scabriuscula | E. Horak | 1978 |
| Inocybe scissa | (E. Horak) Garrido | 1988 |
| Inocybe sclerotiicola | R. Heim & Gilles | 1969 |
| Inocybe scobifera | E. Horak | 2018 |
| Inocybe scolopacis | Bandini & B. Oertel | 2021 |
| Inocybe scoriae | E. Ludw. | 2017 |
| Inocybe sejuncta | Matheny, Bougher & M.D. Barrett | 2017 |
| Inocybe semifulva | Grund & D.E. Stuntz | 1981 |
| Inocybe semilutescens | Singer | 1969 |
| Inocybe senkawaensis | Kobayasi | 1952 |
| Inocybe sericella | Takah. Kobay. & S. Onishi | 2010 |
| Inocybe sericeopoda | Furrer-Ziogas | 1995 |
| Inocybe serotina (Grote duinvezelkop) | Peck | 1904 |
| Inocybe serpentinocystis | Matheny & Watling | 2004 |
| Inocybe serrata | Cleland | 1933 |
| Inocybe serratoides | Matheny & Bougher | 2017 |
| Inocybe servata | (Britzelm.) Lapl. | 1894 |
| Inocybe shoreae | (E. Horak & Bas) Garrido | 1988 |
| Inocybe sierraensis | Kropp & Matheny | 2004 |
| Inocybe silvae-herbaceae | Kokkonen & Vauras | 2012 |
| Inocybe silvana | K.P.D. Latha & Manim. | 2017 |
| Inocybe similis (Grootsporige vezelkop) | Hruby | 1930 |
| Inocybe sindonia (Blonde vezelkop) | (Fr.) P. Karst. | 1879 |
| Inocybe sinuospora | Matheny & Bougher | 2012 |
| Inocybe siskiyouensis | Kauffman | 1930 |
| Inocybe sitibunda | Bandini, B. Oertel & U. Eberh. | 2021 |
| Inocybe snigdha | K.P.D. Latha & Manim. | 2017 |
| Inocybe solida | Velen. | 1939 |
| Inocybe solitaria | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe soluta (Bleeksporige vezelkop) | Velen. | 1920 |
| Inocybe somae | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe sordida | Rick | 1920 |
| Inocybe spadicea | Matheny & Bougher | 2017 |
| Inocybe specialis | (Britzelm.) Sacc. & Traverso | 1910 |
| Inocybe sphaerospora | Kobayasi | 1952 |
| Inocybe sphagnophila | Bandini & B. Oertel | 2017 |
| Inocybe spiniformis | Matheny & Bougher | 2017 |
| Inocybe spinosae | Velen. | 1939 |
| Inocybe spinulifera | E. Horak | 2018 |
| Inocybe splendens (Aarddrager) | R. Heim | 1932 |
| Inocybe splendentoides | Bon | 1990 |
| Inocybe splendidissima | Carteret & Reumaux | 2001 |
| Inocybe squalida | Kaufholz-Couture | 2021 |
| Inocybe squamigera | (Britzelm.) Sacc. | 1887 |
| Inocybe squamosa | Bres. | 1902 |
| Inocybe squamosodisca | Peck | 1904 |
| Inocybe squamulosa | Kobayasi | 1952 |
| Inocybe squarrosa (Dwergvezelkop) | Rea | 1916 |
| Inocybe squarrosoamethystina | Singer | 1938 |
| Inocybe squarrosofulva | S.N. Li, Y.G. Fan & Z.H. Chen | 2021 |
| Inocybe squarrosolutea | (Corner & E. Horak) Garrido | 1988 |
| Inocybe squarrosula | (P. Karst.) Sacc. | 1895 |
| Inocybe stangliana (Rondsporige vezelkop) | Kuyper | 1986 |
| Inocybe staurospora | (E. Horak) Garrido | 1988 |
| Inocybe stellata | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe stellatospora (Valse wolvezelkop) | (Peck) Massee | 1904 |
| Inocybe stellifera | Arnolds | 2015 |
| Inocybe stenospora | Stangl & Bresinsky | 1983 |
| Inocybe straminea | (E. Horak) Garrido | 1988 |
| Inocybe straminipes | Romagn. | 1979 |
| Inocybe striatiformis | Murrill | 1945 |
| Inocybe striatorimosa | P.D. Orton | 1960 |
| Inocybe striatula | (Cleland) Grgur. | 1997 |
| Inocybe strickeriana | Bandini, Anja Schneid. & M. Scholler | 2018 |
| Inocybe strigosa | (Peck) Peck | 1887 |
| Inocybe striipes | Kühner | 1988 |
| Inocybe strobilacea | E. Horak | 2018 |
| Inocybe strobilomyces | E. Horak | 1978 |
| Inocybe stuntzii | Grund | 1975 |
| Inocybe suaveolens | D.E. Stuntz | 1950 |
| Inocybe subaemula | (Britzelm.) Sacc. | 1895 |
| Inocybe subalbidodisca | Stangl & J. Veselský | 1975 |
| Inocybe subangustifolia | Matheny, Bougher & Halling | 2017 |
| Inocybe subargentea | Singer | 1938 |
| Inocybe subasterospora | Cleland & Cheel | 1918 |
| Inocybe subbrunnea | Kühner | 1955 |
| Inocybe subcarpta (Bruine zandvezelkop) | Kühner & Boursier | 1932 |
| Inocybe subclavata | (E. Horak) Garrido | 1988 |
| Inocybe subconnexa | Murrill | 1945 |
| Inocybe subdecipiens | Bres. | 1934 |
| Inocybe subdecipiens | Bres. ex Bellù, Bizio & M. Marchetti | 1998 |
| Inocybe subdestricta | Kauffman | 1924 |
| Inocybe subeutheloides | Murrill | 1941 |
| Inocybe subexilis | (Peck) Sacc. | 1887 |
| Inocybe subferruginea | Matheny & Bougher | 2017 |
| Inocybe subfibrosoides | Singer | 1953 |
| Inocybe subflocculosa | Bon | 1997 |
| Inocybe subflocculosa | Bon | 1997 |
| Inocybe subflocculosa | Bon | 1997 |
| Inocybe subfulva | Peck | 1888 |
| Inocybe subfulviformis | Murrill | 1945 |
| Inocybe subfuscocinnamomea | Singer | 1954 |
| Inocybe subgeophylla | Henn. | 1899 |
| Inocybe subgeophyllomorpha | Singer | 1954 |
| Inocybe subgiacomi | C.L. Cripps, Vauras & E. Larss. | 2019 |
| Inocybe subgigacystis | Singer | 1954 |
| Inocybe subgranulosa | P. Karst. | 1892 |
| Inocybe subhirtella | Bon | 1984 |
| Inocybe subhygrophana | E. Ludw. & W. Diekow | 2017 |
| Inocybe subignobilis | (Britzelm.) Lapl. | 1894 |
| Inocybe subinsequens | (Britzelm.) Sacc. | 1887 |
| Inocybe subionipes | Deïana & Carteret | 2002 |
| Inocybe sublanuginosa | Rick | 1938 |
| Inocybe sublilacina | Matheny & A. Voitk | 2018 |
| Inocybe sublimbata | (Fr.) Quél. | 1898 |
| Inocybe sublongipes | Murrill | 1945 |
| Inocybe submaculipes | J. Favre | 1960 |
| Inocybe submicrospora | Velen. | 1947 |
| Inocybe submuricellata | G.F. Atk. | 1918 |
| Inocybe subnodulosa | Murrill | 1941 |
| Inocybe subnudipes (Gladsteelvezelkop) | Kühner | 1955 |
| Inocybe subochracea | (Peck) Earle | 1903 |
| Inocybe suboreina | Moënne-Locc., Poirier & Reumaux | 1990 |
| Inocybe subornata | (Britzelm.) Sacc. | 1895 |
| Inocybe subpaleacea | Kühner | 1988 |
| Inocybe subpelargonium | Beller | 1982 |
| Inocybe subporospora (Roodbruine zandvezelkop) | Kuyper | 1986 |
| Inocybe subpraetervisa | Carteret | 2017 |
| Inocybe subprominens | Murrill | 1941 |
| Inocybe subpulverulenta | Matheny, Bougher & Lepp | 2017 |
| Inocybe subradiata | Murrill | 1945 |
| Inocybe subretipes | Singer | 1954 |
| Inocybe subrimosa | (P. Karst.) Sacc. | 1891 |
| Inocybe subroindica | Banning & Peck | 1891 |
| Inocybe subrubens | Carteret & Reumaux | 2012 |
| Inocybe subscabella | Carteret & Reumaux | 2017 |
| Inocybe substellata | Kühner | 1988 |
| Inocybe substraminea | Alessio | 1980 |
| Inocybe subtilis | Takah. Kobay. | 2002 |
| Inocybe subtomentosa | Peck | 1897 |
| Inocybe subtrivialis | Esteve-Rav., M. Villarreal & Heykoop | 1997 |
| Inocybe subvatricosa | Rick | 1938 |
| Inocybe subvatricosa | S. Imai | 1941 |
| Inocybe subvirgata | Reumaux | 2001 |
| Inocybe subvolvata | Hongo | 1963 |
| Inocybe suecica | Vauras & E. Larss. | 2016 |
| Inocybe sulfovirescens | Poirier | 2002 |
| Inocybe suryana | Bandini & B. Oertel | 2022 |
| Inocybe sylvicola | Matheny, Bougher & G.M. Gates | 2017 |
| Inocybe tabacina | Furrer-Ziogas | 1952 |
| Inocybe taedophila | Murrill | 1945 |
| Inocybe tahquamenonensis | D.E. Stuntz | 1954 |
| Inocybe tarda | Kühner | 1955 |
| Inocybe tasmanica | Matheny & Bougher | 2017 |
| Inocybe tatrae | Nespiak | 1990 |
| Inocybe tauensis | Kropp & Albee-Scott | 2010 |
| Inocybe taxocystis | Singer | 1986 |
| Inocybe taxocystis | (J. Favre & E. Horak) Senn-Irlet | 1992 |
| Inocybe tenax | Matheny & Bougher | 2017 |
| Inocybe tenebricoides | Kühner | 1988 |
| Inocybe tenebrosa (Zwartvoetvezelkop) | Quél. | 1885 |
| Inocybe tenerella | J. Favre | 1960 |
| Inocybe tenerella | Kühner | 1989 |
| Inocybe tenuimarginata | (Britzelm.) Sacc. | 1895 |
| Inocybe tenuis | Matheny & Bougher | 2017 |
| Inocybe tequendamae | Singer | 1963 |
| Inocybe teraturgus | M.M. Moser | 1992 |
| Inocybe terrifera | Kühner | 1953 |
| Inocybe terrifera | Kühner | 1955 |
| Inocybe tertia | Matheny & Bougher | 2017 |
| Inocybe tetragonospora | Kühner | 1988 |
| Inocybe texensis | Thiers | 1960 |
| Inocybe thailandica | E. Horak, Matheny & Desjardin | 2015 |
| Inocybe tiburtina | Bandini & G. Bandini | 2021 |
| Inocybe tigrina | R. Heim | 1931 |
| Inocybe tigrinella | Carteret & Reumaux | 2012 |
| Inocybe tiliae | Franchi, M. Marchetti & Papetti | 2016 |
| Inocybe timpetuana | Bandini & B. Oertel | 2021 |
| Inocybe titibuensis | Kobayasi | 1952 |
| Inocybe tjallingiorum (Kastanjebruine vezelkop) | Kuyper | 1986 |
| Inocybe tomentella | Sacc. | 1887 |
| Inocybe tomentipes | Matheny & Bougher | 2017 |
| Inocybe tomentosa | Quél. | 1888 |
| Inocybe tonalei | Bizio & C. Rossi | 2009 |
| Inocybe torresiae | Matheny, Bougher & M.D. Barrett | 2012 |
| Inocybe trachysperma | Matheny & Bougher | 2017 |
| Inocybe transitoria | (Britzelm.) Sacc. | 1887 |
| Inocybe trechispora | (Berk.) P. Karst. | 1879 |
| Inocybe treneri | Bres. | 1926 |
| Inocybe tricolor | Kühner | 1955 |
| Inocybe trinii | (Weinm.) Quél. | 1872 |
| Inocybe trinii | Pat. | 1883 |
| Inocybe tristis | Hruby | 1930 |
| Inocybe tubarioides | G.F. Atk. | 1918 |
| Inocybe tuberosa | Clem. | 1893 |
| Inocybe tulearensis | L.M. Dufour & H. Poiss. | 1927 |
| Inocybe tumidula | Matheny & Bougher | 2017 |
| Inocybe tundrae | E. Ludw. | 2017 |
| Inocybe turbata | E. Horak | 2018 |
| Inocybe turfosa | Velen. | 1939 |
| Inocybe uliginosa | Velen. | 1920 |
| Inocybe umbonata | Quél. | 1877 |
| Inocybe umboninota | (Peck) Peck | 1885 |
| Inocybe umbratica | Quél. | 1884 |
| Inocybe umbrinescens | Murrill | 1945 |
| Inocybe umbrinodisca | Kühner | 1988 |
| Inocybe umbrosa | E. Horak | 1978 |
| Inocybe undinea | Bandini, P.-A. Moreau & B. Oertel | 2019 |
| Inocybe undulatospora (Geelbruine knobbelspoorvezelkop) | Kuyper | 1989 |
| Inocybe urbana | Alessio | 1980 |
| Inocybe urbana | Alessio ex Franchi, M. Marchetti & Papetti | 2015 |
| Inocybe urceolicystis | Stangl & Vauras | 1988 |
| Inocybe ursinella | M. Lange | 1957 |
| Inocybe vaccina (Oranjebruine vezelkop) | Kühner | 1955 |
| Inocybe vagata | Matheny & Bougher | 2017 |
| Inocybe valida | Malençon | 1970 |
| Inocybe valida | Malençon | 1979 |
| Inocybe variabillima | Speg. | 1898 |
| Inocybe variispora | Fern. Sas. | 2002 |
| Inocybe velata | Franchi & M. Marchetti | 2008 |
| Inocybe velatipusio | Esteve-Rav. & Pancorbo | 2022 |
| Inocybe velenovskyi | Boursier & Kühner | 1928 |
| Inocybe velenovskyi | Hruby | 1930 |
| Inocybe venerabilis | Bandini, B. Oertel & U. Eberh. | 2022 |
| Inocybe ventricosa | G.F. Atk. | 1918 |
| Inocybe venustissima | Bandini & B. Oertel | 2018 |
| Inocybe verbanensis | Bon & E. Ferrari | 2006 |
| Inocybe vestalis | Bandini, Weholt & B. Oertel | 2020 |
| Inocybe vestipedes | Matheny & Bougher | 2017 |
| Inocybe vialis | Murrill | 1945 |
| Inocybe vicina | E. Horak | 2018 |
| Inocybe villosa | Bandini, B. Oertel & U. Eberh. | 2018 |
| Inocybe violacea | Massee | 1899 |
| Inocybe violaceifolia | Peck | 1888 |
| Inocybe violaceoalbipes | G.F. Atk. | 1918 |
| Inocybe violaceocaulis | Matheny & Bougher | 2005 |
| Inocybe violaceolamellata | Rick | 1930 |
| Inocybe violaceovelata | E. Horak | 1979 |
| Inocybe violascens | Quél. | 1886 |
| Inocybe violeipes | E. Horak | 1979 |
| Inocybe viraktha | K.P.D. Latha & Manim. | 2017 |
| Inocybe virgata | G.F. Atk. | 1918 |
| Inocybe viridiumbonata | Pegler | 1983 |
| Inocybe virosa | K.B. Vrinda, C.K. Pradeep, A.V. Joseph & T.K. Abraham | 1996 |
| Inocybe viscata | (E. Horak) Garrido | 1988 |
| Inocybe viscidula | R. Heim | 1931 |
| Inocybe viscosissima | (Fr.) P. Karst. | 1879 |
| Inocybe vittata | Matheny, Bougher & M. Ryberg | 2017 |
| Inocybe volvata | D.E. Stuntz | 1947 |
| Inocybe vulpina | Takah. Kobay. | 2002 |
| Inocybe vulpinella (Kleine duinvezelkop) | Bruyl. | 1970 |
| Inocybe wayanadensis | K.P.D. Latha & Manim. | 2016 |
| Inocybe weberi | Murrill | 1945 |
| Inocybe whitei (Blozende dennenvezelkop) | (Berk. & Broome) Sacc. | 1887 |
| Inocybe woglindeana | Bandini, Vauras & Weholt | 2020 |
| Inocybe xanthocystis | Matheny & Bougher | 2017 |
| Inocybe xantholeuca | Kuyper | 1986 |
| Inocybe xanthomela | J.E. Lange | 1938 |
| Inocybe xanthomelas (Vale knolvezelkop) | Boursier & Kühner | 1933 |
| Inocybe xanthophylla | Bon | 1983 |
| Inocybe xerophytica | Pegler | 1983 |
| Inocybe zangherii | Bres. | 1930 |
| Inocybe zonatipes | E. Horak | 1979 |