Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Kickxellomycota Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
     Class Harpellomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018) [monotypic]
       Order Harpellales Lichtw. & Manier (1978)
         Family Legeriomycetaceae Pouzar (1972)
           01 Genus Austrosmittium Lichtw. & M.C. Williams (1990)
           02 Genus Bactromyces William & Strongman (2012) [monotypic]
           03 Genus Baetimyces L.G. Valle & Santam. (2002) [monotypic]
           04 Genus Bojamyces Longcore (1989)
           05 Genus Capniomyces S.W. Peterson & Lichtw. (1983)
           06 Genus Caudomyces Lichtw., Kobayasi & Indoh (1988)
           07 Genus Coleopteromyces Ferrington, Lichtw. & López-Lastra (1999) [monotypic]
           08 Genus Dacryodiomyces Lichtw. (2011) [monotypic]
           09 Genus Ejectosporus S.W. Peterson, Lichtw. & M.C. Williams (1991) [monotypic]
           10 Genus Ephemerellomyces M.M. White & Lichtw. (2004) [monotypic]
           11 Genus Furculomyces Lichtw. & M.C. Williams (1992)
           12 Genus Gauthieromyces Lichtw. (1983)
           13 Genus Genistelloides S.W. Peterson, Lichtw. & B.W. Horn (1981)
           14 Genus Genistellospora Lichtw. (1972)
           15 Genus Glotzia M. Gauthier ex Manier & Lichtw. (1970)
           16 Genus Graminella L. Léger & M. Gauthier ex Manier (1962)
           17 Genus Laculus William & Strongman (2012) [monotypic]
           18 Genus Lancisporomyces Santam. (1997)
           19 Genus Legerioides M.M. White (1999) [monotypic]
           20 Genus Legeriomyces Pouzar (1972)
           21 Genus Legeriosimilis M.C. Williams, Lichtw., M.M. White & J.K. Misra (1999)
           22 Genus Orphella L. Léger & M. Gauthier (1931)
           23 Genus Pennella Manier ex Manier (1968)
           24 Genus Plecopteromyces Lichtw., Ferrington & López-Lastra (1999)
           25 Genus Pseudoharpella Ferrington, M.M. White & Lichtw. (2003) [monotypic]
           26 Genus Pteromaktron Whisler (1963)
           27 Genus Simuliomyces Lichtw. (1972) [monotypic]
           28 Genus Sinotrichium Juan Wang, S.Q. Xu & Strongman (2010) [monotypic]
           29 Genus Smittium R.A. Poiss. (1937)
           30 Genus Spartiella Tuzet & Manier ex Manier (1968)
           31 Genus Stipella L. Léger & M. Gauthier (1932), nom. illeg. see Genus Stypomyces Doweld (2014)
           32 Genus Stypomyces Doweld (2014)
           33 Genus Tectimyces L.G. Valle & Santam. (2002)
           34 Genus Trichozygospora Lichtw. (1972) [monotypic]
           35 Genus Trifoliellum Strongman & M.M. White (2011) [monotypic]
           36 Genus Zancudomyces Yan Wang, Tretter, Lichtw. & M.M. White (2013) [monotypic]
           37 Genus Zygopolaris S.T. Moss, Lichtw. & Manier (1975)