organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: [f] 7k;12p;23c;133o;574f;2086g;2s
   Domain Eukaryota Chatton, 1925 - eukaryotes
  Count: [f] 5k;12p;23c;133o;574f;2086g;2s
     Kingdom Chromista Caval.-Sm. (1981) - chromists
    Count: [g] 3p;3c;16o;31f;126g
       Phylum Oomycota Arx (1967)
      Count: [g] 1c;13o;27f;103g
         Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea
        Count: [g] 11o;19f;86g
           Order Leptomitales Kanouse (1927)
          Count: [g] 4f;12g
             Family Leptolegniellaceae M.W. Dick (1971)
            Count: [g] 5g
               Genus Aphanodictyon Huneycutt ex M.W. Dick (1971)
              Count: -
               Genus Aphanomycopsis Scherff. (1925)
              Count: -
               Genus Brevilegniella M.W. Dick (1961)
              Count: -
               Genus Leptolegniella Huneycutt (1952)
              Count: -
               Genus Nematophthora Kerry & D.H. Crump (1980)
              Count: -