living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Eumycota see Kingdom Eumycota
           Subdivision Mastigomycotina
             Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea
               Order Saprolegniales
                 Family Saprolegniaceae
                   Genus Achlya Nees (1823)
                   Genus Aphanomyces de Bary (1860)
                   Genus Aplanopsis Höhnk (1952)
                   Genus Dictyuchus Leitg. (1868)
                   Genus Saprolegnia Nees (1823)
                   Genus Sommerstorffia Arnaudov (1923)