Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             [crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                                 Superphylum Heterokonta Caval.-Sm. (1986)
                                   Phylum Oomycota Arx (1967)
                                     [Subphylum Peronosporomycotina] see Phylum Oomycota Arx (1967)
                                       [Class Peronosporomycetesᵀ M.W. Dick (2001)] see Class Peronosporea
                                         [Genus "Achyla" nom. null.] see Genus Achlya Nees (1823)
                                         ?[Genus Ciliomyces I. Foissner & W. Foissner (1986)] see Genus Ciliatomyces I. Foissner & W. Foissner (1995)
                                         [Subclass "Peronosporomycetidae"ᵀ M.W. Dick (1984)] see Subclass Peronosporomycetidae M.W. Dick (2001)
                                         [Subclass Peronosporomycetidaeᵀ M.W. Dick (2001)] see Subclass Peronosporidae
                                         [Subclass Rhipidiomycetidae] see Class Oomycetes G.Winter (1880)
                                         [Subclass Saprolegniomycetidae Dick et al. (1984)] see Class Oomycetes G.Winter (1880)