Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                             Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                                 Superphylum Heterokonta Caval.-Sm. (1986)
                                   Phylum Oomycota Arx (1967)
                                     Class Peronosporea
                                       Subclass Peronosporidaeᵀ
                                         Order Peronosporalesᵀ
                                           Family Peronosporaceaeᵀ
                                             Genus Phytophthora de Bary (1876)
                                               Phytophthora cactorum (Lebert & Cohn) J.Schröt. (1886)
                                               Phytophthora cinnamomi Rands (1922)
                                               Phytophthora coryptogeen
                                               Phytophthora fragariae Hickman (1940)
                                               Phytophthora infestans (Mont.) de Bary (1876)
                                               Phytophthora megasperma Drechsler (1931)
                                               Phytophthora palmivora (E.J. Butler) E.J. Butler (1919)
                                               Phytophthora parasitica Dastur (1913)
                                               Phytophthora porri Foister (1931)
                                               1 Phytophthora boehmeriae Sawada (1927)
                                               1 Phytophthora ramorum Werres, de Cock & Man, in 't Veld (2001)