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]
           ?"viruses"
             ["plant viruses"]
               [[unranked] Potexvirus Group]
                 1 ?"artichoke curly dwarf virus"
                 1 ?"Malva Veinal Necrosis Virus"
                 1 ?"parsley virus"
                 1 ?"potato aucuba mosaic virus"