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"
             Realm Riboviria
               Family Luteoviridae [monophyletic?]
                 Genus Enamovirus
                   1 Alfalfa enamovirus 1
                   2 Citrus vein enation virus
                   3 Grapevine enamovirus 1
                   4 Pea enation mosaic virus 1ᵀ