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 Pospiviroidae
                 Genus Apscaviroid
                   01 Apple dimple fruit viroid
                   02 Apple scar skin viroidᵀ
                   03 Australian grapevine viroid
                   04 Citrus bent leaf viroid
                   05 Citrus dwarfing viroid
                   06 Citrus viroid V
                   07 Citrus viroid VI
                   08 Grapevine yellow speckle viroid 1
                   09 Grapevine yellow speckle viroid 2
                   10 Pear blister canker viroid