Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         Universe
           (Supercluster) Virgo-Hydra-Centaurus Supercluster
             (Supercluster) Virgo Supercluster
               (Cluster) Local Group
                 (Galaxy) Milky Way Galaxy veter.
                   (Spiral arm) Orion Arm
                     (Region) Local Bubble
                       Local Interstellar Cloud
                         (Planetary system) Solar System
                           (Planet-satellite system) Earth System
                             (Planet) Earth veter.
                               "spheres" (Earth)
                                 (Sphere) Biosphere (Earth) - zone of life
                                   "floristic regions"
                                     Paleotropical Kingdom
                                       African Subkingdom
                                         10 Guineo-Congolian Region
                                         11 Uzambara-Zululand Region
                                         12 Sudano-Zambezian Region
                                         13 Karoo-Namib Region
                                         14 St. Helena and Ascension Region