Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [Regnum Primigenum J. Hogg, 1860 - primigenal kingdom] see Kingdom Protoctista Hogg, 1860 [Protoctista Hogg, 1860] see Kingdom Protoctista Hogg, 1860 [Protozoa] see Kingdom Protozoa Goldfuss, 1818