Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] [Kingdom Algae L. (1753)] see [unranked] Algae [Phylum Phaeophycota] see Class Phaeophyceae Hansgirg (1886)