Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Biota "neomura" Domain Eukaryota Chatton, 1925 - eukaryotes "neokaryotes" - mitochondrial eukaryotes "neozoa" Superkingdom Corticata Lankester, 1878 Kingdom Plantae Haeckel (1866) - plants Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants Infrakingdom Streptophyta C. Jeffrey (1967) Superphylum Embryophyta "polysporangiophytes" Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) - vascular plants Subphylum Euphyllophytina Infraphylum "Moniliformopses" Kenrick & Crane, 1997, nom. inval. - monilophytes Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns "core leptosporangiates" Order Polypodiales Link (1833) - polypods "eupolypods" "eupolypods I" Family Polypodiaceae Bercht. & J. Presl (1820) - polygrams 1 Genus Caobangia A.R. Smith & X.C. Zhang (2002) 2 Genus Gymnogrammitis Griffith (1849) 3 Genus Kontumia 4 Genus Pleurosoriopsis Fomin (1930) 5 Subfamily Platycerioideae 6 Subfamily Polypodioideaeᵀ 7 "grammitids"