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 "Radiatopses" Kenrick & Crane (1997) "lignophytes" Class Spermatopsida "core seed plants" Subclass Magnoliidae Novák ex Takht. (1967) - angiosperms "core angiosperms" "eudicots" "core eudicots" Superorder Asteranae Takht. (1967) "lamiids" Order Gentianales Juss. ex Bercht. & J. Presl (1820) Family Gentianaceaeᵀ Juss. (1789) - gentian family Tribe Exaceae Colla (1835) 1.1 Genus Exacumᵀ L. (1753) 1.2 Genus Cotylanthera Blume (1825) 2 Genus Gentianothamnus Humbert (1937) 3 Genus Ornichia J. Klackenberg (1986) 4 Genus Sebaea Solander ex R. Brown (1810) 5 Genus Tachiadenus Grisebach (1838)