Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Plantae Haeckel (1866) - plants
Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
Infrakingdom Streptophyta Caval.-Sm. (1993)
[crown] Clade Phragmoplastophyta Lecointre & Le Guyader 2006 [Hall, McCourt, Delwiche, Mishler & Karol 2020]
[crown] Clade Embryophytaᵀ Engler 1887 [Mishler & Qiu 2020]
Clade Pan-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
Clade Apo-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
[crown] Phylum Tracheophytaᵀ Sinnott ex Caval.-Sm. (1998) - vascular plants
Clade Pan-Euphyllophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
[crown] Clade Euphyllophytaᵀ Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
Clade Pan-Spermatophytaᵀ Cantino & Donoghue 2007 [Cantino, Doyle & Donoghue 2020]
Clade Lignophytaᵀ Crane & Kenrick 1997, nom. cl. inval.
Clade Apo-Spermatophytaᵀ Cantino & Donoghue 2007 [Cantino, Doyle & Donoghue 2020]
[crown] Subphylum Spermatophytinaᵀ Caval.-Sm. (1998) - seed plants
Class Cycadopsida Brongn. (1843)
Subclass Cycadidaeᵀ Pax (1894) [monotypic] - cycads
Order Cycadalesᵀ Pers. ex Bercht. & J.Presl (1820) - cycads
Genus †Bucklandia Sternb. (1825), nom. rej. prop., incertae sedis
1 Family †Crossozamiaceae Doweld (2001)
2 Family Cycadaceaeᵀ Pers. (1807), nom. cons. - Cycas family