Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superphylum Cycadophytanae Doweld (2001) Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Subphylum Magnoliophytina Reveal (1996) Class Magnoliopsida Brongn. (1843) Subclass Theidae Doweld (2001) Superorder Diapensianae Doweld (2001) Order Diapensiales Engl. & Gilg (1924) [monotypic] see Order Ericales Bercht. & J.Presl (1820) Family Diapensiaceae Lindl. (1836), nom. cons. - Diapensia family Genus Diapensia L. (1753)