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 Piperidae Reveal (1994) A Superorder Chloranthanae Doweld (2001) [monotypic] B Superorder Piperanae Reveal (1994) see Order Piperales Bercht. & J.Presl (1820) C Superorder Aristolochianae Doweld (2001) D Superorder Rafflesianae Thorne ex Reveal (1996) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820) E Superorder Balanophoranae R.Dahlgren ex Reveal (1992) [monotypic] see Order Santalales R.Br. ex Bercht. & J.Presl (1820) F Superorder Eupteleanae Doweld (2001) [monotypic] G Superorder Papaveranae Doweld (2001) [monotypic]