Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superdivision Pteridophytanae Doweld (2001) [monotypic] see Superphylum Pteridophytanae Doweld (2001) Division Monilophyta Cantino & Donoghue Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns Order Salviniales Link (1833) - water ferns Family †Heroleandraceae Krassilov & Golovn. (2000) [monotypic] Genus †Heroleandra Krassilov & Golovn. (2000)