Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Lycopodiobiotina Doweld (2001) Division Lycopodiophyta D.H.Scott (1900) see Phylum Lycopodiophyta D.H.Scott (1900) Class Isoëtopsida Rolle (1884) Order Isoëtales Prantl (1874) Family Isoëtaceae Rchb. (1828) [monotypic] 1 Genus Isoëtes L. (1753)