[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Plantae Haeckel (1866) - plants Division Tracheophyta see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) Subdivision Filicophytina see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval. Class Salvininae see Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) Order Salviniales Link (1833) - water ferns 1 Family Salviniaceae Martinov (1820) - floating ferns 2 Family Azollaceae Wettst. (1903) see Family Salviniaceae Martinov (1820)