Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843) Subclass Alismatidae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820) Superorder Alismatanae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820) Order Hydrocharitales Dumort. (1829) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820) Family Hydrocharitaceae Juss. (1789), nom. cons. - tape-grass family Genus Appertiella C.D.K. Cook & L. Triest, in J.J. Symoens et al. (1982)