Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843) Subclass Commelinidae Takht. (1967) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820) Superorder Pontederianae Takht. ex Reveal (1992) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820) Order Philydrales Dumort. (1829) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820) Family Philydraceae Link (1821), nom. cons. - Philydrum family Genus Helmholtzia F.Muell. (1866)