Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843) Subclass Liliidae J.H.Schaffn. (1911) see Order Liliales Perleb (1826) Superorder Lilianae Takht. (1967) - monocots Order Melanthiales R.Dahlgren ex Reveal (1992) see Order Liliales Perleb (1826) Family Tofieldiaceae Takht. (1995) Genus Triantha see Genus Tofieldia Huds. (1778)