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 Burmanniales Mart. (1835) see Order Dioscoreales Mart. (1835)
           Family Thismiaceae J.Agardh (1858), nom. cons.
             1 Genus Oxygyne Schlechter (1906)
             2 Genus Afrothismia (Engl.) Schlechter (1906)
             3 Genus Haplothismia Airy Shaw (1952)
             4 Genus Thismia Griff. (1845)
             5 Genus Geomitra Becc. (1878) see Genus Thismia Griff. (1845)
             6 Genus Scaphiophora Schlechter (1921) see Genus Thismia Griff. (1845)