plants Haeckel (1866) - plants
   Division Charophyta Migula (1889) - charophyte algae and embryophytes see charophytes
     Subdivision [Streptophytina] see [unranked] Streptophytina Lewis & McCourt (2004)
       Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
         Vascular Plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
           [Ferns]
             Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966)
               Order Polypodiales Link (1833) - cathetogyrates
                 Family Polypodiaceae J.Presl & C.Presl (1822) - polygrams
                   Subfamily Polypodioideae Sweet (1826)
                     grammitids
                       Genus Calymmodon C.Presl (1836)
                       Genus Grammitis Sw. (1801)
                       Genus Lellingeria A.R.Sm. & R.C.Moran
                       Genus Terpsichore A.R.Sm.