Phylum [Tracheophyta] Sinnott ex Caval.-Sm. (1998) - vascular plants Subphylum Polypodiophytina Reveal (1996) [monotypic] Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966) Order Polypodiales Link (1833) - cathetogyrates (eupolypods) Suborder Polypodiineae Dumort. (1829) Family Polypodiaceae J.Presl & C.Presl (1822) - polygrams Subfamily Grammitidoideae Parris & Sundue (2016) see [unranked] grammitids Genus Notogrammitis L.R. Parris in L.R. Parris & B.S. Parris (2012)