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 Suborder Dennstaedtiineae Schwartsb. & Hovenkamp (2016) [monotypic] Family Dennstaedtiaceae Lotsy (1909) - dennstaedtioids Genus Hypolepis Bernh. (1805)