Polypodiaceae J. Presl & C. Presl.
A family of about 65 genera and about 1650 species, cosmopolitan, especially tropical. Here circumscribed to include Grammitidaceae, following PPG I (2016) and Wei & Zhang (2022). Subfamily classification shown in the key follows Wei & Zhang (2022).
Ref: Hennipman, Veldhoen, & Kramer In Kramer & Green (1990); Hirai et al. (2011); Parris In Kramer & Green (1990); PPG I (2016); Smith (1993e) In Flora of North America Editorial Committee (1993b); Smith & Tejero-Díez (2014); Smith et al. (2006a); Smith et al. (2006b); Sundue et al. (2014); Wei & Zhang (2022). Show full citations.