Family 48. Polypodiaceae J.Presl & C.Presl, Delic. Prag.: 159 (1822). Grammitidaceae Newm., Hist. Brit. Ferns: 7 (1840). Gymnogrammitidaceae Ching in Acta Phytotax. Sin. 11: 12 (1966). Loxogrammaceae Ching ex Pic.Serm. in Webbia 29: 11 (1975). Drynariaceae Ching in Acta Phytotax. Sin. 16: 19 (1978). Platyceriaceae Ching in Acta Phytotax. Sin. 16: 18 (1978). Pleurisoriopsidaceae Kurita & Ikebe ex Ching in Acta Phytotax. Sin. 16: (1978). 50–80 genera (64 tentatively accepted here). References: Janssen & Schneider (2005), Kreier et al. (2008), Labiak et al. (2010a, b), Otto et al. (2009), Parris (2007), Ranker (2004), Schneider et al. (2004a, c, 2006a, b, 2008, 2010), Smith et al. (2006b), Wang et al. (2010a, b).

Published as part of Christenhusz, Maarten J. M., Zhang, Xian-Chun & Schneider, Harald, 2011, A linear sequence of extant families and genera of lycophytes and ferns, pp. 7-54 in Phytotaxa 19 on page 18, DOI: 10.11646/phytotaxa.19.1.2, http://zenodo.org/record/4893995