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nounferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae)
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Definition that contains polypodiaceae
- family cryptogrammataceae one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems
- family dryopteridaceae alternative names for one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems
- polypodium a genus of ferns belonging to the family Polypodiaceae and having rounded naked sori
- doodia in some classification systems placed in family Polypodiaceae; small terrestrial colony-forming ferns of Australasia
- genus woodwardia in some classification systems placed in family Polypodiaceae: chain ferns
- blechnaceae one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; includes genera Blechnum, Doodia, Sadleria, Stenochlaena, and Woodwardia
- genus onoclea one species: sensitive fern; in some classifications included in Polypodiaceae
- genus cryptogramma sometimes placed in family Polypodiaceae or Cryptogrammataceae
- adiantum cosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae
- genus davallia Old World tropical fern; in some classification systems placed directly in family Polypodiaceae