Dryopteris Adanson 1763 (fern)

Polypodiopsida - Polypodiales - Polypodiidae

Parent taxon: Dryopteridoideae according to PPG. I 2016

See also Chauhan 1991, Knowlton 1899, Knowlton 1919 and Mabberley 2000

Sister taxon: Polystichum

Subtaxa: Dryopteris arguta Dryopteris civica Dryopteris cladophleboides Dryopteris coloradensis Dryopteris gleichenoides Dryopteris indica Dryopteris kennerlyi Dryopteris kootaniensis Dryopteris lakesii Dryopteris lloydii Dryopteris meeteetseana Dryopteris montanensis Dryopteris nigricans Dryopteris polypodioides Dryopteris scansa Dryopteris serrata Dryopteris seymouriensis Dryopteris weedii Dryopteris xantholithensis

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• Quaternary of Argentina (2 collections), India (1), United States (4: Michigan, Washington)

• Oligocene of Argentina (2)

• Eocene to Oligocene of United States (4: Colorado)

• Eocene of United States (8: Colorado, Washington, Wyoming)

• Paleocene of United States (8: Colorado, Montana, Wyoming)

• Cretaceous of Antarctica (2), Canada (4: British Columbia, Saskatchewan), United States (2: Wyoming)

• Jurassic of China (2), India (1)

Total: 40 collections including 41 occurrences

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Specimen images are retrieved through the ePANDDA API.

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