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Fossil Polypodiaceae and their spores

1991
In this publication emphasis is laid on the modern definition of the family Polypodiaceae (Filicales), which is based on an extensive study of Recent material and which is much restricted with respect to older circumscriptions of the family as usually applied by palaeobotanists.
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Polypodium vulgare L. Polypodiaceae

Rainer W. Bussmann   +13 more
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Branched Prothallia in the Polypodiaceae

Bulletin of the Torrey Botanical Club, 1916
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