Common polypody fern (Polypodium vulgare) at left, and the beech fern (Polypodium phegopteris) at right.

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Common polypody fern (Polypodium vulgare) at left, and the beech fern (Polypodium phegopteris) at right. Chromolithograph from James Britten's "European Ferns" 1879.

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Size: 4728px × 6444px
Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., britten, james