buckler fern

English
buckler-shaped indusia protecting sori of narrow buckler fern (Dryopteris carthusiana)

Etymology

From the shape of the indusia (membranes) that cover the fern's sori (spores).

Noun

buckler fern (plural buckler ferns)

  1. Certain species of the fern genera Dryopteris, Polystichum, and others.

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References
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