Common woodfern (Dryopteris filix-mas) sporangia — ⓘ

Dryopteris filix-mas sporangia | Source

← order: Polypodiales

family

Dryopteridaceae

Shieldferns

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2 genera:

Description

Ferns with rhizomes with non-clathrate scales and stipes with a ring of many vascular bundles in cross-section. Sori are not linear.

Occurrence map Shieldferns (Dryopteridaceae) in Finland — ⓘ

Source

References:

Smith, A. R., et al. (2006). A classification for extant ferns. Taxon, 55(3), 705-731. doi: 10.2307/25065646