Western deer fern (Struthiopteris spicant) growing in Mikkelä, Espoo — ⓘ

Struthiopteris spicant (Mikkelä, Espoo) | Source

← order: Polypodiales

family

Blechnaceae

Chain ferns

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1 genus:

Struthiopteris

Description

Ferns with rhizomes with non-clathrate scales and stipes with a ring of many vascular bundles in cross-section. Sori are linear and sporangia are pedicellate. Spores are reniform and monolete.

Occurrence map Chain ferns (Blechnaceae) in Finland — ⓘ

Source

References:

De Gasper, Andre Luis, et al. (2016). A classification for Blechnaceae (Polypodiales: Polypodiopsida): New genera, resurrected names, and combinations. Phytotaxa, 275(3), 191-227. doi: 10.11646/phytotaxa.275.3.1