Adulterated spleenwort (Asplenium adulterinum) sporangia — ⓘ

Asplenium adulterinum sporangia | Source

family

Aspleniaceae

Spleenworts

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genera:

Asplenium

Description

Ferns with stipes having back-to-back C-shaped vascular bundles that are fused into an X-shape towards the blade. Their sori, found alongside veins, are elongate with laterally attached flap-like linear indusia.

Occurrence map Spleenworts (Aspleniaceae) in Finland — ⓘ

Source

References:

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