20 - Blechnaceae
from Division 3 - Polypodiophyta
Summary
Perennial herbs with long or short densely scaly rhizomes. Fronds borne in tufts at the ends of rhizome branches, coriaceous, spirally coiled when young, sparsely scaly, of 2 kinds, 1-pinnate with entire pinnae. Sori linear, continuous either side of pinna midrib. Indusia the same shape as the sori and opening towards the midrib. Plants homosporous. Gametophyte green, surface-living.
Contains 8 genera; cosmopolitan.
Fronds pinnate, not producing young plants vegetatively 1. Blechnum
Fronds 2-pinnatifid, producing young plants vegetatively on distal part 2. Woodwardia
- Type
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- Information
- Flora of Great Britain and Ireland , pp. 49 - 50Publisher: Cambridge University PressPrint publication year: 2018