14 - Dennstaedtiaceae
from Division 3 - Polypodiophyta
Summary
Perennial herbs with deeply subterranean, very extensive, hairy rhizomes, but without scales. Fronds borne singly, spirally coiled when young, of one kind, (2–)3-pinnate, with strong long stem-like stipe and rhachis; lower pinnae often remote. Sori marginal, more or less continuous, enfolded by reflexed margin of the pinnule. Plants homosporous. Gametophyte green, surface-living.
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- Flora of Great Britain and Ireland , pp. 24 - 26Publisher: Cambridge University PressPrint publication year: 2018