false indusium

false indusium
noun
: the revolute margin of some fern pinnae (as in the bracken and maidenhair ferns)

Useful english dictionary. 2012.

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  • fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… …   Universalium

  • Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… …   Universalium

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  • Pteridaceae — ▪ plant family Introduction       the maidenhair fern family, containing about 50 genera and approximately 950 species, in the division Pteridophyta (the lower vascular plants (plant)). Members of Pteridaceae are distributed throughout the world …   Universalium

  • Pteridium — noun a genus of ferns belonging to the family Dennstaedtiaceae • Syn: ↑genus Pteridium • Hypernyms: ↑fern genus • Member Holonyms: ↑Dennstaedtiaceae, ↑family Dennstaedtiaceae • Member Merony …   Useful english dictionary

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  • Vittariaceae — Taxobox name = Pteridaceae regnum = Plantae divisio = Pteridophyta classis = Pteridopsida ordo = Pteridales familia = Vittariaceae subdivision ranks = Genera subdivision = * Vittaria * Anetium * Hecistopteris * Monogramma * Anthrophyum… …   Wikipedia

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