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17 - Woodsiaceae

from Division 3 - Polypodiophyta

Peter Sell  and
Gina Murrell
Peter Sell
Affiliation:
University of Cambridge
Gina Murrell
Affiliation:
University of Cambridge
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Summary

Perennial herbs with short, rarely long rhizomes. Fronds borne in tufts at the end of rhizomes or sometimes singly at intervals, spirally coiled when young, with scales of 1 or 2 kinds, fertile and sterile, 1- to 4-pinnate; stipe grooved, with 2 vascular bundles which unite distally into a single strand. Sori variable. Indusia present or absent. Plants homosporous. Gametophyte green, surface-living.

  • Fertile fronds very different from the sterile ones 2.

  • Fertile and sterile fronds similar 3.

  • Lamina of sterile fronds oblanceolate, bipinnate 1. Matteuccia

  • Lamina of fronds triangular, pinnate 2. Onoclea

  • Rhachis jointed below the middle; indusia cup-shaped, fringed with long jointed hairs 6. Woodsia

  • Rhachis not jointed; indusia different from last or absent 4.

  • Fronds tufted; lamina lanceolate or oblanceolate 5.

  • Fronds single, from an elongated rhizome; lamina more or less triangular 6.

  • Sori elongated or suborbicular (if so without indusium); fairly large plants, usually growing on soil 3. Athyrium

  • Sori orbicular, with indusium at least when young; small plants, usually growing in rock fissures or on walls 5. Cystopteris

  • Pinnules entire or finely serrate; indusia absent 4. Gymnocarpium

  • Proximal pinnules pinnate; sori when young with bowlshaped indusium 5. Cystopteris

    • Type
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    Flora of Great Britain and Ireland , pp. 32 - 38
    Publisher: Cambridge University Press
    Print publication year: 2018

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    • Woodsiaceae
    • Peter Sell, University of Cambridge, Gina Murrell, University of Cambridge
    • Book: Flora of Great Britain and Ireland
    • Chapter DOI: https://doi.org/10.1017/9780511980091.026
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    • Woodsiaceae
    • Peter Sell, University of Cambridge, Gina Murrell, University of Cambridge
    • Book: Flora of Great Britain and Ireland
    • Chapter DOI: https://doi.org/10.1017/9780511980091.026
    Available formats
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    • Woodsiaceae
    • Peter Sell, University of Cambridge, Gina Murrell, University of Cambridge
    • Book: Flora of Great Britain and Ireland
    • Chapter DOI: https://doi.org/10.1017/9780511980091.026
    Available formats
    ×