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The gametophyte ofCystopteris fragilis

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Proceedings / Indian Academy of Sciences

Summary

The spores ofCystopteris fragilis are monolete with spinate exine and devoid of perine.

On germination a germ filament is produced which when 4–6 cells long has the terminal cell dividing obliquely twice to form an obconical apical meristematic cell. Marginal hairs are produced by young thalli. The apical cell is replaced by a multicellular meristem when the thalli become cordate. An apical cell stage is frequently omitted and spatulate, ameristic thalli develop a multicellular meristem directly.

The mature prothallus is cordate with a broad midrib and bears marginal and superficial unicellular hairs.

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Authors and Affiliations

  1. Pteridology Laboratory, National Botanic Gardens, Lucknow

    Surjit Kaur

Authors
  1. Surjit Kaur
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Additional information

Communicated by Dr. V. Puri,f.a.sc.

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Kaur, S. The gametophyte ofCystopteris fragilis . Proc. Indian Acad. Sci. 58, 148–152 (1963). https://doi.org/10.1007/BF03051947

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  • DOI: https://doi.org/10.1007/BF03051947

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