The gametophyte ofAcrostichum aureum L.

  • B. K. Nayar
  • Farrukh Kazmi


The spores ofA. aureum are trilete and granulose. On germination, a 6–10 cells long germ filament is produced, in which growth is mainly by intercalary formation of new cells rather than by cell elongation. One or two of the terminal cells become quiescent soon, and the intercalary cells form a prothallial plate. Cells on one side of the plate are more active than those on the other, and a broad ameristic lateral lobe is developed by their activity. As the lobe becomes spatulate, a multicellular meristem is differentiated from marginal cells on the side facing the posterior end of the germ filament. By the activity of the meristem the prothallus becomes cordate, with the meristem at the bottom of the notch. A midrib is formed behind the notch and the prothallus grows to become asymmetrically cordate. The mature prothallus is naked and with ruffled wings. Juvenile leaves possess entire, naked lamina.


Lateral Lobe Terminal Cell Intercalary Cell Juvenile Leaf Leptosporangiate Fern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Alston, A. F. G... “The subdivision of the Polypodiaceae,”Taxon, 1956,5, 23–26.CrossRefGoogle Scholar
  2. Atkinson, L. R... “The Schizaeaceae: The gametophyte ofMohria,”Phytomorphology, 1960,10, 351–67.Google Scholar
  3. —————.. “The Schizaeaceae: The gametophyte ofAnemia,” Ibid., 1962,12, 264–88.Google Scholar
  4. Ching, R. C... “On natural classification of the Polypodiaceae,”Sunyatsenia, 1940,5, 201–68.Google Scholar
  5. Christensen, C. .. “Filicineae.” In Verdoorn’sManual of Pteridology, 1938.Google Scholar
  6. Copeland, E. B. ..Genera Filicum. Waltham, Mass., U.S.A., 1947.Google Scholar
  7. Erdtman, G. ..Pollen Morphology and Plant Taxonomy. Uppsala, Sweden, 1952.Google Scholar
  8. Holttum, R. E... “A revised classification of the leptosporangiate ferns,”J. Linn. Soc. (Bot.), 1947,58, 123–53.CrossRefGoogle Scholar
  9. Hooker, W. J. and Baker, J. G.Synopsis Filicum. London, 1868.Google Scholar
  10. Kaur, S... “Gametophyte ofAnemia phyllitidis,”Sci. and Cult., 1961,27, 347–50.Google Scholar
  11. Nayar, B. K... “Studies in Pteridaceae. II.Hemionites Linn.,”J. Indian bot. Soc., 1956,35, 333–43.Google Scholar
  12. —————.. “Morphology of the spores, prothalli and juvenile sporophyte ofDoryopteris J. Sm.,”Curr. Sci., 1960b,29, 380–82.Google Scholar
  13. —————.. “The gametophyte ofQuercifilix Copel.,”Lloydia, 1960a,23, 102–08.Google Scholar
  14. ----- .. “Ferns of India. V.Cheilanthes,”Bull. Natl. Bot. Gards., 1962a, No.68, 1–36.Google Scholar
  15. —————.. “Morphology of the spores and prothalli of some species of the Polypodiaceae,”Bot. Gaz., 1962,123, 223–32.CrossRefGoogle Scholar
  16. ----- .. “Ferns of India. VII.Actiniopteris,”Bull. Natl. Bot. Gards., 1962c, No.75, 1–14.Google Scholar
  17. —————.. “Morphology of the gametophyte ofConiogramma fraxinea,”Curr. Sci. 1962d,31, 522–24.Google Scholar
  18. —————.. “Contributions to the morphology of some species of the Maidenhair ferns,”J. Linn. Soc. (Bot.), 1962e,58, 185–200.CrossRefGoogle Scholar
  19. —————.. “The morphology of some species ofCheilanthes,” Ibid., 1963,58, 449–60.CrossRefGoogle Scholar
  20. -- and Bajpai, N. .. “Morphology of the gametophyte of some species ofPellaea andNotholaena,”Ibid., 1964. (in press).Google Scholar
  21. -- and Chandra, P. .. “Observations on the gametophyte ofCyclosorus,”J. Indian bot. Soc., 1963,43 (in press).Google Scholar
  22. —— and Devi, S... “Spore morphology of some Japanese Aspidiaceae,”Pollen etSpores, 1963,5, 354–72.Google Scholar
  23. ----- .. “Spore morphological studies on Indian Ferns. I. The Aspidiaceae,”Grana Palynologica, 1964 (in press).Google Scholar
  24. -- and Kaur, S. .. “Ferns of India. IV.Peranema andAcrophorus,”Bull. Natl. Bot. Gards., 1963, No.81, 1–40.Google Scholar
  25. Schumann, E... “Die Acrosticheen und ihre Stellung im System der Farne,”Flora, 1915,108, 201–60.Google Scholar
  26. Stokey, A. G. and Atkinson, L. R. “The gametophyte ofAcrostichum speciosum Willd.,”Phytomorphology, 1952,2, 105–13.Google Scholar

Copyright information

© Indian Academy of Sciences 1964

Authors and Affiliations

  • B. K. Nayar
    • 1
  • Farrukh Kazmi
    • 1
  1. 1.Pteridology LaboratoryNational Botanic GardensLucknow

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