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Studies on seeds with ruminate endosperm

VI. Rumination in the araliaceae, aristolochiaceae, caprifoliaceae and ebenaceae

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Proceedings / Indian Academy of Sciences

Abstract

InDiospyros, the ovules are bitegmic, but after fertilization the inner integument fails to grow and exhibit any morphological changes. Seed development is of the massive chalazal type. Rumination ingrowths develop from the seedcoat which is formed by chalazal growth in basipetal continuation of the integuments. The endosperm develops early and hence the ingrowths are formed directly into its tissue.

InApama, seed development is normal chalazal. The seedcoat becomes irregularly wavy due to unequal radial elongation and bending of the cells of the outermost layer of the inner integument. The endosperm develops late and becomes ruminate by replacing all the nucellus. Rumination is of theAnnona type in bothDiospyros andApama.

Certain developmental stages ofViburnum foetens andArthrophyllum diversifolium indicate that development of rumination in these is of theSpigelia type and similar to what obtains in the genusPsychotria of the Rubiaceae.

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Authors and Affiliations

  1. Department of Botany, Presidency College, Madras

    K. Periasamy

Authors
  1. K. Periasamy
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Additional information

Communicated by Dr. T. V. Desikachary,f.a.sc.

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Periasamy, K. Studies on seeds with ruminate endosperm. Proc. Indian Acad. Sci. 64, 127–134 (1966). https://doi.org/10.1007/BF03052125

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  • DOI: https://doi.org/10.1007/BF03052125

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