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Reproductive Biology of Gymnosperms

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Reproductive Biology of Plants

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Abstract

The gymnosperms (an ancient group of plants) date back to the Devonian (395–359 my BP—million years before present). These plants constituted most of the world’s dominant vegetation throughout the Late Palaeozoic (350–250 my BP), Mesozoic (141–65 my BP) and steadily declined thereafter. In the Tertiary (65 my BP) while the gymnosperms declined, the angiosperms evolved steadily. Thereafter, the angiosperms became dominant and the gymnosperms occupied a secondary position. At present there are ca. 72 genera and 760 species. These are grouped into seven orders: Cycadales, Ginkgoales, Coniferales, Taxales, Ephedrales, Welwitschiales and Gnetales.

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Authors
  1. Chhaya Biswas
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  2. B. M. Johri
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Editor information

Editors and Affiliations

  1. Central Reference Library, University of Delhi, 110 007, Delhi, India

    B. M. Johri

  2. Centre for Biotechnology, Faculty of Science, Jamia Hamdard, 110 062, New Delhi, India

    P. S. Srivastava

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© 2001 Narosa Publishing House

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Biswas, C., Johri, B.M. (2001). Reproductive Biology of Gymnosperms. In: Johri, B.M., Srivastava, P.S. (eds) Reproductive Biology of Plants. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-50133-3_10

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  • DOI: https://doi.org/10.1007/978-3-642-50133-3_10

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-50135-7

  • Online ISBN: 978-3-642-50133-3

  • eBook Packages: Springer Book Archive

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