Sentence Examples


  • During the process of fertilization in the Angiosperms it has been shown by the researches of Nawaschin and Guignard that in Lilium and Fritillaria both generative nuclei enter the embryo sac, one fusing with the oosphere nucleus, the other with the polar nuclei (fig.
  • 9, B), or wall- communis (A) and endos threads which are present in the perm of Lilium Martagon wall of the cell (fig.
  • They are very thick in Viscum album, and are well seen in Phaseolus inultiflorus and Lilium Martagon.
  • They are present from the beginning of the development of the cell-wail, and arise from the spindle fibres, all of which may be continued as connecting threads (endosperm of Tamus communis), or part of them may be overlaid by cellulose lamellae (endosperm of Lilium Martagon), or they may be all overlaid as in pollen mother-cells and pollen grains of Helleborus foetidus.
  • LTTERATURE.The following is a list of a few of the more important papers in which further information and a more complete list of literature will be found: Allen, Nuclear Division in the Pollen Mother-cells of Lilium canadense, Annals of Botany (1905), vol.

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