. Botany of the living plant. Botany; Plants. j B01 ANY OF THE LIVING PLANT takes place not in the preparation of the mother-cell, but during the first lln ithiD it. The whole development is here condensed, and stages seen elsewhere are entirely omitted. There is thus considerable latitude in the details of the nucellus, associated with marked differences in its bulk. Speaking generally, the nucellus is more bulky in relatively primitive types, such as the Rosaceae and Ranunculaceae, tnd especially in the Fagales. It is less bulky in advanced types, such as the (,,„„ .pctalous Dicotyledons, or
. Botany of the living plant. Botany; Plants. j B01 ANY OF THE LIVING PLANT takes place not in the preparation of the mother-cell, but during the first lln ithiD it. The whole development is here condensed, and stages seen elsewhere are entirely omitted. There is thus considerable latitude in the details of the nucellus, associated with marked differences in its bulk. Speaking generally, the nucellus is more bulky in relatively primitive types, such as the Rosaceae and Ranunculaceae, tnd especially in the Fagales. It is less bulky in advanced types, such as the (,,„„ .pctalous Dicotyledons, or the Orchids. But the former often make up tins by the elaborate structure of their single integument. In sharp contrast to this variability of the nucellus, or megasporan- gium in Flowering Plants, is the dead level of uniformity shown by the embryo-sac or megaspore, and its contents. So great is this that,. v/ m. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
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Keywords: ., bookcentury1900, bookpublis, booksubjectbotany, booksubjectplants
