. Text-book of botany, morphological and physiological. Botany. IO MORPHOLOGY OF THE CELL. cell conjugates with two others, and takes up both their protoplasm-masses ; in these cases the zygospore is the product of three cells. In the Myxomycetes the swarm-cells (Myxo-amcebae), which are endowed with a peculiar motion, coalesce gradually in great numbers, and finally form large, motile, naked protoplasm-masses, the Plasmodia, which only at a subsequent period are transformed into a number of cells. In the cases hitherto considered the uniting protoplasm-masses are of equal size; the process of
. Text-book of botany, morphological and physiological. Botany. IO MORPHOLOGY OF THE CELL. cell conjugates with two others, and takes up both their protoplasm-masses ; in these cases the zygospore is the product of three cells. In the Myxomycetes the swarm-cells (Myxo-amcebae), which are endowed with a peculiar motion, coalesce gradually in great numbers, and finally form large, motile, naked protoplasm-masses, the Plasmodia, which only at a subsequent period are transformed into a number of cells. In the cases hitherto considered the uniting protoplasm-masses are of equal size; the process of fertilisation in many Cryptogams differs from them only in the fact that the two protoplasm-masses which coalesce are of unequal size, and otherwise of different properties. In Book II. we shall treat in detail of the reproduction of Cryptogams; here we need only state that the male fertilising bodies (antherozoids) of Cryptogams are usually motile naked protoplasm-masses, that is, primordial cells; the female organ of these plants usually opens outwardly, and ^contains a primordial cell. 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 Sachs, Julius, 1832-1897; Vines, Sydney Howard, 1849-1934. ed. and tr. Oxford, Clarendon press
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1882
