. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. EVOLUTION 393 perish as a result of being handicapped in competition against, either their more adaptable contemporaries, or new forms which were better equipped to withstand the changed environment. The evolutionist conceives of all life as having developed. Fig. 229.—Seedling of an Acacia, showing the gradual differentiation of phyllodes, and suppression of the laminae, in leaves of successive ages. from relatively simple undifferentiated unicellular organisms, many of whose descendants, through the ages, h
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. EVOLUTION 393 perish as a result of being handicapped in competition against, either their more adaptable contemporaries, or new forms which were better equipped to withstand the changed environment. The evolutionist conceives of all life as having developed. Fig. 229.—Seedling of an Acacia, showing the gradual differentiation of phyllodes, and suppression of the laminae, in leaves of successive ages. from relatively simple undifferentiated unicellular organisms, many of whose descendants, through the ages, have gradually acquired an increasing complexity of structure in relation to progressive division of labour. On this hypothesis, if our know- ledge of all the extinct plants of former eras were complete, we. 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 Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
