. Botany of the living plant. Botany; Plants. 353A BOTANY OF THE LIVING PLANT whole evolutionary sequence, there can be little doubt of the Homology of the sexual process in them all, and in the gametangia which produce the gametes themselves. The determination of all questions of homogeny, homology, and analogy must ultimately be based upon a knowledge of Descent. Until the phyletic lines for any series of plants are demonstrated the recognition of such relations of their parts cannot rest on more than carefully balanced opinion. A comparative examination of organisms lower in the scale, and
. Botany of the living plant. Botany; Plants. 353A BOTANY OF THE LIVING PLANT whole evolutionary sequence, there can be little doubt of the Homology of the sexual process in them all, and in the gametangia which produce the gametes themselves. The determination of all questions of homogeny, homology, and analogy must ultimately be based upon a knowledge of Descent. Until the phyletic lines for any series of plants are demonstrated the recognition of such relations of their parts cannot rest on more than carefully balanced opinion. A comparative examination of organisms lower in the scale, and ultimately a grouping of them into phyletic sequences, will therefore be necessary before a final basis can be found for the classification of their parts. The point of view from which their study is at present to be approached is that they will supply a basis, however imperfect, for such a classification. This will not only help to explain their own mutual relations, but also to illuminate the morphology and classification of plants higher in the scale of Vegeta- tion. It is only by such comparative study that the details of the structure and propagation seen in the Higher Flowering Plants can be reasonably interpreted. In par- ticular, the Seed, which is the most distinctive feature of the Higher Plants, cannot be properly under- stood unless it be shown by com- parison with more primitive plants how that very complex body came into Sporangium Phylloid ~ Telome. 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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