. Introduction to botany. Botany. Plants of Past Ages. 357 and Asia, but were able to find a congenial home in Ore- gon and California. In all probability the northern flora in its southern migra- tion attempted to disseminate itself throughout the breadth of the continent, but some forms found themselves more readily adaptable to the Atlantic slopes, some to the Mis- sissippi valley, and others to the Rocky Mountains and the regions west, so that now we find more or less distinct. Fig. 193. Base of the giant Sequoia " General ; Photograph by SQUIRES. floras in these different
. Introduction to botany. Botany. Plants of Past Ages. 357 and Asia, but were able to find a congenial home in Ore- gon and California. In all probability the northern flora in its southern migra- tion attempted to disseminate itself throughout the breadth of the continent, but some forms found themselves more readily adaptable to the Atlantic slopes, some to the Mis- sissippi valley, and others to the Rocky Mountains and the regions west, so that now we find more or less distinct. Fig. 193. Base of the giant Sequoia " General ; Photograph by SQUIRES. floras in these different regions. Along the eastern coast of Asia, including the Japan islands, the physical condi- tions approximated those of our Atlantic slopes, and we find that in these regions, remote from each other, very similar floras have been evolved from the common stock which came to them during the migration in the glacial period. 229. Migration Northward.—When, for some reason,. 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 Stevens, William Chase, 1861-. Boston, D. C. Heath & Co.
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