The book A Reader in Botany volume 1 was written by author Newell Jane H. Here you can read free online of A Reader in Botany volume 1 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Reader in Botany volume 1 a good or bad book?
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2. In the Mullein (Verbascum phlomoides). (" Pflanzenleben. ") the first leaf, but every leaf, is covered with drops, and thus the stream, flowing from leaf to leaf, is ROOT AND CROWN. 69 continually reinforced and becomes greater and greater. . . . A slightly different method of guiding the rain- water may be seen in the Mullein (Fig. II). 1 The upper leaves, half clasping the stem, are upright, like those of the Alfredia^ and guide the water downward in the same way. But the leaves in the mid...dle portion of the stem are only upright for two- thirds of their length. The upper third is recurved, and the rain which falls on this upper third drops from the points of the leaves, and would thus seem to run off centrifugally. But the shape of the plant is a slender pyramid, as the leaves grow continually smaller towards the top of the stem, and the water drops from the apex of one leaf to the portion of the next lower leaf which slopes inward, and thus leads the water centrip- etally. In this way, the whole of the rainwater falling on such a plant finally reaches the neighbor- hood of the tap-root, and is used to the best ad- vantage by the rootlets proceeding from it.
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