. Foundations of botany. Botany; Botany. Fig. 239. —Blade of Leaf of Sundew. (Somewhat magnified.) This growth completely surrounds the young, active tips of all the roots and the threads of the mykorhiza, as it is called, seem to do the work of root- hairs. 410. Carnivorous Plants. — In the ordinary pitcher-plants (Fig. 237) the leaf appears in the shape of a more or less hooded pitcher. These pitchers are usually partly filled with water, and in this water very many drowned and decaying insects are commonly to be found. The insects have flown or crawled into the pitcher, and, once inside, ha
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. Foundations of botany. Botany; Botany. Fig. 239. —Blade of Leaf of Sundew. (Somewhat magnified.) This growth completely surrounds the young, active tips of all the roots and the threads of the mykorhiza, as it is called, seem to do the work of root- hairs. 410. Carnivorous Plants. — In the ordinary pitcher-plants (Fig. 237) the leaf appears in the shape of a more or less hooded pitcher. These pitchers are usually partly filled with water, and in this water very many drowned and decaying insects are commonly to be found. The insects have flown or crawled into the pitcher, and, once inside, have been unable to escape «n account of the dense growth of bristly hairs about the mouth, all pointing inward and downward. How much the com- mon American pitcher- plants depend for nourishment on the drowned insects in the pitchers is not defi- nitely known, but it is certain that some of the tropical species re- quire such food.^ In other rather com- mon plants, the sun- dews, insects are.. 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 work.. Bergen, Joseph Y. (Joseph Young), 1851-1917; Eastwood, Alice, 1859-1953. Boston, Ginn & Co.