. Nature-study; a manual for teachers and students. Nature study. 352 NATURE-STUDY The rosy-cheeked apple, the purple grape, and the luscious cherry all are excellent eating—all but the seeds or pits. These we throw away. Perhaps they will spring up some- where. The attractive colors, the fragrance, the delicious flavor, the edible pulp are all intended to attract animals to eat the fruit. The seeds are either not eaten or pass through the digestive tract uninjured. Birds, especially, help to dis- seminate seeds in this way. i Along fences where birds are apt to rest, we find grape- vines, goo
. Nature-study; a manual for teachers and students. Nature study. 352 NATURE-STUDY The rosy-cheeked apple, the purple grape, and the luscious cherry all are excellent eating—all but the seeds or pits. These we throw away. Perhaps they will spring up some- where. The attractive colors, the fragrance, the delicious flavor, the edible pulp are all intended to attract animals to eat the fruit. The seeds are either not eaten or pass through the digestive tract uninjured. Birds, especially, help to dis- seminate seeds in this way. i Along fences where birds are apt to rest, we find grape- vines, gooseberry, raspberry, blackberry, elder, sumach, hawthorn, red cedars, and other vines, trees, and shrubs that bear fruit. Squirrels and other animals also scatter fruit seeds and nuts. Many squir- rels have a way of burying acorns and walnuts either singly or in large piles. Some of these are pretty sure to germinate. The burning-bush or waahoo is an interesting illustration of a plant dependent upon birds for scattering its seed. In the fall the bright red fruit remains on the bushes long after the leaves have fallen off. This makes the fruit all the more conspicuous. There are a few plants that do not rely upon the accidental agency of wind, water, or animals to scatter their seeds. They have devices of their own for forcibly throwing the. Fig. 147. Explosive Pods. t Sweet Pea and Balsam.). 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 Holtz, Frederick Leopold, 1870-. New York, C. Scribner's Sons
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