. A text-book of botany for secondary schools. Botany. CHAPTER V GERMINATION OF SEEDS 42. Introductory.—In the preceding chapters the struc- ture and the work of the three great nutritive organs (leaf, stem, and root) of the higher plants were considered. In studying the germination of seeds, these organs may be observed assuming their various positions and relations, and the student may be introduced to certain important Fig. 81.—Section of bean; renr\oving one cotyledon, and showing the testa, the remaining cotyledon, the hypocotyl (its tip in position to emerge), and the plumule. Pe
. A text-book of botany for secondary schools. Botany. CHAPTER V GERMINATION OF SEEDS 42. Introductory.—In the preceding chapters the struc- ture and the work of the three great nutritive organs (leaf, stem, and root) of the higher plants were considered. In studying the germination of seeds, these organs may be observed assuming their various positions and relations, and the student may be introduced to certain important Fig. 81.—Section of bean; renr\oving one cotyledon, and showing the testa, the remaining cotyledon, the hypocotyl (its tip in position to emerge), and the plumule. Perhaps the most common seed used in class study of seed germination is the garden bean, although other seeds should be germinated in the laboratory, and, when possible, studies of germination should be extended beyond the laboratory. 43. General structure of the seed.—It is very common to study even the surface of the seed in great detail, but 84. 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 Coulter, John Merle, 1851-1928. New York, D. Appleton
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