. Corn plants; their uses and ways of life. PROVISION FOR OFFSPRING. 65 other substances without being themselves trans- formed, are called ferments. In the mouth is formed another ferment, called ptyalhi^ which has the power of changing starch into sugar. In the farmer boy's separation of wheat "gum," ptyalin plays a most important part. AVe may thus explain why the kernels become sweet with. Fig. 18. A spikelet of cultivated oat in fruit. F, the awned inner bract swollen with the ripe grain within; A, awn ; F', another ripe " oat " sep- arated from the little rachis (R) a
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. Corn plants; their uses and ways of life. PROVISION FOR OFFSPRING. 65 other substances without being themselves trans- formed, are called ferments. In the mouth is formed another ferment, called ptyalhi^ which has the power of changing starch into sugar. In the farmer boy's separation of wheat "gum, " ptyalin plays a most important part. AVe may thus explain why the kernels become sweet with. Fig. 18. A spikelet of cultivated oat in fruit. F, the awned inner bract swollen with the ripe grain within; A, awn ; F', another ripe " oat " sep- arated from the little rachis (R) and turned to show its inner face where the edges of the bract inclosing the grain are seen not quite meeting at the centre. About natural size. (Original.). 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.. Sargent, Frederick Leroy, 1863-1928. Boston, New York : Houghton, Mifflin and company