. Botany for high schools. Botany. Fig. 4. Bean seeds germinating, seed coat slipping off. Fig. 5- Beans germinating, one cotyledon removed, showing expanding plumule. the slender stem to push the bulky cotyledons up ahead of it. The cotyledons are therefore pulled from the ground as the loop straightens up after emerging from the soil. This portion of the stem (hypo- cotyl) becomes quite long in the bean, but is quite short in the corn. ^ The cotyledons are thus lifted above the ground. They become more or less shrivelled and shrunken ^^s- ^• , r 1 f 1 1 How the garden bean comes out of the g
. Botany for high schools. Botany. Fig. 4. Bean seeds germinating, seed coat slipping off. Fig. 5- Beans germinating, one cotyledon removed, showing expanding plumule. the slender stem to push the bulky cotyledons up ahead of it. The cotyledons are therefore pulled from the ground as the loop straightens up after emerging from the soil. This portion of the stem (hypo- cotyl) becomes quite long in the bean, but is quite short in the corn. ^ The cotyledons are thus lifted above the ground. They become more or less shrivelled and shrunken ^^s- ^• , r 1 f 1 1 How the garden bean comes out of the ground, because of the food substance First the looped hypocotyl, then the cotyledons . f 1 1 r pulled out, next casting off the seed coat, last the Withdrawn for the growth cf plant erect, bearing thick cotyledons, the expand- ing leaves, and the plumule between them. the seedlmg, and finally fall away, as the young membranous leaves expand and the stem 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
