. Nature and development of plants. Botany. W A B Fig. i66. Fig. 167. Fig. 166. A common smut, Ustilago, transforming the kernels of corn into sooty black pustules. Fig. 167. The formation and germination of the spore of a smut: A, the formation of the spores from the mycelium in the kernel of corn. B, germination of a spore and the appearance of the basidiospore. of the United States exceeds $2,000,000 annually. In the case of corn, the parasite keeps pace with the growth of the plant without producing serious damage until the flowers appear, when the mycelium increases greatly in the affecte
. Nature and development of plants. Botany. W A B Fig. i66. Fig. 167. Fig. 166. A common smut, Ustilago, transforming the kernels of corn into sooty black pustules. Fig. 167. The formation and germination of the spore of a smut: A, the formation of the spores from the mycelium in the kernel of corn. B, germination of a spore and the appearance of the basidiospore. of the United States exceeds $2,000,000 annually. In the case of corn, the parasite keeps pace with the growth of the plant without producing serious damage until the flowers appear, when the mycelium increases greatly in the affected ears and "tassels" producing sometimes enormous malformation, especially in the ears, which appear as glistening white blisters or pustules. Later, these bodies change to a sooty black, owing to the transformation of the cells of the mycelium (Fig. 167, A) into black greasy spores. These spores are scattered in clouds upon the breaking of the pustules and germinate much after the manner of the telio- spores of the rusts, infesting the young and delicate parts of. 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 Curtis, Carlton Clarence, 1864-1945. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisher, booksubjectbotany
