. Botany for high schools. Botany. GROWTH AND WORK OF PLANTS flowering the tuft of silk emerges from between the husks at the end of the ear. 267. The pistillate flowers of Indian corn.—The pistillate flowers are well seen by taking a young ear of corn soon after the silk has emerged. If the husks are carefully stripped off with- out breaking the silk, and this is shaken out so as to separate the threads as much as possible, it will be seen that each long thread of silk is connected with the tip of a small and young grain of corn. This is the pistil of the flower. The thread of silk is the sty
. Botany for high schools. Botany. GROWTH AND WORK OF PLANTS flowering the tuft of silk emerges from between the husks at the end of the ear. 267. The pistillate flowers of Indian corn.—The pistillate flowers are well seen by taking a young ear of corn soon after the silk has emerged. If the husks are carefully stripped off with- out breaking the silk, and this is shaken out so as to separate the threads as much as possible, it will be seen that each long thread of silk is connected with the tip of a small and young grain of corn. This is the pistil of the flower. The thread of silk is the style and the young grain of corn is the ovary. If the surface of the silky threads is examined with a hand lens for some distance over the portion which extends outside of the husks, numerous short hairs will be seen. These serve to hold the pollen grains. It is easy to see that when the pollen grain germinates the tube must travel a long distance to reach the egg cell in the ovule. 268. There is a cluster of delicate white membranous scales which envelop each ovary at this stage, so that only the tip of the ovary, where the style is attached, is exposed. In the ripe. Fig. 119. Fig. 120. Spikelet of oat. One glume re- showing two moved, showing fer- glumes. tile flower. Flower opened, Section showing snowing two palets, ground plan of three stamens, and flower, a, axis, two lodicules at base 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
