. Botany, an elementary text for schools. Botany. 1G8 GEEMINATION 2!)2. Kernel of Indian corn. Ciiulicle at b; cotyledon a ; plumule P- of corn. 287). The bean "comes up" with a loop, which indicates that the hypocotyl greatly elongates. On examining a germinating seed, however, it will be found that the cotyledons are contained inside a fleshy body or sac {a, Fig. 288). This sac is the en- dosperm. To its inner surface the thin, veiny cotyledons are very closely appressed, absorbing its substance (Fig. 289). The cotyledons increase in size as they reach the air (Fig. 290), and becom
. Botany, an elementary text for schools. Botany. 1G8 GEEMINATION 2!)2. Kernel of Indian corn. Ciiulicle at b; cotyledon a ; plumule P- of corn. 287). The bean "comes up" with a loop, which indicates that the hypocotyl greatly elongates. On examining a germinating seed, however, it will be found that the cotyledons are contained inside a fleshy body or sac {a, Fig. 288). This sac is the en- dosperm. To its inner surface the thin, veiny cotyledons are very closely appressed, absorbing its substance (Fig. 289). The cotyledons increase in size as they reach the air (Fig. 290), and become functional leaves. 315. GERMINATION OF INDIAN CORN.—Soak kernels Note that the raicropyle and hilum are at the smaller end (Fig. 291). Make a longitudinal section through the narrow diameter ; Fig. 292 shows it. The single cotyledon is at a, the caulicle at h, the plumule at /). The cotyledon remains in the seed. both in the cotyledon and as endosperm, chiefly the lat- ter. The emerging shoot is the plumule, with a sheath- ing leaf {p, Fig. 293). The root is emitted from the tip of the caulicle, c. The caulicle is held in a sheath (formed mostly from the seed-coats), and some of the roots escape through the upper end of this sheath {m, Fig. 293). The epicotyl elongates, par- ticularly if the seed is Z'^*^— planted deep or if it is kept for some time / ; .".It. Indian corn. o. plumule; J I n toiy, epicotyl. confincd. lu Fig. 294. 293. Indian corn. Caulicle at c ; roots emerging at m; plumule at^;. The food is stored. 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York Macmillan
Size: 2056px × 1215px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
