. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. Fig. 6.—A, vert, section of grain of Oats {Avena\ with large perisperm; a, cotyledon with its pointed scutellum, or sihield; g, plumule; r, radicle. B,em- bryo removed and still more enlarged; a, scutellum; c, cotyledon ; /, slit through which the plumule will pass out in sprouting; r, radicle. O, grain of Wheat {Triticnm) sprouting; </, seed ; /, plumule ; r, coleo- rhiza, or root-slu-ath. D, grain of Indian Corn (2ea) sprouting; plumule with three leaves; stem sending
. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. Fig. 6.—A, vert, section of grain of Oats {Avena\ with large perisperm; a, cotyledon with its pointed scutellum, or sihield; g, plumule; r, radicle. B,em- bryo removed and still more enlarged; a, scutellum; c, cotyledon ; /, slit through which the plumule will pass out in sprouting; r, radicle. O, grain of Wheat {Triticnm) sprouting; </, seed ; /, plumule ; r, coleo- rhiza, or root-slu-ath. D, grain of Indian Corn (2ea) sprouting; plumule with three leaves; stem sending out adventitious roots above the collum. like those of the parent plant. Whilst this process is going on in the embryo itself, the embryo-sac becomes filled with nutrient substances which are provided to sustain the embryo at the time of germination (Fig. 6, A; Fig. 9, 2). This food is called Perisperm (Gr. peri, around, sperma, seed), because it asually obliterates the embryo-sac and fills the cells of the nucleus, thus surrounding the embryo, which is the soul of the seed. It is the perisperm in the grains— Wheat, Oats, Maize, etc.—which furnishes our flour and meal. [Sometimes the embryo-sac persists at a certain. 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 Ketchum, Annie Chambers, 1824-1904. Philadelphia, J. B. Lippincott company
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisher, booksubjectbotany
