. Elementary botany : theoretical and practical. A text-book designed primarily for students of science classes connected with the science and art department of the committee of council on education . Botany. Fig. 13.—Cell from the stem of Aloe rehisa, with raphides. Fig. 14.—Crystalloid, kr^ in a parenchymatous cell of the Potato tuber; k^ nucleus. other granular contents, but this is not universal. In chemical composition they consist of phosphate of calcium, or more often of oxalate of calcium. Carbonate or sulphate of calcium is sometimes met with. In shape they are either cubical, octo- h


. Elementary botany : theoretical and practical. A text-book designed primarily for students of science classes connected with the science and art department of the committee of council on education . Botany. Fig. 13.—Cell from the stem of Aloe rehisa, with raphides. Fig. 14.—Crystalloid, kr^ in a parenchymatous cell of the Potato tuber; k^ nucleus. other granular contents, but this is not universal. In chemical composition they consist of phosphate of calcium, or more often of oxalate of calcium. Carbonate or sulphate of calcium is sometimes met with. In shape they are either cubical, octo- hedral, or needle-like (hence the name of raphides, from the Greek name for a needle). Crystalloids.—In some cells, especially those of fatty seeds like the Brazil nut, bodies are found which are crystal-like in appearance, but instead of being mineral in composition, con- sist of proteinaceous or nitrogenous material closely allied to. 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 Edmonds, Henry. London and New York : Longmans, Green, and Co.


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1888