. Botany for high schools and colleges. Botany. OELL FORMATION BT DIVISION. 43 one mass before escaping ; while in Rejuvenescence the whole proto- plasm escapes without dividing. Rej uvenescence may then be regarded. Fi?. 33.—Endosperm-cells of Phaeeohis muWflorus. A, the production of new cells in the protoplasm of the embryo sac ; n, n, ?i, nuclei; a, a, a, masses of protoplasm grtthereil around the nuclei; &, younp cell, but without a wall of cellulose ; c-, young cell with a wall; c', d, young cells with walls and vacuoles. B, two cells of the endosperm in a much later stase ; ihe cell
. Botany for high schools and colleges. Botany. OELL FORMATION BT DIVISION. 43 one mass before escaping ; while in Rejuvenescence the whole proto- plasm escapes without dividing. Rej uvenescence may then be regarded. Fi?. 33.—Endosperm-cells of Phaeeohis muWflorus. A, the production of new cells in the protoplasm of the embryo sac ; n, n, ?i, nuclei; a, a, a, masses of protoplasm grtthereil around the nuclei; &, younp cell, but without a wall of cellulose ; c-, young cell with a wall; c', d, young cells with walls and vacuoles. B, two cells of the endosperm in a much later stase ; ihe cells have fused their walls so as to form a false tissue ; in the angles between the cells are intercellular spaces filled with some of the protoplasm of the mother-cell (embryo sac): the cell a is in process of fi-sion, the two nuclei n, n, are near together, as if formed by the fiesion of the original nu- cleus ; s, line indicating the boundaries of the two masses of protoplasm; the cell 5 is fully divided, and the two parts are Sep irated by the wall cl. X 670.—After Dippel. as a case of internal cell-formation in which there is no division of the 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt
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