. The power of movement in plants. Plants; Botany. A. B. Oxalls corniculata: A .ind B the alitnst rudimentary pulvini of the coty- ledons of two rather old seedlings, viewed as transparent objects. Magnified 50 times. been dissected out of the seed averaged in length 7 divisions of the micrometer (each division equalling '003 mm ), and were a little longer than those forming a well-developed pulvinus, which varied between 4 and 6 of these same divisions. After a f3W additional days the ill-defined zone of cells becomes distinct, and although it does not extend across the whole width of the pet


. The power of movement in plants. Plants; Botany. A. B. Oxalls corniculata: A .ind B the alitnst rudimentary pulvini of the coty- ledons of two rather old seedlings, viewed as transparent objects. Magnified 50 times. been dissected out of the seed averaged in length 7 divisions of the micrometer (each division equalling '003 mm ), and were a little longer than those forming a well-developed pulvinus, which varied between 4 and 6 of these same divisions. After a f3W additional days the ill-defined zone of cells becomes distinct, and although it does not extend across the whole width of the petiole, and although the cells are of a green colour from contain- ing chlorophyll, yet they certainly constitute a pulvinus, which, as -we shall presently see, acts as one. These small cells were arranged in longitudinal rows, and varied from 4 to 7 in number; and the cells themselves varied in length in different jarts of the 9. 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 Darwin, Charles, 1809-1882; Darwin, Francis, Sir, 1848-1925. New York, Appleton


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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants