. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. must be very thin. The following measurements of single large cells given b^' de Bary serve to indicate their wide range in size : Length, mm. Cucuvliita Pepo Calarau3 Rotang .... Potaniogeton natans . .275 Vitis vinifera 6 Transverse diameter, mm. .045 . . . .025 281 cells. The sieve-plates occur at the points of contact of sieve- They arc always found at tlie ends of the cells, and may cells isolateil by maceration; the septa are in tli
. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. must be very thin. The following measurements of single large cells given b^' de Bary serve to indicate their wide range in size : Length, mm. Cucuvliita Pepo Calarau3 Rotang .... Potaniogeton natans . .275 Vitis vinifera 6 Transverse diameter, mm. .045 . . . .025 281 cells. The sieve-plates occur at the points of contact of sieve- They arc always found at tlie ends of the cells, and may cells isolateil by maceration; the septa are in tlieir winter state, i?, Urancliing of cribrose-cell isolated by maceration. r,tangcntial section across a medullary ray, show- ing the transverse anastomosis of cribrose-cells; the callus at the septa is in its winter state. (Wilhelrn.) Fig. 72. Cribrose-cells in Vitis vinifera. Longitudinal tangential section (beginning of July) through the bast of a stem 1 cm. thick; vq, cribrose-cells, the oblique as well aa one horizontal perforated septum cut longitudinally. The face of one septum, however, is shown at the upper part of the figure: rm, medullary rays. (De Fig. 73. Cucurbita Pepo Longitudinal section showing terminal sieve-plates at q, q, ami a lateral one at st; ps^ contracted protoplasm. (Saclis.). 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 Goodale, George L. (George Lincoln), 1839-1923. New York [etc. ] : American Book Co.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
