. Botany for high schools and colleges. Botany. Fis. 326. Pig. 327. Fig. 328. A tangential section of ttie cambinm region of Cytisus Laburnum, a, ft, c, d, cambium cells enclosing the section of a medullary ray ; h, h, tracheides belong- ing to the xylem. x 145.—After De Bary. Fig. 327.—Tangential section of the inner phloem regioii of the same stem as Fig. 326. 8, 8,8, sieve vessels ; m. section of a small medullary ray; the remaining parts of the figure are phloem parenchyma. X 145.—After De Bary. processes described above take place each year, giving rise, thus to an annual layer of xylem (
. Botany for high schools and colleges. Botany. Fis. 326. Pig. 327. Fig. 328. A tangential section of ttie cambinm region of Cytisus Laburnum, a, ft, c, d, cambium cells enclosing the section of a medullary ray ; h, h, tracheides belong- ing to the xylem. x 145.—After De Bary. Fig. 327.—Tangential section of the inner phloem regioii of the same stem as Fig. 326. 8, 8,8, sieve vessels ; m. section of a small medullary ray; the remaining parts of the figure are phloem parenchyma. X 145.—After De Bary. processes described above take place each year, giving rise, thus to an annual layer of xylem (wood) outside of the pre- viously formed xylem cylinder, and an annual layer of phloem (bark) inside of the phloem cylinder. In the wood these layers are generally quite well marked, and in cold climates they enable us to determine with accuracy the age. 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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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1888
