. The anatomy of woody plants. Botany -- Anatomy. THE ROOT 157 Fig. 113 shows the central region of the root under a higher degree of magnification', and the arrangements described above now become much more clearly visible. Another structural feature now for the first time presents itself—namely, the presence of groups of small- sized elements of the primary xylem in alternation with the more. FIG. 113.—Part of same, more highly magnified pronounced radial bands of secondary wood and phloem. The protoxylem groups are incompletely united in the center, and a pithlike cluster of parenchymatous
. The anatomy of woody plants. Botany -- Anatomy. THE ROOT 157 Fig. 113 shows the central region of the root under a higher degree of magnification', and the arrangements described above now become much more clearly visible. Another structural feature now for the first time presents itself—namely, the presence of groups of small- sized elements of the primary xylem in alternation with the more. FIG. 113.—Part of same, more highly magnified pronounced radial bands of secondary wood and phloem. The protoxylem groups are incompletely united in the center, and a pithlike cluster of parenchymatous cells is consequently found in the midst of the primary wood, a condition quite frequently present both in herbaceous dicotyledons and generally in the monocotyledons. In the woody dicotyledons and in the conifers a structure comparable to the pith of the stem is ordinarily absent in 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 Jeffrey, Edward C. (Edward Charles), b. 1866. Chicago, Ill. , The University of Chicago Press
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