. Introduction to botany. Botany. Growth and Movement. II1 is no cambium zone similar to that in dicotyledonous plants; but in such monocotyledonous plants as the Aloe and Yucca (6") a zone of cells near the periphery of the stem remains in a dividing condition indefinitely, and thus adds to the diameter of the stem, some of the cells of the periph-. Diagrams showing regions of continued growth in dicotyledonous and monocoty- ledonous plants. The shaded regions are capable of growth. A, a Monocoty- ledon of the grass type, growth taking place at the apices of the stem and roots and at the
. Introduction to botany. Botany. Growth and Movement. II1 is no cambium zone similar to that in dicotyledonous plants; but in such monocotyledonous plants as the Aloe and Yucca (6") a zone of cells near the periphery of the stem remains in a dividing condition indefinitely, and thus adds to the diameter of the stem, some of the cells of the periph-. Diagrams showing regions of continued growth in dicotyledonous and monocoty- ledonous plants. The shaded regions are capable of growth. A, a Monocoty- ledon of the grass type, growth taking place at the apices of the stem and roots and at the bases of the younger nodes; C, a Monocotyledon of the Aloe and Yucca type, the apices of the stem and roots and a zone (/) near the periphery being in a growing state; B, a Dicotyledon, growth taking place at the apices of the stem and roots and at the cambium ring {z). eral zone undergoing the necessary modifications to form new vascular bundles. In such monocotyledonous stems as those of grasses {A), increase in length is also brought about by the division of the cells at the base of each node, which retain the power. 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 Stevens, William Chase, 1861-. Boston, D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1902
