. Practical botany. Botany. 74 PEACTICAL BOTAJ^Y part of the plant body, with its terminal bud or sometimes lateral buds, is comparatively safe from extremes of cold or dryness, and serves to carry the life of the plant over from one growing season to another. 66. Water storage in stems. All living stems of plants con- tain water, and in the case of plants ex- posed to long peri- ods of drought the water stored in the stem may be abso- lutely necessary to tide over the rainless months. Some cacti and other succulent desert plants con- tain enough water to make it possible for men and other ani
. Practical botany. Botany. 74 PEACTICAL BOTAJ^Y part of the plant body, with its terminal bud or sometimes lateral buds, is comparatively safe from extremes of cold or dryness, and serves to carry the life of the plant over from one growing season to another. 66. Water storage in stems. All living stems of plants con- tain water, and in the case of plants ex- posed to long peri- ods of drought the water stored in the stem may be abso- lutely necessary to tide over the rainless months. Some cacti and other succulent desert plants con- tain enough water to make it possible for men and other animals to drink from them when they are cut open. The amount of water stored in some desert plants is sufficient to carry on growth and reproduction for ten years or more with- out renewal from outside sources. The trunks of certain South American trees are so swollen as to constitute something like aerial tubers,. Fig. 61. Lengthwise section tliroiigh a young hyacinth plant si, the cushion-shaped stem at the hase of the bulh; 6, the young bulb from which the next year's growth would proceed; sc, bulb scales; , flower stalk. Reduced. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917; Caldwell, Otis William, 1869- joint author. Boston, New York [etc. ] Ginn and company
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