. British plants : their biology and ecology. Plants; Plant ecology. INFLUENCE OF WATER ON LAND-PLANTS 41 4. The Leaf is thickened either by the increase of the palisade-tissue, or by the development of special water- storing cells. The former is strongly developed in sun- leaves (Fig. 22), the latter tissue is found in succulents. The storage of water in fleshy or succulent organs is very common in desert and strand plants (see p. 277). All parts of the plant exposed to the air may become succulent â â, the leaves in stonecrop (Fig. 7), the stems in glass- wort (Fig. 10). The water is sto
. British plants : their biology and ecology. Plants; Plant ecology. INFLUENCE OF WATER ON LAND-PLANTS 41 4. The Leaf is thickened either by the increase of the palisade-tissue, or by the development of special water- storing cells. The former is strongly developed in sun- leaves (Fig. 22), the latter tissue is found in succulents. The storage of water in fleshy or succulent organs is very common in desert and strand plants (see p. 277). All parts of the plant exposed to the air may become succulent â â, the leaves in stonecrop (Fig. 7), the stems in glass- wort (Fig. 10). The water is stored in a special tissue, the cells of which are large and devoid of chlorophyll; the cell-sap is abundant, clear, but somewhat slimy through the presence of mucilage. The presence of mucilage in. Fig. 9.âTransverse Section of Rolled Leaf of Erica cinerea. (Highly Magnified.) or, cuticle; b, epidermis; c, mucilage in the cells; d, chlorophyll-tissue ; e, vascular bundle ; f, air-space ; g, stoma ; h, hair. water makes its evaporation difficult, and this difficulty is increased by the absence of air - spaces. Lignified tissue in succulents is also poorly developed, and there is little cork, the retention of water within the plant being secured by other means. 5. The Augmentation of Lignified and Corky Tissues. âThis serves in leaves the same end as succulenceâ namely, the retention of water within the plant. No large reserves of water are here stored away for future use ; in fact, the actual water-containing and water- conducting tissue is small; but what there is, is protected Dy masses of sclerenchymaâelongated cells with thick,. 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 Bevis, James Frederick; Jeffery, Henry John. London : A. Rivers
Size: 1973px × 1266px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisher, booksubjectplants
