. Plant life, considered with special references to form and function. Plant physiology. 326 PLANT LIFE. upjier to the lower side of the leaf may act as reservoirs of water. 442. 3. Tubers and bulbs.âThese forms of the shoot in which the parenchyma is alnindant and richly supplied with water may also be counted, in part at least, as an adaptation for water-storage. 443. III. Halophytes. â 'I'he saltdoving plants are, in most of their characters, strikingly similar to the xero- phytes. This similarity is to be explained probably by the difficulty of securing a suita- ble water supply. They grow
. Plant life, considered with special references to form and function. Plant physiology. 326 PLANT LIFE. upjier to the lower side of the leaf may act as reservoirs of water. 442. 3. Tubers and bulbs.âThese forms of the shoot in which the parenchyma is alnindant and richly supplied with water may also be counted, in part at least, as an adaptation for water-storage. 443. III. Halophytes. â 'I'he saltdoving plants are, in most of their characters, strikingly similar to the xero- phytes. This similarity is to be explained probably by the difficulty of securing a suita- ble water supply. They grow near the ocean, upon the shores of salt lakes, by salt s]irings, and in the interior of the great continents in old lake basins in which the salts have accumulated by the rains. A few of the halophytes are trees and shrubs, with leathery lea\'es, but almost all are succulents. In habit they. Fig 370.âStrip from a vertical section of leaf of Pepei-omiatricJiocar/'ii. .V, fr afresh leaf; w, water-storing tissue, com- â,.â ,-rpnproll v Inn- r,fl,=.n rrpr-i-, posed of the multiple epidermis of the aiCgCncrain lOW , OlieU ClCCp- upper side; «, chlorophvll-bearing cells; â¢,,... , 'jl, 1 fl 1 q .r. spongy parenchj'ma mfth sparse chloro- "'&' ^''^H linck, UCSn) and plasts and much water. J:l, the same after ^ .-,1 + i 4- i four days'transpiration at iS-2o<" c. The morc 01 less translucent leaves tissue 7c'is much collapsed, the walls being t 4. ,1 11 1 j ' â ⢠eforc'. and Stems; the cells large and landt, " ^ "~ thin-walled, containing com- plaited; ,v also shrunken, hut n as bef( Magnified about 50 diam âAfter Haber- paratively little chlorophyll and abundantly supplied with water, with few and small intercellular spaces and the surface generally 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 pe
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectplantphysiology
