. Foundations of botany. Botany; Botany. Fig. 220. — The Duckweed, a Floating Aquatic Plant. (Sect. 368), we must consider that xero- phytes are highly spe- cialized and modified forms adapted to ex- tremely trying condi- tions of life. A typical xerophyte is one which can live in a very dry soil in a nearly rain- less region. The yucca in Plate VII and the melon-cactus (Fig. 49) are good examples of such plants. Less extremely xerophytic are plants like the date-palm (Fig. 54), which flourishes in the oases of the Sahara, where the soil is moist from the presence of springs, though rains are
. Foundations of botany. Botany; Botany. Fig. 220. — The Duckweed, a Floating Aquatic Plant. (Sect. 368), we must consider that xero- phytes are highly spe- cialized and modified forms adapted to ex- tremely trying condi- tions of life. A typical xerophyte is one which can live in a very dry soil in a nearly rain- less region. The yucca in Plate VII and the melon-cactus (Fig. 49) are good examples of such plants. Less extremely xerophytic are plants like the date-palm (Fig. 54), which flourishes in the oases of the Sahara, where the soil is moist from the presence of springs, though rains are almost unknown, or the houseleeks. and stonecrops found in many gar- dens, the so-called Spanish moss (Plate IV), and lichens (Figs. 198, 199), all of which grow most rapidly in moist air, but cling to bare rocks and trunks of trees, from which they get no water. A xerophyte must be capable of storing water and tran- spiring very slowly, like cactuses, aloes, stonecrops, and such fleshy plants 1 Fieui Fio. 221. —Leaf of an Fast Indian Fig Tree,' with a Slender Taper- ing Point to drain off 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; Eastwood, Alice, 1859-1953. Boston, Ginn & Co.
Size: 1030px × 2425px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
