. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. 80 THE LEAF the dissected or the slender conformation; in so far as the water supports tlie weiglit, to tliat extent a compact and rigid framework is rendered unnecessary. He compares such leaves as tliose of Cabomba (Fig. 64) to the gills of fishes, which while in water float apart, but have not enough strength to support their own weight, and consequently collapse in air. 133. Finally^ it is evident that in
. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. 80 THE LEAF the dissected or the slender conformation; in so far as the water supports tlie weiglit, to tliat extent a compact and rigid framework is rendered unnecessary. He compares such leaves as tliose of Cabomba (Fig. 64) to the gills of fishes, which while in water float apart, but have not enough strength to support their own weight, and consequently collapse in air. 133. Finally^ it is evident that in running water and in waves the slender forms give readily to the movements of the water, and are therefore less likely to be torn than broader forms would be. 134. Floating leaves show as pronounced a tendency to become circular as the submerged ones to become linear. The circle, or ellipse, may be complete with the leaf stalk. 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 Leavitt, Robert Greenleaf, 1865-1942; Gray, Asa, 1810-1888. Field, forest, and garden botany. New York, American Book Co
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
