. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada. Botany; Botany; Botany. 28 THE ROOT, OR DESCENDING AIM, 135. The cirrhous roots of certain climbing vines (Euro- pean ivy, poison ivy, trumpet- creeper) put forth in great numbers from the stem, serv- ing for its mechanical support and no other known use. Again, 136. The fulcra of certain endogenous plants originate high up the stem, and descend- ing obliquely, enter the soil. Of this kind arc the roots of the screw-pine (Panda- nus) of the conservat
. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada. Botany; Botany; Botany. 28 THE ROOT, OR DESCENDING AIM, 135. The cirrhous roots of certain climbing vines (Euro- pean ivy, poison ivy, trumpet- creeper) put forth in great numbers from the stem, serv- ing for its mechanical support and no other known use. Again, 136. The fulcra of certain endogenous plants originate high up the stem, and descend- ing obliquely, enter the soil. Of this kind arc the roots of the screw-pine (Panda- nus) of the conservatories, which are often ml feet in length before reaching the ground. The figure represents a screw- pine which was wholly propped up by roots of this kind as if on stilts. Sim- ilar roots occur, in a smaller way, at the lower joints of the Indian corn. 137. The Banyan Tree (Ficus Indica) develops adventitious roots on a grand scale. "When the branches have stretched out so far as to need ad- ditional support, they send forth adventitious roots, descending to the earth. Hav- ing penetrated the soil, these roots become supporting columns. The branches. 35. Screw-pine (Pandanus).. 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 Wood, Alphonso, 1810-1881. New York : A. S. Barnes & Burr
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectbotany, bookyear1861
