. 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, OB DESCENDING AXIS. 185. The cirehous roots of certain climbing vines (Euro- pean ivy, poison ivy, trumpet- creeper) put fortli in great numbers from the stem, serv- ing for its mechanical support and no other known use. Again, 136. The fulcra of certain undogenous plants oiiginate high up the stem, and descend- ing obliquely, enter the soil. Of this kind fiTo the roots of the screvc-pine (Panda- nus) of the con
. 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, OB DESCENDING AXIS. 185. The cirehous roots of certain climbing vines (Euro- pean ivy, poison ivy, trumpet- creeper) put fortli in great numbers from the stem, serv- ing for its mechanical support and no other known use. Again, 136. The fulcra of certain undogenous plants oiiginate high up the stem, and descend- ing obliquely, enter the soil. Of this kind fiTo the roots of the screvc-pine (Panda- nus) of the conservatories, which are often several feet in length before reaching the ground. The figure represents a screw- pine which was wholly propped up by i-oots of this kind as if on stilts. Sim- ilar roots occur, in a smaller way, at the lower joints of the Indian corn. 131. TheBantan Tebe (Ficus ludica) develops ; 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 the soil, theso roots become supporting columns. The branches. 35. Screw-pine (Pandanna).. 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, bookpublisher, booksubjectbotany
