. Foundations of botany. Botany; Botany. STRUCTURE OF THE STEM 99 about naturally by the branches of a tree chafing against one another until the bark is worn away and the cambium layer of each i§ in contact with that of the other, or two separate trees may be joined by natural grafting, as is shown in Fig. 70. 110. Stem-Structure of Climbing Shrubs. — Some of the most remark- able kinds of dicotyle- donous stems are found in climbing shrubs. The structure of many of these is too complicated to be discussed in a botany for beginners, but one point in regard to them is of much inter- est. The b
. Foundations of botany. Botany; Botany. STRUCTURE OF THE STEM 99 about naturally by the branches of a tree chafing against one another until the bark is worn away and the cambium layer of each i§ in contact with that of the other, or two separate trees may be joined by natural grafting, as is shown in Fig. 70. 110. Stem-Structure of Climbing Shrubs. — Some of the most remark- able kinds of dicotyle- donous stems are found in climbing shrubs. The structure of many of these is too complicated to be discussed in a botany for beginners, but one point in regard to them is of much inter- est. The bundles (as seen in the clematis and shown in Fig. 56) are much more distinct than in most other woody stems. Even after sev- eral years of growth the wood is often found to be arranged iu a number of flattish twisted strands. It is evident that this is for the sake of leaving the stem flexible for twining purposes, just as a wire cable is adapted to. be wound about posts or other supports, while. Fig. 70. - Two Asli Trees naturally grafted 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.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
