. Botany of the living plant. Botany; Plants. [&J BOTANY OF THE LIVING PLANT 0f tlu- 1 irge Dumber of the strands, and their slight irregularities ; and this is lUa I ^cotyledons. But in the case of Clematis only three , enter into the construction, so that the method appears clearer : and still more so in Lamium, where there are only two. There are other points of wide application illustrated in these cases. The stems are fluted, with projecting angles, and one strap of mechanical tissue is seated in each. This gives added strength on the principal of the fluted column, the depth of each
. Botany of the living plant. Botany; Plants. [&J BOTANY OF THE LIVING PLANT 0f tlu- 1 irge Dumber of the strands, and their slight irregularities ; and this is lUa I ^cotyledons. But in the case of Clematis only three , enter into the construction, so that the method appears clearer : and still more so in Lamium, where there are only two. There are other points of wide application illustrated in these cases. The stems are fluted, with projecting angles, and one strap of mechanical tissue is seated in each. This gives added strength on the principal of the fluted column, the depth of each girder being thereby increased. The second point is that one of the stronger vascular strands is opposite each of the mechanically strengthened ridges, so that the construction of the stem, as it grows older and the vascular strands become mechanically more effective, resembles that of a number of peripheral girders. Fig. 117. Transverse section of stem of Lam ium, showing projecting angles of collen- rhyma (dotted), opposite four larger ularstrands: an arrangement equi- disposed in a ring. This method is seen* ,n to two crossed girders. (xi/,MS I he Stem thus assumes at last the type of {Eleocharis) , showing four large iv. i;j 1 T , . girders, with smaller and less perfect girders the solid column. In large tropical trees between them. Centrally is a large cavity. a further mechanical device is often seen Thc dotted areas indicate thin-walled , . water-storage tissue. (x 62.) at the base. By unequal thickening broad flanges are produced, which radiate outwards, and act in support like thr 1,ult: ,f a Gothic tower. The final result of such development might be compared with the outline of the greatly widened base of the Eiffel 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 Bow
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Keywords: ., bookcentury1900, bookpublis, booksubjectbotany, booksubjectplants
