. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 126 MINUTE STRUCTURE OF THE STEM. of the fascicles, and they curve considerably in their course, so that it is often dif- ficult to follow the foliar trace for more than a short dis- tance. If the stem has alter- nate leaves, the direction of the foliar traces will of course be different from that in a stem with opposite or verti- cillate arrangement of the leaves. The following figures exhibit the course and dis- tribution in a few eases : â In the leafy shoo
. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 126 MINUTE STRUCTURE OF THE STEM. of the fascicles, and they curve considerably in their course, so that it is often dif- ficult to follow the foliar trace for more than a short dis- tance. If the stem has alter- nate leaves, the direction of the foliar traces will of course be different from that in a stem with opposite or verti- cillate arrangement of the leaves. The following figures exhibit the course and dis- tribution in a few eases : â In the leafy shoot of Clem- atis, Fig. 102, the leaves, are opposite and decussate. From each leaf there descend three fibro-vascular bundles ; for instance, at the lower node there are a, b, c, and e, /, d. The leaves at the node next above decussate with those below ; each of them has three fibro-vascular bundles, respectivelj-, i, gr, I, and k, h, m, which become somewhat smaller as the}' de- scend to the next node, where they be- come blended with the bundles there. An examination of the third node shows that the two leaves there contribute bun- dles to the axial cyl- â "" inder; there is again a blending of the bundles at the node ai c- Fig. 102. Diagrammatic view of a leafy stem of Clematis, showing the arrangement of the fibro-vascular bundles; a, 6, c, â e, /, rf, the fascicles from the lower pair of leaves; »i ff) ^ â *i *> â¢> tbe fascicles from the second pair of leaves; g, /â , s, âp, n, <j, the. 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 Goodale, George L. (George Lincoln), 1839-1923. New York [etc. ] : American Book Co.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
