. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. Ftg. 162.—Ncplirodiiiin filix-uias. A, Skeleton of vascular system showing the cylindrical network of steles, with numerous leaf-trace strands arising from the edges of the " leaf-gaps " (original). B, Transverse section of the rhizome (after De Bary). , leaf-bases ; /./., leaf- trace strands ; Scl., sclerenchyma ; St., stcm-stcles. seedling always possesses but a single central strand which, as the plants become older, enlarges and, in forms like Ncphrodinm and Picris, gradually breaks up into
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. Ftg. 162.—Ncplirodiiiin filix-uias. A, Skeleton of vascular system showing the cylindrical network of steles, with numerous leaf-trace strands arising from the edges of the " leaf-gaps " (original). B, Transverse section of the rhizome (after De Bary). , leaf-bases ; /./., leaf- trace strands ; Scl., sclerenchyma ; St., stcm-stcles. seedling always possesses but a single central strand which, as the plants become older, enlarges and, in forms like Ncphrodinm and Picris, gradually breaks up into the separate steles of the adult. The relations 1)etween the \'ascular system of stem and leaf are particularly plain in the Male Fern [Ncplwodiuni). and are easily decii)hered, if its rhizome be allowed to rot, so that all but the hard vascular tissues decay. In the resulting skeleton (Fig. 1(12, .\) the steles form a cylindrical network, in which each. 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 Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
