. Elements of botany. Plants. STRUCTURE OF THE STEM. 63 After the inter-spaces between the first fibro-vascular bundles have become filled up with wood, the subsequent growth must take place in the manner shown in Fig. 53. The cambium of the original wedges of wood, fc^ and the cambium, ic, formed between these wedges, continues to grow from its inner and from its outer surface, and thus causes a permanent. Fio. 53. —Diagram to illustrate Secondary Growth in a Dicotyledonous Stem. R, the first-formed bark ; p, mass of sieve-cells ; \fp, mass of sieve-cells between the original wedges of wood ;
. Elements of botany. Plants. STRUCTURE OF THE STEM. 63 After the inter-spaces between the first fibro-vascular bundles have become filled up with wood, the subsequent growth must take place in the manner shown in Fig. 53. The cambium of the original wedges of wood, fc^ and the cambium, ic, formed between these wedges, continues to grow from its inner and from its outer surface, and thus causes a permanent. Fio. 53. —Diagram to illustrate Secondary Growth in a Dicotyledonous Stem. R, the first-formed bark ; p, mass of sieve-cells ; \fp, mass of sieve-cells between the original wedges of wood ; /c, cambium of wedges of wood ; ic, cambium between wedges; 6, groups of bast-cells; fli, wood of the original wedges ; \fh, wood formed between wedges ; x, earliest wood formed ; M, pith. increase in the diameter of the stem and a thickening of the bark, which, however, usually soon begins to peel off from the outside and thus soon attains a pretty constant thickness.^ 86, Grafting. — When the cambium layer of any vigor- ously growing stem is brought in contact with this layer in 1 See Gregory's Plant Anatomy, Chapter A'' 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; Bergen, Joseph Y. (Joseph Young), 1851-1917. Bergen's Botany: key and flora, Pacific coast ed. Boston : Ginn
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1896
