. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. OEGANOG-EAPHY AND GLOSSOLOGY. THE ROOT, The roo
. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. OEGANOG-EAPHY AND GLOSSOLOGY. THE ROOT, The root (radix) is that part of the plant which tends towards the centre of the earth; it is not coloured green, even when exposed to light, and rarely produces leaves or shoots. It serves to &i the plant in the earth, and to draw thence the nourishment necessary to its growth. The root is absent in certain plants, which, from growing upon and drawing their nourishment from others, are called parasites (p. parasitica}). Such is the Mistleto, which fixes itself beneath the bark of certain trees by the dilated base of its stem. The root may be simple, or irregularly branched. Its axis or branches termi- nate in delicate fibrils, which together are termed the root-fibres {fibrilloe); the. 24. Can-ofc. 25. Meadow-grass. Tapering root. Fibrous root. 26. Dropworfc. Nodose root. 27. Dahlia, Tuberous root. 28. Orchis. Mbrous-tuberous root. tips of these fibres, being soft, loose, and cellular, are named spongioles (spongiolce). The individual fibrils die annually, like leaves, and fresh ones spring from the youngest parts of the root. Roots with a single, descending, vertical stock, are called tap-roots [r. perpen- dicularis) ; their main trunk or tap may branch {Stock, fig. 1), or remain nearly simple'(Corroi, figi 24). Sometimes the original, usually simple, tap-root perishes soon after germination, and is replaced by a bundle of fibrils, which spring from. Please note that these image
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1873
