. The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union. Botany; Botany. 08 STRUCTURAL BOTANY. ical. To all these forms the general name tap-root is applied. The ramous is the woody tap-root of most trees and shrubs, where the main-root branches extensively, and is finally dissolved and lost in multiplied ramifications. 203. Tuberous tap-roots. In herbaceous plants the tap- root often becomes thick and flesh
. The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union. Botany; Botany. 08 STRUCTURAL BOTANY. ical. To all these forms the general name tap-root is applied. The ramous is the woody tap-root of most trees and shrubs, where the main-root branches extensively, and is finally dissolved and lost in multiplied ramifications. 203. Tuberous tap-roots. In herbaceous plants the tap- root often becomes thick and fleshy, with comparatively few branches. This tendency is peculiarly marked in biennials (§ 41), where the root serves as a reservoir of the superabundant food which the plant accumulates during its first year's growth, and keeps in store against the exhausting process of fruit-bearing in its second year. Such is the Fusiform (spindle-shaped) root— thick, succulent, tapering downward, and also for a short space upward. Beet, Kadish, and Ginseng are examples. The Con- ical root tapers all the way from the coUum downward (Carrot). The jVc(pi/o7'm (turnip-shaped) swells out in its upper part so that its breadth equals or exceeds its length, as in Erigenia (235) and Turnip (239).. 204. The forms of inaxial roots are fibrous, fibro-tuber- ous, tubercular, coralline, nodulous, and moniliform. The Jibroiis root consists of numerous thread-like divisions, sent ofi" directly from the base of the stem, with no main or tap root. Such are the roots of most Grasses, which multiply their fibres excessively in light sandy soils. Fihro-tiiberoiis roots (or fasciculate) are. 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 Wood, Alphonso, 1810-1881. Chicago, A. S. Barnes
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1870
