. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. 96 ELEMENTS OP STRUCTURAL BOTANY. ' Fig. 124. growth. Bean, or it may branch at an early stage into numerous similc«r threads, and so form a fibrous root, as in Buttercup. 133. Tap-roots receive different names according to the particular shape they happen to assume. Thus, the Carrot (Fig. 124) is conical, because from a broad top it tapers gradually and regularly to a point. The Radish, bein
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. 96 ELEMENTS OP STRUCTURAL BOTANY. ' Fig. 124. growth. Bean, or it may branch at an early stage into numerous similc«r threads, and so form a fibrous root, as in Buttercup. 133. Tap-roots receive different names according to the particular shape they happen to assume. Thus, the Carrot (Fig. 124) is conical, because from a broad top it tapers gradually and regularly to a point. The Radish, being somewhat thicker at the middle than at either end, is spindle- shaped. The Turnip, and roots of similar shape, are napiform {napms, a turnip). These fleshy tap-roots belong, as a rule, to biennial plants, and are designed as storehouses of food for the plant's use during its second year's Occasionally fibrous roots also thicken in the same manner, as in the Peony, and then they are said to be fasciclea or clustered. (Fig. 125). 134. But you must have observed that plants some- times put forth roots in addition to those develop- ed from the embryo of the seed. The Verbena of our gardens, for example, will take root at every joint if the stem be laid upon the ground (Fig. 126). The runners of the Strawberry take root at their extremities; and nothing is more familiar than that cuttings from various plants will make roots for themselves if put into proper soil, and supplied with warmth and Fig. Tap-root of Carrot. Fig. 125.—Fascicled roots of 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, booksubjectpl
