. Plants and their uses; an introduction to botany . Fig. 60.—Onion. (Allium Cepa. Lily Family, Liliacece). A, bulb at thebfginning of the second years growth (I) cut to show the short stemfrom which roots spring below, and, above, last years leaves of whichthere remain only the thickened bases forming the coats of the onionand filled with food now being used up by the new leaves developingfrom a bud at the center. B, upper part of a leaf cut to show its tubularform. C, plant toward the end of its second year (J); the upper (oncegreen) part of the leaves having withered, are replaced by a gree
. Plants and their uses; an introduction to botany . Fig. 60.—Onion. (Allium Cepa. Lily Family, Liliacece). A, bulb at thebfginning of the second years growth (I) cut to show the short stemfrom which roots spring below, and, above, last years leaves of whichthere remain only the thickened bases forming the coats of the onionand filled with food now being used up by the new leaves developingfrom a bud at the center. B, upper part of a leaf cut to show its tubularform. C, plant toward the end of its second year (J); the upper (oncegreen) part of the leaves having withered, are replaced by a greenhollow stem (shown cut at D) which bears a cluster of whiteflowers, and finally the fruit. (A, original; B, C, D redrawn fromReichenbach.) 64 VARIOUS FOOD-PLANTS. Fig. G1.—Onion. .4, flower, onlargid. B, three .stamens, showing theirunequal size, and connection at the base. C, young pod. D, the samecut across to show the three compartments and their seeds. E, dry podsplit open naturally to release the seeds. (Redrawn from Reichenbach.)
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
