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 . 265, Scale-bulb of Uxalis violacea. 241. How muUiplied.—Bulbs are renewed or multiplied annually at the approach ofWinter by the development of bulbs from the axils of the scales, which increase at theexpense of the old, and ultimately become de-tached. Bulbs which flower from the terminalbud are necessarily either annual or biennial;those flowering fro
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 . 265, Scale-bulb of Uxalis violacea. 241. How muUiplied.—Bulbs are renewed or multiplied annually at the approach ofWinter by the development of bulbs from the axils of the scales, which increase at theexpense of the old, and ultimately become de-tached. Bulbs which flower from the terminalbud are necessarily either annual or biennial;those flowering from an axillary bud may beperennial, as the terminal bud may in this casecontinue to develop new scales indefinitely. 242. Bulbs are said to be tuni-cated when they consist of con-centric layers, each entire andenclosing all within it, as in theOnion. But the more commonvariety is the scaly bulb—consist-ing of fleshy, concave scales, arranged spirally upon the axis, asin the Lily, 243. The tuber, corm, and bulb are analogous forms approaching by degrees to thecharacter of the bud, which consists of a little axis bearing a covering of scales. In thetuber, the axis is excessively developed, while the scales are reduced to mere linear 6. 265, Bulb of Lilium superbum, with habit ofa rhizome; a, full jrrown bulb sending ixp a^er-minal stem r, and two offsets bl\ for the bulbsof next year. 82 STRUCTUKAL BOTANY. points. In the corm, the analogy is far more evident, for the axis is less excessive andthe scales more manifest; and lastly, in the hulb the analogy is complete, or overdone,the scales often becoming excessive.
Size: 1927px × 1297px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1870
