. A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures. Botany; Botany, Economic; 1855. 4-14 IIiyXOKY OF THE VEGETABLE KINGDOM. rcbt'iiiblus in its form, tliough not iu its foliage, is the cypress. The balsam poplar is a moderate sized conical tree, a native both of Siberia and America: the buds of this tree, from autumn to the leafing sea- son, are covered with a quantity of a glutinous yellow balsam, which often collects int
. A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures. Botany; Botany, Economic; 1855. 4-14 IIiyXOKY OF THE VEGETABLE KINGDOM. rcbt'iiiblus in its form, tliough not iu its foliage, is the cypress. The balsam poplar is a moderate sized conical tree, a native both of Siberia and America: the buds of this tree, from autumn to the leafing sea- son, are covered with a quantity of a glutinous yellow balsam, which often collects into drops, and is pressed from the tree for medical use. 'J'his balsam is brought to Europe from Canada iji shells. It is smooth, of an even texture, yel- low colour, and fragrant scent, not unlike the flavour of Tolu balsam. In Siberia a medicated wine is prepared from the buds, which is diuretic, and esteemed by the inhabitants as serviceable in scurvy. The grouse and other game birds feeding on these buds during winter, acquire a flavour which is much esteemed by epicures. All the poplars are very easily raised from cuttings: they prefer a moist soil, and are of a very rapid growth, but do not last long. The chief species and varieties are thus dis- tinguished. JVliite Poplar (p. alba), with roundish leaves, angularly indented, and downy on the under side; trunk straight, and covered with a smooth whitish bark. A variety with larger leaves is called the abele poplar. Black Poplar (p. nigra), with pointed, ser- rated leaves; shaped like the letter delta, Ji, and smaller than those of the former tree. Lomhardy Poplar (p. dilatata), with leaves smooth on each side; pointed, serrated, and del- told, broader than long. Branches in form of a cone. Aspen, or Trembling Poplar (p. tremula), with roundish, broadly toothed leaves, smooth on both sides; leafstalks compressed, and long and slender, moving with the least breath of wind. Balsam Poplar (p. halsamifera), with oval pointed leav
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