. Arboretum et fruticetum Britannicum; or, The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described; with their propagation, culture, management, and uses in the arts, in useful and ornamental plantations, and in landscape-gardening; preceded by a historical and geographical outline of the trees and shrubs of temperate climates throughout the world . strobiles ciliated on their uiargins ; sidelobes roundish. (Willd. Sp. PI., iv. p. 463.) This spe-cies, according to Pallas, its discoverer, is cl
. Arboretum et fruticetum Britannicum; or, The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described; with their propagation, culture, management, and uses in the arts, in useful and ornamental plantations, and in landscape-gardening; preceded by a historical and geographical outline of the trees and shrubs of temperate climates throughout the world . strobiles ciliated on their uiargins ; sidelobes roundish. (Willd. Sp. PI., iv. p. 463.) This spe-cies, according to Pallas, its discoverer, is closely alliedto B. alba, and is found along with that species m\Dauria, and part of Asiatic Siberia; but it is not foundin European Siberia, nor in Russia. It does not grow ^so tall as the common birch, and the trunk does not ^exceed 1 ft. in diameter. The bark is grey, cleft longi-tudinally, and divided into brown scales, that have theappearance of being burnt. The branches are moresubdivided, and more upright, than those of B. leaves are broader, commonly smaller, on shorterpetioles, and unequally serrated. The stipules arelanceolate, grey, subpubescent, and deciduous. Themale catkins are produced at the ends of the twigs ofthe foregoing year, two or three together, larger thanin the common birch; the females are on the sametwigs, lateral, thicker, with larger and more roundedscales; the seed, also, is a little longer; but the mem-. CHAP. CIV, liETULA CEA:. liETULA. 1705 1557 brane wliicli surrounds it is narrower. The wood of the tree is hard,and yellower than tliat of the common birch. Pallas says that it differsfrom i/. nigra L. (the red birch of America), in having smaller stipules, andin the leaves being less frequently, and never doubly, serrated; but, as liehad only an opportunity of comparing it with a small dried specimen ofthe American species, of which he has given us a figure, we cannot placemuch confidence in his opinion. The young plants bearing this nam
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectplants, bookyear1854
