Questo libro fornisce una breve panoramica di alberi e arbusti duri in Gran Bretagna, sia nativi che stranieri. Include descrizioni scientifiche e pratiche di varie specie, la loro coltivazione, usi e tecniche di propagazione. Si tratta di una risorsa essenziale per comprendere le specie arbustive e arbustive britanniche.
1361 x 1835 px | 23 x 31,1 cm | 9,1 x 12,2 inches | 150dpi
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. Trees and shrubs : an abridgment of the Arboretum et fruticetum britannicum : containing the hardy trees and schrubs of Britain, native and foreign, scientifically and popularly described : with their propagation, culture and uses and engravings of nearly all the species. Trees; Shrubs; Forests and forestry. 838 ARBORETUM ET FRUTICETUM BRITANNICUM. beat; from the fasces of the Roman llctors, which were always made of birch rods, being used to drive baclc the people. Pliny derives the name from bitumen. Gen. Char., SfC. Barren flowers. Catkins cylindrical, lax, imbricated all round with ternate concave scales the middle one largest, ovate. Corolla none. Filaments 10 to 12, shorter than the middle scale, to which they are attached. Anthers roundish, 2-lobed.—Fertile flowers. Catkins similar but more dense; scales horizontal, peltate, dilated outwards, 3-lobed, 3- flowered. Corolla none. Germen compressed. Styles 2. Stigma simple. Nut oblong, deciduous, winged at each side. (G. Don.) Leaves simple, alternate, stipulate, deciduous; serrated or entire. Flowers whitish, in pendulous catkins. — Trees or shrubs, deciduous, with round slender branches, and the bark in most species in thin membranous layers. Natives of Europe, Asia, and North America. The species are generally found in mountainous rocky situations in the middle of Europe ; but they grow wild in plains and peaty soils in the northern regions. The common birch is one of the hardiest of known trees ; and there are only one or two other species of ligneous plants which approach so near to the North Pole. They all ripen seeds in the climate of London; and are all of the easiest culture in any ordinary soil; but, being hair-rooted, they do not grow so well in very strong clays ; nor do plants of this genus, when raised from layers or cuttings, grow so freely as in the case of most other genera. The leaves of the birch having Httle succulency, and being astringent and aromatic, are very rarely subject to the a
