. 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. XIU. JCERX^C^M : ^^CER. 87 Seedhng. In Hayne's Dendrologische Flora there are, also, the following va- rieties : A. P. stenoptera, A. P. maci-optera, and A. P. microptera, which differ in the proportions of the wings of the keys, and do not appear worth farther notice. In all seed beds a
. 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. XIU. JCERX^C^M : ^^CER. 87 Seedhng. In Hayne's Dendrologische Flora there are, also, the following va- rieties : A. P. stenoptera, A. P. maci-optera, and A. P. microptera, which differ in the proportions of the wings of the keys, and do not appear worth farther notice. In all seed beds and young plantations some of the plants will be found with the petioles and the buds red, and others with the petioles and the buds greenish yellow : such trees, when of considerable size, are very distinct in their general asi)ect, when in bud, and when they have newly come into leaf; but after midsummer, when the leaves are fully matured, and begin to get rusty, the trees are scarcely distinguishable. Different plants also differ much in the time of their coming into leaf, and of drop- ping their leaves ; and some of the more remarkable of these it might be worth while to propagate by extension. '^S^. 152. ^*cer FseAdo-Pldtanus. The growth of the common sycamore is very rapid compared with that of most other species of ^'cer, particularly when it is in a deep, free, rich soil, and in a mild climate. It arrives at its full growth in 50 or 60 years ; but it requires to be 80 or 100 years old before its wood arrives at perfection. In marshy soil, or in dry sand, and even on chalk, the tree never attains any size. It produces fertile seeds at the age of 20 years, but flowers several years sooner; sometimes even perfecting its seeds sooner also. The longevity of the tree is from 140 to 200 years, though it has been known of a much greater age. The wood weighs per cubic foot, newly cut, 64 lb. ; half-dry, 56 lb.; dry, 48 lb. It loses, in drying, about a twelfth part of its bulk. Wh
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectforestsandforestry
