. A history of British forest-trees, indigenous and introduced. on soils of inferior depth, orwhere the substratum is hard or rocky, for upon such, in con-sequence of its inability when young to protrude to a suffi-cient depth a powerful root which may serve as a counter-poise to the leverage of the plant above ground, it is actedupon by the winds, becomes loosened in its socket, andinclines to one side, whence it is that few Pinasters,when planted upon such soils, are to be seen with a boleperfectly straight and upright near to the ground, a cur-vature being generally perceptible, even in tre
. A history of British forest-trees, indigenous and introduced. on soils of inferior depth, orwhere the substratum is hard or rocky, for upon such, in con-sequence of its inability when young to protrude to a suffi-cient depth a powerful root which may serve as a counter-poise to the leverage of the plant above ground, it is actedupon by the winds, becomes loosened in its socket, andinclines to one side, whence it is that few Pinasters,when planted upon such soils, are to be seen with a boleperfectly straight and upright near to the ground, a cur-vature being generally perceptible, even in trees of consi-derable age and size. This want of lateral roots, also,renders it liable, in districts subject to heavy storms ofwind, to be broken off close by the crown of the root,Avhere we have sometimes observ-ed a kind of imperfect junctionto exist between a portion of thebole and the main root, as expres-sed in the figure. At Twizell,during the tremendous storm ofwind on the 9th of January, 1839,a luxuriant Pinaster upon thelawn, which, at about twenty-two. 440 CONIFERS. years1 growth, had reached a height of thirty-three feetand a circumference of nearly four feet, was hroken offin this manner, and the appearance of the crown of theroot was similar to that represented in the figure. To succeed and become an ornamental tree the Pinasterrequires room and air on every side, and it is, therefore, invain to place it in mixed plantations, as it either dies in itsinfancy, choked by its more hardy and enduring neigh-bours, or lingers for a few years, a feeble and unsightlyobject. Even when planted in masses by itself, the youngtrees, when first put in, ought to stand at least from eightto twelve feet apart, and should afterwards be thinned outas soon as they interfere with or touch each other. Greatly, therefore, as we admire the Pinaster for itsmassive and clustered foliage, its bold form, and the richappearance of its large nut-brown cones, we consider that,upon soils not express
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectforestsandforestry
