قراءة كتاب Wayside and Woodland Trees: A pocket guide to the British sylva

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Wayside and Woodland Trees: A pocket guide to the British sylva

Wayside and Woodland Trees: A pocket guide to the British sylva

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دار النشر: Project Gutenberg
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Turkey Oak (Quercus cerris) is a much larger tree, attaining to similar heights to our British Oak, but easily distinguishable by its more pyramidal outline, and its attenuated leaves. The lance-shaped lobes of these are unequal, sharp, and angular; and the footless acorn-cups are covered with bristly or mossy-looking scales. The acorns, which are small and exceedingly bitter, rarely ripen till their second autumn. The whole tree—trunk, branches, and twigs—is of straighter growth than Quercus robur. It is a native of Southern Europe and the Levant, and was introduced about one hundred and seventy years ago.

The spring rambler in the woods may come upon a party of woodmen stripping young Oaks of their bark, or felling them, whilst cylinders of separated bark rest across poles in the process of drying. This is the industry of barking for the purpose of the tanner. When the Oaks in a coppice are about sixteen years old they are most suitable for this purpose, the bark then containing a larger percentage of tannin than at any other period. The operation is best performed in May, when the sap is in flow, and should be completed between the first swelling of the leaf-buds and the unrolling of the leaves. If the weather is cold and damp the bark will peel the better, provided there is an absence of north or east winds. Before the tree is cut down the bole is stripped, the first ring being taken from just above the roots to a height of two and a half feet above. When the tree is felled, it is cut into lengths and the bark stripped from them; then all branches that are an inch or more in diameter are peeled. The bark is piled to dry for a couple of weeks, and is then broken into small pieces and sent away in sacks.

It is not alone in the use of the bark that the tannic acid of the Oak is made evident; it is to the presence of this that the austerity of the acorn is due, and also the ink-producing properties of certain Oak-galls. Everything connected with

the tree gets a roughness of flavour from this same principle. Even that remarkable fungus, the Vegetable Beef-steak, that may be found on old Oaks in autumn, is impregnated with it.

Prior regards the name Oak (Anglo-Saxon ac) as originally belonging to the fruit, and only later transferred to the tree that produces it. The more obvious explanation (though we know that in etymological and other matters the obvious is not always the true interpretation) is, that acorn (ac-corn) signified the corn or fruit of the ac. Selby tells us that "During the Anglo-Saxon rule, and even for some time after the Conquest, Oak-forests were chiefly valued for the fattening of swine. Laws relating to pannage, or the fattening of hogs in the forest, were enacted during the Heptarchy; and by Ina's statutes, any person wantonly injuring or destroying an Oak-tree was mulcted in a fine varying according to size, or the quantity of mast it produced."

Pl. 8.
Fruit of Beech.

Pl. 9.
Beech—summer.

Pl. 10.
Acorns of Pedunculate Oak.

The Beech (Fagus sylvatica).

We speak of the Oak as the "Monarch of the Woods," and to the Beech the title "Mother of Forests" has been given. To the timber-merchant the Beech has little importance, but the grower of timber freely acknowledges his heavy indebtedness to this nursing mother, for, in the words of Professor Gayer, the Bavarian forestry expert, "without Beech there can no more be properly tended forests of broad-leaved genera, as along with it would have to be given up many other valuable timber-trees, whose production is only possible with the aid of Beech." Quite apart from utilitarian considerations, we should be very sorry to lose the Beech, with its towering, massive shaft clad in smooth grey bark, its spreading roots above the soil, and the dense shade of its fine foliage. Fortunately for the lover of natural beauty, it is this luxuriant growth of leaves and the shade it gives that are the redeeming virtues of the Beech

in the eye of the forester. Its drip destroys most of the soil-exhausting weeds, its shade protects the soil from over-evaporation, and the heavy crop of leaves enriches it by their decomposition. On these points the forestry experts of to-day join hands with John Evelyn, who, nearly 250 years ago, thus referred to it—"The shade unpropitious to corn and grass, but sweet, and of all the rest, most refreshing to the weary shepherd—lentus in umbra, echoing Amaryllis with his oaten pipe." And, again, after giving us a long catalogue of the varied uses to which Beechwood may be put, he adds—"Yet for all this, you would not wonder to hear me deplore the so frequent use of this wood, if you did consider that the industry of France furnishes that country for all domestic utensils with excellent Walnut, a material infinitely preferable to the best Beech, which is indeed good only for shade and for the fire." In the days of open hearths and chimney corners the Beech was extensively used for fuel, and it is still reputed to make good charcoal; but to-day the chairmaker and the turner are the chief users of its wood.

Pl. 11.
Bole of Beech.

The Beech well grown attains a height of about 100 feet, and a girth of 20 feet. There was, until recently, a Beech in Norbury Park, Surrey, 160 feet in height. Its branches horizontally spreading gave it a head of enormous proportions. Hooker gives the diameter of the Knowle Beech as 352 feet, which means a circumference of about as many yards. It will grow in most upland places where the Oak thrives, though it does not need so deep a soil, and has a preference for land containing lime. Fresh mineral soils, rich in humus, are the best for it. In poor soils its growth is slow and its life is longer. It begins to bear mostly at about eighteen years of age, and thereafter gives good crops at intervals of three or five years.

In spring, just before the buds expand, the twigs of the Beech have a very distinct appearance. They are long and slender, placed alternately along the twig, and the brown

envelopes retain their shape long after they have been cast off. It is interesting to note how well these are mimicked by a glossy spindle-shaped snail (Clausilia laminata) that has a decided fondness for the Beech. As the snails crawl up the bole or over the moss at its base, it is not easy at a glance to say which are snails and which bud-envelopes. This is one of the protective resemblances adopted by many animals to give them a chance of eluding their natural enemies—in this case the thrush and other birds.

In the bud the leaf is folded fan-wise, and the folds run parallel with the nerves. They expand into an oval, smooth-faced leaf, with slightly scooped edges, and a most delicate

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