American Forest Trees Part 54

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(_Arbutus Menziesii_)

Madrona is an interesting tree which ranges from British Columbia southward to central California, attaining its greatest development in the redwood forests of northern California, where trees are sometimes one hundred feet high and six or seven feet in diameter. It is not only an interesting tree itself, but it has many interesting relatives, some of which are trees, others shrubs, and still others only small plants or vines. It may be called a second cousin to the common huckleberry, the mountain laurel, trailing arbutus, the azaleas, the tiny wintergreen, and the great rhododendron. It has some poor relations, but many that are highly respectable. It belongs to the heath family, of which there are seventy genera, and more than a thousand species; but less than half of them are in America, the others being scattered widely over the world.

The madrona, when at its best, is one of the largest members of the family; but it is not always at its best. It sometimes degenerates into a sprawling shrub, where it grows on poor ground and on cold, dry mountain tops. It is manifestly not fair to study any tree at its worst, and it is particularly not fair to the madrona, which varies so greatly in its appearance. At one place it may be scarcely large enough to shade the lair of a jackrabbit, and at another it spreads its branches wide enough to shade an army--a small army, however, say, about two thousand men. A tree of that size may be found within a few hours' ride of San Francisco. Its branches cover an area of from eight thousand to ten thousand square feet.

When madrona grows in the open it throws out wide limbs like a southern live oak, though not so large or long. Its crown is rounded and graceful; but when it grows in forests, where other trees crowd it, the trunk rises straight up to lift the crown into the sunlight and fresh air. The madrona is seen in all its glory in northwestern California, where it catches some of the warmth and the moist air from the Pacific.

It follows the ranges of the Siskiyou mountains eastward near the boundary of California and Oregon. It is usually mixed with other forest trees, but sometimes large stands nearly pure are encountered, and there the long trunks, rather gray near the ground, but wine-colored above, rise in imposing beauty and are lost in the evergreen crowns.



The leaves suggest those of laurel, but are broader. The large cl.u.s.ters of white flowers are among the glories of the vegetable kingdom. George B. Sudworth, dendrologist of the United States Forest Service, who usually describes in strictly prosaic terms, breaks away from that habit long enough to compare madrona flowers to lilies of the valley, in his "Forest Trees of the Pacific Slope." The flowers appear from March to May, depending on lat.i.tude and elevation.

The brilliant orange-red fruit ripens in the fall, and is often borne in great abundance. It renders the crowns of the trees very beautiful. The fruit is about half an inch long and contains many small angular seeds.

The fruit is said to contain a substance which puts to sleep wild creatures that feed on it. The claim is probably mythical, for birds breakfast extravagantly on it in the morning, and apparently do not do any sleeping until after sunset.

This tree was discovered by and named for Archibald Menzies, a Scotch botanist who traveled in the Northwest more than a hundred years ago. It has several local names, among them being madrove, laurel wood, madrone-tree, laurel, and manzanita. The last is the proper name of another small tree which is a.s.sociated with madrona and is closely related to it.

The wood weighs 43.95 pounds per cubic foot. It is a little below eastern white oak in fuel value, a little above it in strength, and somewhat under it in stiffness. The color is pale reddish-brown, resembling applewood in tone, but generally not quite so dark. The wood is porous, but the pores are very small. Medullary rays are numerous but thin. On account of the rays being of a little deeper red than the other wood, quarter-sawed stock is handsome and of somewhat peculiar appearance. The figure is much like quarter-sawed beech, but of deeper, more handsome color. The contrast between springwood and summerwood is not strong, though easily seen. Generally, the summerwood const.i.tutes about one-fourth of the annual ring. The tree grows slowly, but with much irregularity. The increase in one season may be four or five times as great as in another. The bark exfoliates, and is quite thin.

Madrona has never been put to much use. Difficulties in seasoning it have stood in the way. The wood warps and checks. Similar difficulties with other woods have been overcome, and such troubles should not be unduly discouraging. The beauty of the wood is unquestioned. It presents a fine appearance when worked into furniture, particularly in small panels and turned work, like spindles, k.n.o.bs, and small posts. When made into grills it shows a surprising richness of tone. The wood polishes almost to the smoothness of holly. Small quant.i.ties are made into flooring; a little goes to the furniture makers; lathes turn some of it for novelties and souvenirs; fuel cutters sell it as cordwood; and tanbark peelers cut the trees for the thin, papery bark. In that case the trunks are left to decay, unless they happen to be convenient to a cordwood market.

One of the most extensive uses for the wood of madrona is for charcoal burning. Blacksmiths buy it because it is cheaper than coal, and some is used in shops where soldering and welding are done; but the most exacting demand comes from gunpowder manufacturers. They find this wood almost equal to alder and willow as a source of charcoal suitable for powder.

MEXICAN MADRONA (_Arbutus xalapensis_) might properly be called Texas madrona as it occurs in that state and probably in no other, but its range extends southward into Mexico. It produces a poorly shaped trunk seldom much more than twenty feet high and one foot in diameter, and usually divided into several branches near the ground. It blooms in March and ripens its fruit in midsummer. The tree is found on dry limestone hills, and in the valley of the Rio Blanco, and among the Eagle mountains. Cabinet makers in Texas put the wood to rather exacting uses after they have carefully seasoned it to overcome its natural tendency to check. It is very hard; its color is a little lighter than applewood which it resembles; annual rings are scarcely visible, so regular and even is the year's growth. In Texas the wood is made into plane stocks, tool handles, and mathematical instruments.

ARIZONA MADRONA (_Arbutus arizonica_) has a restricted range on the Santa Catalina and Santa Rita mountains of southern Arizona, where it ascends to an alt.i.tude of 8,000 feet. The species extends southward into Mexico. The largest trees attain a height of fifty feet and a diameter of two. Trunks are usually straight and shapely, and show the thin, red bark common to the genus. The wood resembles that of the species in Texas, and doubtless is suited to the same purposes, but no utilization of it has been reported, except for fuel, and for fences and sheds on mountain ranches. When the region becomes more thickly settled, the value of the wood will be appreciated.

MANZANITA (_Arctostaphylos manzanita_) is not generally welcomed by botanists into the tree cla.s.s. They say it is too small; but it is as large as some of the laurels which go as trees without question, and is shaped much like them. There are several species of manzanita. The word is Spanish and means "little apple." The name is natural, for one of the most noticeable things about manzanita is the fruit, the size of well-grown huckleberries. It is shaped like an apple, and its tart taste suggests that fruit. The Digger Indians along the foothills of the Sierra Nevada mountains in California gather the berries by the sack, dry them, and keep them for winter--if they can. It is often impossible to keep them because, like other fruit, they are apt to become wormy. When the Indians discover them in that condition they display rare thrift and economy for savages, by soaking the fruit and pressing out the juice, which is said to pa.s.s for a pretty fair quality of cider, but it must be quickly consumed or it will mother and change to vinegar. Indians now put the berries to use less frequently than in early times when they were nearly always hungry.

Manzanita is of the same family as madrona. Its range extends along the mountains of the Pacific coast ranges from Oregon to Mexico, and inland to Utah. The largest trees are about twenty feet high and a foot or less in diameter; very much divided and branched, with limbs crooked in more ways, perhaps, than those of any other representative of the vegetable kingdom. Thousands of canes are cut from the branches, and if any living man ever saw a straight one he failed to report it. Manzanita grows in almost impenetrable thickets on dry slopes and ridges. Its thin foliage casts so pale a shadow that the tree's shade is little cooler than the boiling sun upon the open naked ground and rocks. The bark is a reddish-chocolate color, and exfoliates in scales of papery thinness. The heart is nearly of the same color as the bark, but the sap is white and very thin. The wood is hard, strong, stiff, but exceedingly brittle. If a branch is sharply bent it will fly into splinters.

The uses of the wood are numerous, but the total quant.i.ty demanded is moderate. Novelty stores sell small articles to tourists in California, sometimes pa.s.sing the wood off as mountain mahogany which does not so much as belong to the same family. The most common articles manufactured by novelty shops from manzanita are canes, paper weights, paper knives, rulers, spoons, napkin rings, curtain rings, cuff b.u.t.tons, dominos, manicure sticks, jewel boxes, match safes, pin trays, and photo frames.

[Ill.u.s.tration]

COTTONWOOD

[Ill.u.s.tration: COTTONWOOD]

COTTONWOOD[9]

(_Populus Deltoides_)

[9] The following species grow in the United States: Cottonwood (_Populus deltoides_), Aspen (_Populus tremuloides_), Largetooth aspen (_Populus grandidentata_), Swamp Cottonwood (_Populus heterophylla_), Balm of Gilead (_Populus balsamifera_), Lanceleaf Cottonwood (_Populus ac.u.minata_), Narrowleaf Cottonwood (_Populus angustifolia_), Black Cottonwood (_Populus trichocarpa_), Fremont Cottonwood (_Populus fremontii_), Mexican Cottonwood (_Populus mexicana_), Texas Cottonwood (_Populus wislizeni_).

Eleven species of cottonwood are found in the United States, if all trees of the genus _Populus_ are cla.s.sed as cottonwoods. It is not universally admitted, however, that they should be so cla.s.sed. The common cottonwood is the most widely known of all of them, but it is recognized under different names in different regions, viz.: Big cottonwood, yellow cottonwood, cotton tree, Carolina poplar, necklace poplar, broadleaf poplar, and whitewood.

Its range covers practically all of the United States east of the Rocky Mountains. It is rare or missing in eastern New England and southern Florida, and most abundant in the Mississippi valley, and there the largest trees are found. Some exceed 100 feet in height, and four in diameter. Extreme sizes of 140 feet in height with diameters of from seven to nine have been reported. The cottonwood was a frontier tree on the western plains when settlers began to push into the region. It grew as far west as any hardwood of the eastern forests, and was found beyond meridian 100, which was supposed to be the boundary between the region of rains and the semi-arid country. The cottonwood clung to the river banks and to islands in the rivers, and by that means escaped the Indian's prairie and forest fires which he kindled every year to improve the range for the buffalo. It is supposed that most of the open country east of meridian 100 was originally timbered, and that the Indians destroyed the forests by their long-continued habit of burning the woods and prairies every year to improve the pasture. Cottonwood was the longest survivor, because it grew in damp places where fires did not burn fiercely. Black willow was its most frequent companion on the western outposts of the forests.

The cottonwood was fitted for holding its ground, and pus.h.i.+ng forward.

Its light seeds are carried by millions on the wind and by water. The tree bears large quant.i.ties of cotton (hence the name), and when the wind whips it from the tree, seeds are caught among the fibers and carried along, to be scattered miles away.

This tree was not much thought of by eastern people who had plenty of other kinds of wood, but pioneers on the plains who had a hard time to get any, found cottonwood useful. It made fences, corncribs, stables, cabins, ox yokes, and fuel. The first canoes made by white men on the upper Missouri river were of cottonwood. Lumber cut from this tree is inclined to warp and check unless carefully handled, and this prejudiced it in the eyes of many; but difficulties of that kind were easily mastered, and instead of being a neglected wood it became popular. Some of the largest early orders came from Germany. Vehicle makers in this country employed it for wagon beds, as a subst.i.tute for yellow poplar when that wood's cost advanced. Manufacturers of agricultural implements were pioneers in its use, it being excellent material for hoppers, chutes, and boxes.

Cottonwood weighs 24.24 pounds per cubic foot, which is approximately the weight of white pine. It has about the stiffness of white oak, but only about eighty per cent of white oak's strength, and fifty per cent of its fuel value. The wood is very porous, but the pores are small, usually invisible to the naked eye. The medullary rays are small and obscure. The appearance of the wood is not improved by quarter-sawing.

The summerwood forms a thin, dark line, so faint that the annual rings are often scarcely distinguishable. The tree is generally a rapid grower; heartwood is brown, sapwood lighter, but as a whole, this tree produces white wood.

The annual cut is declining. It was little more than half in 1910 what it was in 1899. Some regions where large trees were once abundant now have few. The sawmill output in 1910 for the United States--including several species--was 220,000,000 feet. The veneer cut was 33,000,000 feet, log measure; the slack cooperage staves, chiefly for flour barrels, numbered 44,000,000; and pulpwood amounted to about 18,000,000 feet. The lumber cut was largest in the following states in the order named: Arkansas, Louisiana, Mississippi, Missouri, Tennessee, Iowa, Wisconsin, Michigan, Oklahoma, and Minnesota. The tree was lumbered in forty-one states.

Cottonwood is a standard material in several lines of manufacturing. It is made into nearly every kind of box that goes on the market, from the cigar box to those in which pianos are s.h.i.+pped. Manufacturers of food products are particularly anxious to procure this wood, and it is one of the best for woodenware, such as dough boards, ironing boards, and cloth boards. It is used by manufacturers of agricultural implements, interior finish, bank and office fixtures, musical instruments, furniture, vehicle tops, trunks, excelsior, saddle trees, caskets and coffins, and numerous others.

There is no danger that cottonwood will disappear from this country, but it will become scarce. It is being cut much faster than it is growing, and is losing favor as a planted shade and park tree, because of its habit of shedding cotton in the spring and its leaves in the early autumn.

SWAMP COTTONWOOD (_Populus heterophylla_) is known also as river cottonwood, black cottonwood, downy poplar, and swamp poplar. Its range describes a crude horseshoe, running from Rhode Island down the Atlantic coast in a narrow strip, where it is neither abundant nor of large size; touching northern Florida; running westward to eastern Texas and thence up the Mississippi basin and the Ohio river to southwestern Ohio. There is nothing handsome about its appearance with its heavy limbs and spa.r.s.e, rounded crown. In the eastern range the average height is probably not more than fifty feet but in the fertile Mississippi valley it reaches 100 and has a long merchantable bole three feet in diameter.

Its bark is rugged, dirty-brown and broken into loose, conspicuous ridges. It is easily distinguished from the other cottonwoods by the orange-colored pith in the twigs. The buds are rounded and red and have a resinous odor. Sawmills and factories never list this wood separately.

It comes and goes as cottonwood. Its uses are the same as those of common cottonwood. The two species grow in mixture throughout the entire range of the swamp cottonwood.

TEXAS COTTONWOOD (_Populus wislizeni_) is a rather large tree and is the common cottonwood in the upper valley of the Rio Grande in New Mexico and western Texas. The yellowish color of the twigs is apt to attract attention. The wood is used about ranches and occasionally a log finds its way to local sawmills; but its importance is limited to the region where it grows.

MEXICAN COTTONWOOD (_Populus mexicana_) extends its range north of the Mexican boundary into southern Arizona and southwestern New Mexico. It is abundant in Mexico where the largest trees are eighty feet high and three or four in diameter. It is smaller near the northern limits of its range, and there it hugs the banks of mountain streams. Stockmen use the trunks, which are usually small enough to be called poles, to make fences and sheds.

NARROWLEAF COTTONWOOD (_Populus angustifolia_)is a mountain species which manages to live in the semi-arid regions from the Rocky Mountains of Canada to Arizona, but is seldom found below an elevation of 5,000 feet, and it ranges up to 10,000. Trunks are eighteen inches or less in diameter, and fifty or sixty feet high. The seeds are larger than those of most other cottonwoods. It being a semi-desert species, its wood is appreciated where it is accessible, and it has local uses only.

LANCELEAF COTTONWOOD (_Populus ac.u.minata_) is a small tree with limited range, growing in the arid region along the eastern base of the Rocky Mountains, southward from the Black Hills. It is found also north of the Canadian border. It is usually fifteen or eighteen inches in diameter, and thirty or forty feet high. Trunks seldom go to sawmills, but some local use is made of the wood. Trees are occasionally planted for shade in towns of western Nebraska and Wyoming.

FREMONT COTTONWOOD (_Populus fremontii_), called white cottonwood in New Mexico, but elsewhere simply cottonwood, grows from western Texas to California, and as far north as Utah and Colorado. It sometimes attains a diameter of five or six feet and a height of 100. The Indians in New Mexico formerly made rude, clumsy ox carts of this wood, without a sc.r.a.p of iron or other metal in the vehicles. One of the carts is preserved in the National Museum, Was.h.i.+ngton, D. C. The wood is tough and light, but it is dull white, with no attractive figure. Even the annual rings are hardly distinguishable. Logs are occasionally sawed into lumber, and farmers in western Texas make wagon beds of it.

[Ill.u.s.tration]

BALM OF GILEAD

[Ill.u.s.tration: BALM OF GILEAD]

BALM OF GILEAD

(_Populus Balsamifera_)

American Forest Trees Part 54

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American Forest Trees Part 54 summary

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