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Trees Worth Knowing Part 30

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was heavy, hard, close-grained, with a thin rim of soft sap-wood.

This famous lumber, preferred by s.h.i.+pbuilders of many countries for masts, grew in the virgin forest of the Carolinas. Giants were cut in the rich marsh lands back from the Sounds. But the small loblolly pine, grown on sandy soil, is but third-grade lumber, the sap-wood three times as thick as the heart-wood and exceedingly coa.r.s.e-grained. One merit has recently been discovered in this lumber, that formerly blackened before it was seasoned, by the invasion of a fungous growth. It quickly absorbs creosote, which renders it immune from decay. It is used in the building of docks, cars, boats, and locally in house-building. Its wood makes a sharp, quick heat when dried. It is used in bakeries and brick kilns, and in charcoal-burning.

=The Pitch Pine=

_P. rigida_, Mill.

The pitch pine goes down to the very water's edge on the sand-dunes along the New-England Coast, and spreads on worthless land from New Brunswick to Georgia and west to Ontario and Kentucky. Occasionally in cultivation the tree is symmetrical, and grows to considerable size. In the most favorable situations, however, it rarely exceeds fifty feet in height, with gnarled rough branches, oftenest irregular in form and becoming painfully grotesque with age. The persistence of its cl.u.s.tered black cones adds to the tree's ugliness; and the tufted, scant foliage has a sickly yellowish-green color when new, and becomes darker and twisted the second year. The cones are armed with stout thorns and often remain on the trees ten or twelve years. The knots, particularly, are rich in resin--the delight of camping parties. "Pine-knots" and "candlewood" are household necessities in regions where these trees are the prevailing species of pine.

Starved as is its existence, the pitch pine springs up with amazing vigor after a fire. Suckers are sent up about the roots of the fire-killed trees, and the wind scatters the seeds broadcast for a new crop. The chief merit of the tree is that it grows on worthless land, and holds with its gnarled roots the s.h.i.+fting sand-dunes of the New-England Coast better than any other tree.

=The Gray Pine=

_P. divaricata_, Sudw.

The gray pine goes farther north than any other pine, following the McKenzie River to the Arctic Circle. From Nova Scotia to the Athabasca River, it covers barren ground, reaching its greatest height, seventy feet, in pure forests north of Lake Superior. In Michigan it forms the "jack-pine plains" of the Lower Peninsula. As a rule it is a crouching, sprawling tree, its twigs covered with scant short dingy leaves in twos, averaging an inch in length. The wood is a great boon to the regions this tree inhabits. It is light, soft, weak, and close-grained; used for posts, railroad ties, building material and fuel. Its seeds germinate better from cones that have been scorched by fire.

=The Digger Pine=

_P. Sabiniana_, Dougl.

The digger pine is a western California tree of the semi-arid foothill country. Gray-green, spa.r.s.e foliage on the gnarled branches gives the tree a forlorn starved look, as it stands or crouches, singly or in scattered groups, along the gravelly sun-baked slopes.

The great cones, six to ten inches long, fairly loading the branches, express most emphatically the vigor of the tree. The thickened scales protrude at a wide angle from the central core, and each bears a strong beak, triangular, flattened like a shark's tooth, but curved. The rich oily nuts, as big as lima beans, furnish a nouris.h.i.+ng food to the Indians. The Digger tribe harvested these nuts, and the pioneer gave the tree the tribal name.

=The Western Pitch Pine=

_P. Coulteri_, D. Don.

The Western pitch pine, most abundant in the San Bernardino and San Jacinto Mountains, at elevations of about a mile above the sea, has cones not unlike those of the digger pine, in the armament of their scales. These are notable by being the heaviest fruits borne by any pine tree. Occasionally they exceed fifteen inches in length and weigh eight pounds. The seeds are one-half an inch in length, not counting the thin wing, which is often an inch long.

The leaves of this "big-cone" pine match the cones. They are stout, stiff, dark blue-green, six to sixteen inches long, three in a bundle, which has a sheath an inch or more in length. Crowded on the ends of the branches, these leaves would ent.i.tle this tree to qualify as a "foxtail" pine, except for the fact that the foliage persists into the third and fourth year, which clothes the branches far back toward the trunk and gives the tree a luxuriant crown. The dry slopes and ridges of the Coast Ranges of California are beautified by small groves and scattered specimens of this striking and picturesque pine, so unlike its neighbors. Its wood is used only for fuel. In European countries this is a popular ornamental pine, planted chiefly for its great golden-brown cones.

=The k.n.o.b-cone Pine=

_P. attenuata_, Lemm.

The k.n.o.b-cone pine inhabits the Coast Ranges from the San Bernardino Mountains northward on the western slopes of the Sierra Nevada and Cascade Mountains, into southwestern Oregon, where it forms pure forests over large areas, its alt.i.tude limit being four thousand feet. It is a tall slim tree of the hot dry fire-swept foothills, and it comes again with absolute certainty after forest fires. The cl.u.s.tered cones, three to six inches long, are amazingly hard and do not open at maturity, but wait for the death of the tree. Leaves three to seven inches long, in cl.u.s.ters of three, firm, rigid, pale yellow or bluish green, cover the tree with a spa.r.s.e thin foliage-ma.s.s; but the branches, new and old, are covered with cones, many of which are being swallowed up by the growth of wood on trunk and limb. Thirty or forty years these cones may hang, their seeds never released and never losing their vitality, until fire destroys the tree. Then the scales open and the winged seeds are scattered broadcast. They germinate and cover the deforested slopes with a crop of k.n.o.b-cone pine saplings that soon claim all standing room and cover the scars of fire completely.

=The Monterey Pine=

_P. radiata_, D. Don.

The Monterey pine, like its companion, the Torrey pine, is restricted to a very narrow area. They grow together on Santa Rosa Island. At Point Pinos, south of Monterey Bay, this tree stands a hundred feet in height, with trunks occasionally five to six feet in diameter, its branches spreading into a round luxuriant, though narrow, head. From Pescadero to San Simeon Bay, in a narrow belt a few miles wide, and on the neighboring islands, this tree finds its limited natural range; but the horticulturist has noted the silvery sheen of its young growth and the rich bright green that never dulls in its foliage. Its quick growth and handsome form in cultivation make it the most desirable pine for park and shade planting in California. Indeed it is a favorite park tree north to Vancouver along the Coast. It has been introduced into Europe and is occasionally met in parks in the Southeastern states.

=The Western Yellow Pine=

_P. ponderosa_, Laws.

The Western yellow pine forms on the Colorado Plateau the most extensive pine forests of the American continent. Mountain slopes, high mesas, dry canyon sides, even swamps, if they occur at elevations above twenty-five hundred feet, furnish suitable habitats for this amazing species, in some of its varying forms. From British Columbia and the Black Hills it follows the mountains through the Coast Ranges, Sierras, and the Great Continental Divide, to the highlands of Texas and into Mexico, forming the most extensive pine forests in the world. All sorts of construction work draw upon this wonderful natural supply of timber, from the droughty western counties of the Dakotas, Nebraska and Texas, to the Pacific Coast.

The typical tree has thick plates of cinnamon-red bark, a ma.s.sive trunk, five to eight feet in diameter, one hundred to two hundred feet high, with many short, thick, forked branches in a spire-like head. In arid regions the trunk is shorter and the head becomes broad and round-topped. Near the timber line and in swamps, the trees are stunted and the bark is nearly black.

The leaves of this pine tree are two or three in a bundle, stout, dark yellow-green, five to eleven inches long, deciduous during their third season. Their color has given the name to the species, for the wood is not yellow, but light red, with nearly white sap-wood.

On the way to the Yosemite, the traveler meets the yellow pine--splendid tracts of it--with the giant sugar pine, in open park-like areas, where each individual tree has room to manifest the n.o.ble strength of its tall shaft.

The flowers appear in May, brightening the even color of the s.h.i.+ny leaves with their pink or brown staminate cl.u.s.ters two or three inches wide. The crimson pistillate cones hide at the ends of the branches, lengthening into fruits three to ten inches in length, and half as wide. Strong, recurving tips, armed with slender p.r.i.c.kles, are seen in the scales of the reddish-brown cones that fall soon after they spread and liberate the winged seeds. These are produced in abundance, are scattered widely by the wind, and accomplish the renewal of these mountain forests.

The bark is usually very thick at the bases of the trunks, reaching eighteen inches on the oldest trees. With this cloak wrapped about its living cambium, the yellow pine is able, better than most trees, to survive a sweeping forest fire.

Botanists have found _P. ponderosa_ extremely variable, and they quarrel among themselves about species and variety, for the tree endures many climates, adapts itself to varying conditions and develops a type for each habitat and region. In old lake basins on the Sierra slopes, "variety _Jeffreyi_, Vasey," is the name given to the gigantic yellow pine, which there finds food and moisture in abundance and reaches its finest proportions and its greatest lumber value.

In the Rocky Mountains, "variety _scopulorum_, Engelm.," is the type. "But all its forms can be traced to a common origin and so the parent species stands; and despite man's devastating axe the yellow pine flourishes in the drenching rains and fog of the northern coast at the level of the sea, in the snow-laden blasts of the mountains, in the white glaring suns.h.i.+ne of the interior plateaus and plains, and on the borders of mirage-haunted deserts, volcanoes, and lava beds,--waving its bright plumes in the hot winds undaunted, blooming every year for centuries, and tossing big ripe cones among the cinders and ashes of nature's hearths." (_John Muir._)

=The Scrub Pine=

_P. contorta_, Loud.

The scrub pine is the humble parent of one of the splendid Western lumber pines, whose description comes under its varietal name. Down the coast of Alaska, usually in sphagnum bogs, on sand-dunes, in tide-pools and deep swamps to Cape Mendocino, the indomitable, altogether-admirable scrub pine holds its own against cold, salt air and biting arctic blasts. No matter how stunted, gnarly and round-shouldered these trees are, one thing they do, often when only a few inches high: _they bear cones_, and keep them for years; and each season add more. Up from the sea the scrub pine climbs, ascending the Coast Ranges and western slopes of the Cascade Mountains, changing its habit to a tree twenty to thirty feet tall with thick branches and dark red-brown bark, checked into oblong plates. Gummy exudations of this pitch pine make it peculiarly liable to running fires. Thousands of acres are destroyed every summer, but they seize the land again and soon cover it with the young growth. This happens because the burned trees drop their cones, which open and set free the seeds which have never lost their vitality.

In all the vast region over which this vagrant tree swarms, it furnishes firewood and shelter. The pioneer blesses it, and a great mult.i.tude of wild things, both plant and animal, maintain their lives in comfort and security because of its protection.

The lodge-pole pine or tamarack pine is but a variety (_Murrayana_) of _P. contorta_, that grows in forests on both slopes of the Rocky Mountains of Montana and Wyoming, at elevations of from seven to eight thousand feet, and stretches away into British Columbia and Alaska, and southward to the San Jacinto Range. Between eight thousand and nine thousand five hundred feet in alt.i.tude, along the Sierra Nevada in California, it reaches its greatest size and beauty, and forms extensive dense forests. The young trees have very slender trunks, and often stand crowded together like wheat on the prairie. An average forest specimen is five inches in diameter, when thirty or forty feet in height. No wonder the Indian in Wyoming and Colorado called it "the lodge-pole pine," for their supple trunks fitted these trees, while yet saplings, to support the lodge he built.

Richer, moister ground nourishes this fortunate offspring of the scrub pine. The two-leaved foliage, usually about two inches long, wears a cheerful yellow-green, while the parent tree is dark and sombre, with leaves an inch in length. The hard, strong, brown wood of _contorta_ contrasts strikingly with that of its variety, which is light yellow or nearly white--soft, weak, straight-grained and easily worked. Its abundance in regions where other timber is scarce, brings it into general use for construction work. It also furnishes railroad ties, mine timbers and fuel, with the minimum of labor, since trunks of proper sizes can easily be selected.

The Indians, whose food supply was always precarious, gathered branches and made a soft pulp of the inner bark, sc.r.a.ped out in the growing season. This they baked, after shaping it into huge cakes, in pit ovens built of stones, and heated for hours by burning in them loads of firewood. When the embers were burned out, the oven was cleaned and the cakes put in. Later they were smoked with a damp fire of moss, which preserved them indefinitely. "Hard bread" of this type provisioned the Indian's canoe on long trips. Inedible until boiled, it was a staple winter food at home and on long expeditions, among various tribes of the Northwest.

=The Red Pine=

_P. resinosa_, Ait.

The red pine, also called the "Norway pine" for no particular reason, is something of an anomaly. Its wood is soft like that of the white pine with which it grows, and though _resinosa_ means "full of resin," it is not so rich as several other pitch pines. Its paired leaves and red bark reveal its kins.h.i.+p with the Scotch pine, a European species, very common in cultivation in America.

Seemingly intermediate between soft and hard pines, _P. resinosa_ appeals to lumbermen and landscape gardeners because it embodies the good points of both cla.s.ses. No handsomer species grows in the forests, from New Brunswick to Minnesota and south into Pennsylvania. The st.u.r.dy red trunk makes a bright color contrast with the broad symmetrical pyramid of boughs clothed in abundant foliage. The paired, needle-like leaves, dark green and s.h.i.+ning, are six inches in length. The flowers are abundant and bright red, more showy than is ordinary in the pine family. Brown cones one to three inches long with thin unarmed scales, discharge their winged seeds in early autumn, but cling to the branches until the following summer.

[Ill.u.s.tration: _See page 259_ _See page 248_

LEAVES AND CONES OF HEMLOCK (_left_) AND OF NORWAY SPRUCE (_right_)]

[Ill.u.s.tration: _See page 248_

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