This tree is known as yellow chestnut oak, chinquapin oak, chestnut oak,

pin oak, yellow oak, scrub oak, dwarf chestnut oak, shrub oak, and rock

oak. It should not be confused with _Quercus prinus_, the true chestnut

oak, although it is commonly known in so many sections of the country by

the latter name; the names yellow oak, pin oak, and scrub oak are

likewise applied to many species, so that the only way to accurately

designate members of this great family is to employ their botanical

names. However, this species should always be known as the chinquapin

oak, which is a distinctive term, and not applied to any other.

The bark of this tree is light gray and is broken into thin flakes,

silvery-white, sometimes slightly tinted with brown, rarely half an inch

thick. The branchlets are marked with pale lenticels.

The leaves of the chinquapin oak are from five to seven inches long,

simple and alternate; they have a taper-pointed apex and blunt,

wedge-shaped or pointed base; are sharply toothed. When unfolding they

show bright bronze-green above, tinged with purple, and are covered

underneath with light silvery down; at maturity they become thick and

firm, showing greenish-yellow on the upper surface and silvery-white

below. The midrib is conspicuous and the veins extending outward to the

points of the teeth are well-defined. In autumn the leaves turn orange

and scarlet and are very showy. The leaves are narrow, hardly two inches

wide, and more nearly resemble those of the chestnut than do any other

oak leaves. In their broadest forms they are also similar to those of

the true chestnut oak, although the difference in the quality and color

of the bark, and of the leaves, would prevent either tree from being

mistaken for the other. They are crowded at the ends of the branches and

hang in such a manner as to show their under surfaces with every touch

of breeze. This characteristic gives the chinquapin oak a peculiar

effect of constantly shifting color which is one of its most attractive

features and which puts the observer in mind of the trembling aspen,

although the shading and coloring of the oak is much more striking.

This tree’s range extends from northern New York, along Lake Champlain

and the Hudson river westward through southern Ontario, and southward

into parts of Nebraska and Kansas; on its eastern boundary it extends as

far south as the District of Columbia and along the upper Potomac; the

growth west of the Alleghany mountains reaches into central Alabama and

Mississippi, through Arkansas and the northern portion of Louisiana to

the eastern part of Oklahoma and parts of Texas even to the canyons of

the Guadalupe mountains, in the extreme western part of that state. It

is a timber tree of much importance in Texas, and in 1910 manufacturers

reported the use of 1,152,000 feet in that state, largely for making

furniture and vegetable crates.

The chinquapin oak is named from the form of its leaf. Its acorn bears

no resemblance to the nut of chinquapin. Trees average smaller in size

than white oak, but when all circumstances are favorable they compare

well with any of the other oaks. In the lower Wabash valley, trees of

this species were found in the original forests 160 feet high and four

or five in diameter. When it grows in crowded stands it develops a tall,

symmetrical trunk, clear of limbs; but it is shorter in open growth. The

base is often much buttressed.

The wood is very heavy, hard, strong, stiff, and durable. In color the

heartwood is dark, the sapwood lighter. The springwood is narrow and

filled with large pores, the summerwood broad and dense. Medullary rays

are less numerous and scarcely as broad as in chestnut oak, which this

wood resembles. It checks badly in drying, both by kiln and in the open

air; but when properly seasoned it is an excellent wood for most

purposes for which white oak is used. It shows fewer figures when

quarter-sawed than white oak shows, but it is satisfactory for many

kinds of furniture, particularly when finished in mission style.

Railroads throughout the region where this species is found have laid

chinquapin oak ties in their tracks for many years and they give long

service, because they resist decay and are hard enough to stand the wear

of the rails. In early times in the Ohio valley it helped to fence many

a farm when the material for such fences was the old style fence rail,

eleven feet long, mauled from the straightest, clearest timber afforded

by the primeval forest. It had for companions many other oaks which were

abundant there, and it was on a par with the best of them. In the first

years of steamboating on the Ohio river, when the engines used wood for

fuel, they provided a market for many an old rail fence. The rails were

the best obtainable fuel, and the chinquapin oak rails in the heaps were

carefully looked for by the purchasers, because they were rated high in

fuel value. It is now known that chinquapin oak in combustion develops

considerably more heat than an equal quantity of white oak.

When southern Indiana and Illinois were furnishing coopers with their

best staves, chinquapin oak was ricked with white oak, and no barrel

maker ever complained. The pores in the wood seem large, but in old

timber which is largely heartwood, the pores become clogged by the

processes of nature, and the wood is made proof against leakage. That is

what gives white oak its superiority as stave timber. It has as many

pores as red oak, but upon close examination under a magnifying glass,

they are found to be plugged, while red oak’s pores are wide open. The

result is that red oak barrels leak through the wood; those made of

white oak do not. Chinquapin oak possesses the same properties, which

account for its reputation as stave material.

The future for chinquapin oak is not quite as promising as that of

chestnut oak. The former’s choice growing place is on rich soil and in

damp situations. These happen to be what the farmer wants, and he will

not leave the chinquapin oak alone to grow in nature’s method, nor will

he plant its acorns in places where the trees will interfere with his

cornfields and meadows. Consequently, the tree is apt to receive scant

consideration after the original forests have disappeared; while its

poor cousin, the chestnut oak, will be left to make its way on sterile

ridges, and may even receive some help from the forester and woodlot

owner.

VALLEY OAK (_Quercus lobata_) is often considered to be the largest

hardwood of the Pacific coast. Trunk diameters of ten feet have been

recorded, and heights more than 100; but such measurements belong

only to rare and extraordinary individuals. The average size of the

tree is less than half of that. The most famous tree of this species

is the Sir Joseph Hooker oak, near Chico, California, though it is

not the largest. It is seven feet in diameter and 100 high. It was

named by the botanist Asa Gray in 1877. This species is commonly

called California white oak, which name would be unobjectionable if

it were the only white oak in California. A more distinctive name is

weeping oak, which refers to the appearance of the outer branches.

It is called swamp oak, but without good reason, though the ground

on which it grows is often swampy during the rainy season. The name

valley oak is specially appropriate, since its favorite habitat is

in the broad valleys of central California. Its range does not go

outside that state, neither does the tree grow very high on the

mountains. Its range begins in the upper Sacramento valley and

extends to Tejon, south of Lake Tulare, a distance north and south

of about five hundred miles, while east and west the tree is found

from the Sierra foothills to the sea, 150 or 200 miles. Its

characteristic growth is in scattered stands. It does not form

forests in the ordinary sense. Two or three large trees to the acre

are an average, and often many acres are wholly missed. The form of

trees, and the wide spaces between them, resemble an old apple

orchard, though few apple trees live to attain the dimensions of the

valley oak of ordinary size. The best stands were originally in the

Santa Clara valley and in the central part of the San Joaquin valley

in the salt grass region north of Lake Tulare in Kings and Fresno

counties. Most of the largest trees were cut long ago.

The leaves are lobed like white oak (_Quercus alba_) but are

smaller, seldom more than four inches long and two wide. The acorns

are uncommonly long, some of them being two and a half inches, sharp

pointed, with shallow cups. The wood of this oak is brash and breaks

easily. It is far below good eastern oak in strength and elasticity.

It weighs 46.17 pounds per cubic foot. The tree grows rapidly, and

its wide, clearly defined annual rings are largely dense summerwood.

The springwood is perforated with large pores. The color of the wood

is light brown, the sapwood lighter. Except as fuel, the uses found

for valley oak hardly come up to what might be expected of a tree so

large. It is not difficult, or at least was not difficult once, to

cut logs sixteen feet long and from three to five in diameter. Such

logs ought to make good lumber. The medullary rays indicate that the

wood can be quarter-sawed to advantage; yet there is no account that

any serious attempt was ever made to convert the valley oak into

lumber. The wood has some objectionable properties, but it has

escaped the sawmill chiefly because hardwood mills have never been

numerous in California, and they have been especially few in the

regions where the best valley oaks grow. The tree has been a great

source of fuel. It usually divides twenty or thirty feet from the

ground into large, wide-spreading branches, tempting to the

woodchopper. In central California, twenty or thirty years ago, it

was not unusual to haul this cordwood twenty-five miles to market.

Stockmen employed posts and rails split from valley oak to enclose

corrals and pens on the open plains for holding cattle, sheep, and

horses. The acorns are edible, and were formerly an article of food

for Indians who gathered them in considerable quantities in the fall

and stored them for winter in large baskets which were secured high

in the forks of trees to be out of reach of all ordinary marauders.

The baskets were made rain proof by roofing and wrapping them with

grass. When the time came for eating the acorns, they were prepared

for use by hulling them and then pounding them into meal in stone

mortars. The hulling was done with the teeth, and was the work of

squaws. The custom of eating the acorns has largely ceased with the

passing of the wild Indians from their former camping places; but

the stone mortars by hundreds remain in the vicinity of former

stands of valley oak.

This splendid tree is highly ornamental, but it has not been

planted, and perhaps it will not become popular. Nature seems to

have confined it to a certain climate, and it is not known that it

will thrive outside of it. It will certainly disappear from many of

the valleys where the largest trees once grew. The land is being

taken for fields and vineyards, and the oaks are removed. Some will

remain in canyons and rough places where the land is not wanted, and

one of the finest species of the United States will cease to pass

entirely from earth. The largest of these oaks have a spread of

branches covering more than one-third of an acre.

[Illustration]

LIVE OAK

[Illustration: LIVE OAK]

LIVE OAK

(_Quercus Virginiana_)

The history of this live oak is a reversal of the history of almost

every other important forest tree of the United States. It seems to be

the lone exception to the rule that the use of a certain wood never

decreases until forced by scarcity. There was a time when hardly any

wood in this country was in greater demand than this, and now there is

hardly one in less demand. The decline has not been the result of

scarcity, for there has never been a time when plenty was not in sight.

A few years ago, several fine live oaks were cut in making street

changes in New Orleans, and a number of sound logs, over three feet in

diameter, were rolled aside, and it was publicly announced that anyone

who would take them away could have them. No one took them. It is

doubtful if that could happen with timber of any other kind.

The situation was different 120 years ago. At that time live oak was in

such demand that the government, soon after the adoption of the

constitution, became anxious lest enough could not be had to meet the

requirements of the navy department. The keels of the first war vessels

built by this government were about to be laid, and the most necessary

material for their construction was live oak. The vessels were to be of

wood, of course; and their strength and reliability depended upon the

size and quality of the heavy braces used in the lower framework. These

braces were called knees and were crooked at right angles. They were

hewed in solid pieces, and the largest weighed nearly 1,000 pounds. No

other wood was as suitable as live oak, which is very strong, and it

grows knees in the form desired. The crooks produced by the junction of

large roots with the base of the trunk were selected, and shipbuilders

with saws, broadaxes, and adzes cut them in the desired sizes and

shapes.

When the building of the first ships of the navy was undertaken, the

alarm was sounded that live oak was scarce, and that speculators were

buying it to sell to European governments. Congress appropriated large

sums of money and bought islands and other lands along the south

Atlantic and Gulf coast, where the best live oak grew. In Louisiana

alone the government bought 37,000 live oak trees, as well as large

numbers in Florida and Georgia. In some instances the land on which the

trees stood was bought.

Ship carpenters were sent from New England to hew knees for the first

vessels of the navy. The story of the troubles and triumphs of the

contractors and knee cutters is an interesting one, but too long for

even a summary here; suffice it that in due time the vessels were

finished. The history of those vessels is almost a history of the early

United States navy. Among their first duties when they put to sea was to

fight French warships, when this country was about to get into trouble

with Napoleon. They then fought the pirates of North Africa, and there

one of the ships was burned by its own men to prevent its falling into

the hands of the enemy. “Old Ironsides,” another of the live oak

vessels, fought fourteen ships, one at a time, during the war of 1812,

and whipped them all. Another of the vessels was less fortunate. It was

lost in battle, in which its commander, Lawrence, was killed, whose last

words have become historic: “Don’t give up the ship.” Another came down

to the Civil war and was sunk in Chesapeake bay.

The invention of iron vessels ended the demand for live oak knees. The

government held its land where this timber grew for a long time, but

finally disposed of most of it. Part of that owned in Florida was

recently incorporated in one of the National Forests of that state.

Live oak is a tree of striking appearance. It prefers the open, and when

of large size its spread of branches often is twice the height of the

tree. Its trunk is short, but massy, and of enormous strength; otherwise

it could not sustain the great weight of its heavy branches. Some of the

largest limbs are nearly two feet in diameter where they leave the

trunk, and are fifty feet long, and some are seventy-five feet in

length. Probably the only tree in this country with a wider spread of

branches is the valley oak of California. The live oak’s trunk is too

short for more than one sawlog, and that of moderate length. The largest

specimens may be seventy feet high and six or seven feet in diameter,

and yet not good for a sixteen-foot log. The enormous roots are of no

use now. When land is cleared of this oak, the stumps are left to rot.

The range of live oak extends 4,000 miles or more northeast and

southwest. It begins on the coast of Virginia and ends in Central

America. It is found in Lower California and in Cuba. In southern United

States it sticks pretty closely to the coastal plains, though large

trees grow 200 or 300 feet above tide level. In Texas it is inclined to

rise higher on the mountains, but live oak in Texas seldom measures up

to that which grows further east. In southern Texas, where the land is

poor and dry, live oak degenerates into a shrub. Trees only a foot high

sometimes bear acorns. In all its range in this country, it is known by

but one English name, given it because it is evergreen. The leaves

remain on the tree about thirteen months, following the habit of a

number of other oaks. When new leaves appear, the old ones get out of

the way.

The wood is very heavy, hard, strong, and tough. In strength and

stiffness it rates higher than white oak, and it is twelve pounds a

cubic foot heavier. The sapwood is light in color, the heartwood brown,

sometimes quite dark. The pores in the sapwood are open, but many of

them are closed in heartwood. The annual rings are moderately well

defined. The large pores are in the springwood, and those of the

summerwood are smaller, but numerous. The medullary rays are numerous

and dark. Measured radially, they are shorter than those of many other

oaks. They show well in quarter-sawed lumber, but are arranged

peculiarly, and do not form large groups of figures; but the wood

presents a rather flecked or wavy appearance. The general tone is dark

brown and very rich. It takes a smooth polish. When the wood is worked

into spindles and small articles, and brightly polished, its appearance

suggests dark polished granite, but the similitude is not sustained

under close examination. Grills composed of small spindles and

scrollwork are strikingly beautiful if displayed in light which does the

wood justice. Composite panels are manufactured by joining narrow strips

edge to edge. Selected pieces of dressed live oak suggest Circassian

walnut, but would not pass as an imitation on close inspection. It may

be stated generally that live oak is far from being a dead, flat wood,

but is capable of being worked for various effects. Its value as a

cabinet material has not been appreciated in the past, nor have its

possibilities been suspected. It dropped out of notice when shipbuilders

dispensed with it, and people seem to have taken for granted that it had

no value for anything else. The form of the trunks makes possible the

cutting of short stock only; but there is abundance of it. It fringes a

thousand miles of coast. Many a trunk, short though it is, will cut

easily a thousand feet of lumber. Working the large roots in veneer has

not been undertaken, but good judges of veneers, who know what the

stumps and roots contain, have expressed the opinion that a field is

there awaiting development.

Published reports of the uses of woods of various states seldom mention

live oak. In Texas some of it is employed in the manufacture of parquet

flooring. It is dark and contrasts with the blocks or strips of maple or

some other light wood. It is turned in the lathe for newel posts for

stairs, and contributes to other parts of stair work. In Louisiana it is

occasionally found in shops where vehicles are made. It meets

requirements as axles for heavy wagons. Stone masons’ mauls are made of

live oak knots. They stand nearly as much pounding as lignum-vitæ. More

live oak is cut for fuel than for all other purposes. It develops much

heat, but a large quantity of ashes remains.

The live oak is the most highly valued ornamental tree of the South,

though it has seldom been planted. Nature placed these oaks where they

are growing. Many an old southern homestead sits well back in groves of

live oak. Parks and plazas in towns have them, and would not part with

them on any terms. Tallahassee, Florida, is almost buried under live

oaks which in earlier years sheltered the wigwams of an Indian town.

Villages near the coasts of both the Gulf and the Atlantic in several

southern states have their venerable trees large enough for half the

people to find shade beneath the branches at one time. Many fine stands

have been cut in recent years to make room for corn, cane, and rice.

Many persons associate the live oak with Spanish moss which festoons its

branches in the Gulf region. The moss is no part of the tree, and

apparently draws no substance from it, though it may smother the leaves

by accumulation, or break the branches by its weight. Strictly speaking,

the beard-like growth is not moss at all, but a sort of pine apple

(_Dendropogon usenoides_) which simply hangs on the limbs and draws its

sustenance from water and air. It is found on other trees, besides live

oak, and dealers in Louisiana alone sell half a million dollars worth of

it a year to upholsterers in all the principal countries of the world.

[Illustration]

RED OAK

[Illustration: RED OAK]

RED OAK[4]

(_Quercus Rubra_)

[4] Red oak belongs to the black oak group. Other species usually

listed as black oaks are Pin oak (_Quercus palustris_), Georgia oak

(_Quercus georgiana_), Texan red oak (_Quercus texana_), Scarlet oak

(_Quercus coccinea_), Yellow oak (_Quercus velutina_), California

black oak (_Quercus californica_), Turkey oak (_Quercus catesbæi_),

Spanish oak (_Quercus digitata_), Black Jack oak (_Quercus

marilandica_), Water oak (_Quercus nigra_), Willow oak (_Quercus

phellos_), Laurel oak (_Quercus laurifolia_), Blue Jack oak

(_Quercus brevifolia_), Shingle oak (_Quercus imbricaria_),

Whiteleaf oak (_Quercus hypoleuca_), Highland oak (_Quercus

wislizeni_), Myrtle oak (_Quercus myrtifolia_), California live oak

(_Quercus agrifolia_--sometimes classed with white oaks), Canyon

live oak (_Quercus chrysolepis_), an evergreen oak with no English

name, (_Quercus tomentella_), Price oak (_Quercus pricei_), Morehus

oak (_Quercus morehus_), Tanbark oak (_Quercus densiflora_), Barren

oak (_Quercus pumila_).

When a lumberman speaks of red oak he may mean any one of a good many

kinds of trees, but when a botanist or forester uses that name he means

one particular species and no other. For that reason there is much

uncertainty as to what species is in the lumberman’s mind when he speaks

of red oak. It means more to him than a single species, depending to a

considerable extent upon the part of the country where he is doing

business. If he is in the Gulf states, and has in mind a tree which

grows there, he does not refer to the tree known to botanists as red

oak. He may mean the Texan or southern red oak (_Quercus texana_), or

the willow oak (_Quercus phellos_), or the yellow oak (_Quercus

velutina_), or any one of several others which grow in that region; but

the typical red oak does not grow farther south than the mountains of

northern Georgia; and any one who is cutting oak south or southwest of

there, is cutting other than the true red oak. That does not imply that

he is handling something inferior, for very fine oak grows there; but in

an effort to separate the commercial black oaks into respective species,

it is necessary to define them by metes and bounds of ranges as well as

to describe them by characteristics of leaves, acorns, and wood. The

time will probably never come in this country when the sawmill man will

pile each species of oak separately in his yard, and sell separately;

but the tendency is in that direction. The twenty-five or more black

oaks in this country all have some characteristics in common; but they

are by no means all valuable alike, or all useful for the same purposes.

For that reason, the demands of trade require, and will require more and

more as higher utilization is reached, that certain kinds of red oak or

black oak be sold separately.

American Forest Trees · 第 18 / 52 段