3. Acer rùbrum Linnæus. Red Maple. Soft Maple. Swamp Maple. Plate 113. Medium to large sized trees; bark of small trees smooth and gray, becoming dark brown on old trees, somewhat furrowed and scaly; branchlets smooth and reddish; twigs generally smooth but sometimes hairy, becoming glabrous by autumn; leaves 5-12 cm. long, 3-5 lobed, more or less cordate at the base, sometimes truncate or rounded, sinuses acute, those of 3-lobed leaves generally wider angled than those of 5-lobed ones, the lobes more or less irregularly serrate or dentate, hairy while young, glabrous above and more or less hairy beneath at maturity, glaucous beneath; flowering period March or April; flowers red or reddish, in the axils of the leaves of the previous year, the staminate and pistillate in separate clusters on the same or different trees; fruit maturing late in spring, on pedicels 3-8 cm. long, generally red, sometimes green, glabrous at maturity, rarely somewhat pubescent, 1.5-3.5 cm. long.

Distribution.—Newfoundland to Florida, west to Minnesota and south to Texas. It is found in all parts of Indiana. Its preferred habitat is that of low ground about lakes, swamps, along streams and in the "flats" in the southeast part of the State. Throughout its range in Indiana where it is found in low ground, it is in places rich in organic matter, except in the "flats" of the southern part of the State where it grows in a hard clay soil with sweet gum, red birch, etc. In contrast the silver maple is generally found growing in wet places with little organic matter; especially is this true in the lower Wabash bottoms. The red maple grows also on high ground. In the northern part of the State it is only an occasional tree of gravelly ridges or on high ground about lakes or along streams. In the southern part of the State it is a local to a frequent tree in most parts of the "knob" area where it is associated with white oak, black oak, black gum, etc. It is also an occasional tree on the top of bluffs and cliffs.

Remarks.—The red maple is not abundant enough in Indiana to be of any economic importance. It grows rapidly and should replace the silver maple for shade tree planting since its branches are not broken off as easily by ice storms and it is more resistant to insect attack.

3a. Acer rubrum variety Drummóndii (Hooker and Arnott) Torrey and Gray. This variety of the red maple is a form found in the dense swamps of the lower Wabash Valley. It is distinguished from the type by its twigs which generally remain more or less hairy until maturity; by the under surface of the leaves remaining more or less tomentose during the summer, and by its larger fruit. This variety is known with certainty only from Little Cypress Swamp in Knox County about 12 miles southwest of Decker. Here it is a frequent to a common tree associated with cypress, swell-butt ash, button-bush, sweet gum, etc. All of the trees of this locality have 5-lobed leaves.

Plate 113

A specimen collected in the "bottoms" about two miles east of Huntingburg in Dubois County has 3-lobed leaves which are tomentose beneath at fruiting time and has fruit intermediate in size between the type and variety Drummondii which I doubtfully refer to variety tridens Wood.

4. Acer nìgrum F. A. Michaux. Black Maple. Black Sugar. Plate 114. Medium to large sized trees with dark furrowed bark on old trees; leaves a little wider than long, 6-15 cm. long, on petioles usually 3-15 cm. long which are more or less swollen at the base and by maturity develop a scale like appendage on each side of the petiole at the base—especially on each of the terminal pair of leaves, sometimes with foliar stipules which are 2-3 cm. long on stalks of equal length, leaves with three main lobes, the two lower lobes generally have a small lobe at their base, margins of lobes entire and undulating, sinuses between main lobes generally rounded at the base, wide and shallow, base with a narrow sinus, the lower lobes often overlapping, rarely somewhat dentate, dark green above and a paler yellow green below, hairy on both surfaces when young, becoming at maturity glabrous above and remaining more or less pubescent beneath; flowers appear in May when the leaves are about half grown on long hairy pedicels, the staminate and pistillate in separate clusters on the same or different trees; fruit matures in autumn, the samaras about 3 cm. long.

Plate 114

5. Acer sáccharum Marshall. Sugar Maple. Sugar Tree. Hard Maple. Rock Maple. Plate 115. Usually large, tall trees. The bark of small trees is smooth or rough, becoming fissured on old trees, tight or on very old trees sometimes the ridges loosen on one edge and turn outward. The leaves are extremely variable on different trees, and frequently show a wide variation on the same tree, as to form and in the presence or absence of hairs on the petioles and on the under surface of the leaves. In our area all of the forms which have the majority of the leaves longer than wide or about as wide as long, may be considered as falling within the type. The average sized leaves are 6-12 cm. long, 3-5 lobed, more or less cordate at the base, generally with a broad sinus, sometimes truncate or slightly wedge-shape, sinuses generally wide-angled and rounded at the base, sometimes acute, hairy beneath when young, becoming smooth at maturity except for a few hairs along the veins or in the main axils of the veins, or sometimes remaining more or less pubescent over the whole under surface, more or less glaucous beneath; flowers appear in April or May, on hairy pedicels 3-7 cm. long, the staminate and pistillate in clusters on the same or different trees; fruit ripening in autumn, samaras glabrous and usually 2-4 cm. long.

Distribution.—Newfoundland to Georgia, west to Manitoba and south to Texas. A frequent to a very common tree in all parts of Indiana. It is confined to rich uplands, or along streams in well drained alluvial soil. Throughout our area it is constantly associated with the beech. It is absent in the "flats" of the southeastern part of the State, and on the crest of the ridges of the "knob" area of Indiana, but it is a frequent or common tree on the lower slopes of the spurs of the "knobs."

Remarks.—The under surface of the leaves of the sugar maple in the northern part of its range are green, while those of the southern part of its range are quite glaucous beneath. To distinguish these two intergrading forms the southern form has been called Acer saccharum var. glaucum Sargent[61]. All of the trees seen in Indiana have leaves more or less glaucous beneath. This character, however, is not always evident in dried specimens. The writer prefers not to apply the varietal name to the forms of our area. The sugar maple always has been and will continue to be one of the most important trees of the State. In its mass distribution in Indiana it ranks not less than third. In the quality and uses of its wood it is equalled or exceeded only by the oak, ash and hickory. When compared with white oak it is a little lighter but thirty per cent stronger and fifty-three per cent stiffer. The greatest amount of the annual cut of maple is worked into flooring which is shipped to all parts of the world. It is much used in the manufacture of furniture and ranks third in use for veneer and hard wood distillation, and as a fuel wood is excelled only by hickory. Since pioneer times, the sap of this tree has been made into sirup and sugar and their manufacture now forms a valuable industry. On an average it takes 3 to 4 gallons of sap to make a pound of sugar, and an average sized tree will annually yield about 3 to 4 pounds of sugar.

Plate 115

The sugar maple on account of its slow growth has not been used much in reforestation. It is very tolerant of shade, can adapt itself to almost all kinds of soils, thrives either in a pure or mixed stand, and is practically free from injury of insects and diseases. It has, however, been extensively used as a shade tree. For this purpose it is scarcely excelled by any other tree. When grown in the open it almost invariably assumes a symmetrical oval form, and the autumnal coloration of its foliage is rarely surpassed by any of our trees. Where a large tree is desired for street or ornamental planting the sugar maple can safely be recommended.

5a. Acer saccharum variety Rugélii (Pax) Rehder. This variety of the sugar maple has leaves much wider than long, smaller and 3-lobed. The lobes are long acuminate and usually entire, sometimes the lower lobe has a small lobe near the base. This variety is included in our flora on the authority of C. S. Sargent who has given this name to specimens from Indiana in the writer's herbarium. The specimens so named are from the southern part of the State. While there is a wide range of difference in the shape of the leaves of the typical 5-lobed Acer saccharum and its variety Rugelii, all intermediate forms can be easily found. The leaves of a tree will vary most on those trees whose average shaped leaves are farthest from the typical form.

5b. Acer saccharum variety Schnéckii Rehder. This variety in its extreme form is well marked by having the petioles and under surface of the leaves densely covered with hairs. The variety is characterized by having a "fulvous pubescence," but the 18 specimens at hand show the color of the pubescence on both young and mature specimens to range from white to fulvous. The leaves of all specimens at hand are 5-lobed and show a variation of leaves with petioles and under surface of leaves densely pubescent to those with petioles glabrous and with densely pubescent under surface. The habitat is that of a dry soil and associated with beech. It has been found in Gibson, Martin, Perry, Posey and Vanderburgh counties.

AESCULÀCEAE. The Buckeye Family.

AÉSCULUS. The Buckeyes.

1. Æsculus glàbra Willdenow. Buckeye. Plate 116. Medium to large sized trees[62]; bark of old trees fissured, not tight; branchlets robust; twigs at first more or less pubescent, remaining more or less hairy until maturity; leaves large, 5-foliate, rarely 6 or 7 foliate, petioles more or less pubescent; leaflets sessile or on very short stalks, ovate-oblong, oval-oblong, or obovate, about 1 dm. long, acuminate, narrowed to a wedge-shaped base, more or less pubescent beneath until maturity, especially along the principal veins, margins irregularly serrate except near the base; flowers generally appear in May when the leaves are almost full size, but in the southern part of the State the flowers sometimes appear the last of March, flower clusters 1-1.5 dm. long, the whole inflorescence usually densely covered with white hairs, flowers pale-greenish yellow; fruit a globular spiny capsule, generally 3-6 cm. in diameter, which usually contains 1-3 large glossy chocolate-colored nuts.

The pubescence on the petioles, leaflets and inflorescence is generally white, but often with it are reddish and longer hairs which are scattered among the other hairs, except in the articulations of the flowers, pedicels and leaflets, where they appear in tufts.

Distribution.—Pennsylvania south to Alabama, west to Iowa and south to the Indian Territory. Found in all parts of Indiana. It is usually associated with beech, sugar maple and linn. On account of the poisonous character of its fruit, land owners have almost exterminated it.

From the data at hand it appears that the buckeye was a rare tree in the northern tier of counties. However, as soon as the basin of the Wabash is reached it becomes a frequent to a common tree where beech, sugar maple, and linn are found. In all of our area it prefers a rich moist soil, except in the southern counties it may be found even on the bluffs of streams with the species just named. In the lower Wabash Valley especially in Posey County it was a rare tree, or entirely absent.

Plate 116

Remarks.—In our area the buckeye is the very first tree to put out its leaves. On this account in early Spring it can be easily distinguished in the forest. This character together with its large clusters of flowers which appear early are features which recommend it for shade tree and ornamental planting. The tree has now become so rare in Indiana as to have no economic importance.

2. Æsculus octándra Marshall. Buckeye. Sweet Buckeye. Plate 117. Medium to large sized trees with smooth bark which on old trees becomes more or less scaly. This tree closely resembles the preceding from which it can be easily distinguished by the following characters. Its smoother and lighter colored bark; by the entire under surface of the leaves remaining permanently pubescent; the hairs more or less fulvous; by the included anthers; and by its smooth capsule.

Distribution.—Western Pennsylvania, westward along the Ohio to Iowa, south to Georgia and west to Louisiana and Texas. In Indiana it is confined to a few counties along the Ohio River. The records of McCaslin for Jay and Phinney for Delaware counties are doubtless errors in determination. The writer has diligently tried to extend the range of this species in Indiana and has found it only in Dearborn, Jefferson, Clark and Crawford Counties, and in no place more than a mile from the Ohio River. No doubt under favorable situations it found its way to a greater distance from the River. On account of the poisonous character of its fruit, it has been almost exterminated, and only along the precipitous bluffs of the Ohio River are trees yet to be found. Doubtless its exact range in our area can never be determined. Dr. Drake[63] minutely described this species and remarks: "This species delights in rich hills, and is seldom seen far from the Ohio River. It frequently arrives at the height of 100 feet and the diameter of four feet."

Remarks.—The wood is soft, white and resembles the sap wood of the tulip tree for which wood it is commonly sold. Too rare in Indiana to be of economic importance. Young[64] reported a purple flowered form of buckeye from Jefferson County, but since no specimen was preserved and the size of the plant is not given, it will not be considered here. The form was reported as rare under the name of Æsculus flava var. purpurascens.

Plate 117

TILIÀCEAE. The Linden Family.

TÍLIA. The Basswoods.

1. Tilia glàbra Ventenat (Tilia americana Linnæus of authors). Linn. Basswood. Plate 118. Medium to large sized trees with deeply furrowed bark, much resembling that of white ash or black walnut; twigs when chewed somewhat mucilaginous, usually somewhat zigzag; leaves on petioles 2-6 cm. long, blades ovate to nearly orbicular, 5-15 cm. long, short or long acuminate at the apex, margins more or less coarsely or finely serrate with teeth attenuate and ending in a gland, dark green and smooth above, a lighter green and generally smooth beneath at maturity except tufts of hairs in the axils of the principal veins, or sometimes with a scanty pubescence of simple or stellate hairs beneath; flowers appear in June or July, when the leaves are almost mature; bracts of the peduncles very variable, generally about 8-10 cm. long, rounded, or tapering at the base, obtuse or rounded at the apex, smooth both above and beneath at maturity; peduncles from very short up to 6 cm. in length; pedicels of flowers variable in length on the same and on different trees, generally about one cm. long; styles pubescent near the base on all of the specimens at hand; fruit woolly, globose or somewhat ellipsoidal, generally about 6 mm. in diameter.

Distribution.—New Brunswick to Manitoba, south to Georgia and west to Texas. More or less frequent to common in rich moist soil in all parts of Indiana. It is the most frequent and common in the lake area of the State but was almost as frequent and common throughout the central part of the State until the hilly area is reached where its habitat disappears for the greater part. In the hill area it is confined to the basins of streams, although sometimes found on the high rocky bluffs of streams. Rare or absent in the flats. In most of its area it is associated with white ash, slippery elm, beech, maple, shellbark hickory, etc.

Remarks.—Wood soft, light, straight and close-grained, white and seasons well. On account of its softness and lightness it has always been a favorite wood where these two factors were important considerations. Is practically odorless, hence, is a desirable wood to contain food products. Its principal uses are lumber, heading, excelsior and veneer. The supply of this species in Indiana is now practically exhausted.

Plate 118

In Indiana this species is commonly called linn, and only in a few counties near the Michigan line is it known as basswood. The name basswood is a corruption of the name bastwood, meaning the inner tough and fibrous part of the bark, which was used by pioneers for tying shocks of corn, and other cordage purposes. However, Dr. Schneck gives the name whittle-wood as one of its common names; and in some localities it is called bee tree, because bees find its flowers rich in honey.

Linn is adapted to a rich moist soil, transplants fairly well, and grows rapidly. It has been used to some extent as an ornamental and shade tree, but its use as a street shade tree is no longer recommended because it is not adapted to city conditions, and is killed by the scale. It could, however, be recommended as an integral part of a windbreak, or woodlot where the land owner has an apiary.

2. Tilia heterophylla Ventenat. Linn. White Basswood. Plate 119. Usually large trees; bark similar to the preceding but lighter in color; twigs similar to the preceding species; leaves on petioles 2-8 cm. long, blades ovate to nearly orbicular, generally 7-15 cm. long, generally oblique at the base, oblique-truncate or cordate at the base, abruptly short or long acuminate at the apex, margins serrate with teeth attenuate and ending in a gland, at maturity smooth and a dark yellow-green above, the under surface generally densely covered with a silvery or gray tomentum, however, on some specimens the pubescence is thin and appears as a stellate pubescence, the tufts of hairs in the principal axils of the veins are reddish brown, in addition to the pubescence reddish glands are often found on the veins beneath; flowers appear in June or July when the leaves are almost mature; bracts very variable. 4-15 cm. long, generally on short peduncles, rounded or wedge-shape at the base, generally rounded at the apex, sometimes merely obtuse, glabrous both above and below, or more or less densely pubescent beneath and generally sparingly pubescent above; pedicels of flowers variable in length, usually about 1 cm. long; styles of flowers pubescent at the base; fruit globose or somewhat ellipsoidal generally 6-8 mm. in diameter.

Distribution.—This species as understood by Sargent ranges from West Virginia to Indiana and south to Florida and west to Alabama. In Indiana it is confined to counties near the Ohio River. Specimens are in the writer's herbarium from Dearborn, Ripley, Switzerland, Jefferson, Clark, Harrison, Crawford, Perry, southeastern Dubois and east Spencer Counties. Practically in all of its range in Indiana it is found on the tops of high bluffs along streams or on the slopes of deep ravines. It is an infrequent to a common tree where found. In general in the counties just mentioned it supplants the other species of Tilia. It was reported from Wayne County by Phinney, and Schneck says a single tree was found near the mouth of White River. The last named tree may be Tilia neglecta which is said to be found just west in Illinois.

Plate 119

Remarks.—Wood and uses similar to that of the preceding species. In Indiana the species are not commercially separated.

A satisfactory division of the species of Tilia of the United States has long been a puzzle. C. S. Sargent[65] has recently published his studies of the species and credits Indiana with two species and one variety. His range of Tilia neglecta might include a part of Indiana, and it may be that the pubescent forms of Tilia glabra in our area should be referred to that species. Specimens No. 28043 and 28047 in the writer's herbarium collected from trees on the high bluff of Graham Creek in Jennings County, Sargent refers to Tilia heterophylla variety Michauxii Sargent. While Sargent's key to Tilia quite distinctly separates the species and varieties, yet when specimens are collected from an area where the species overlap and seem to intergrade, the task of referring a specimen to the proper species or variety is not an easy one. In fact the writer acknowledges his inability to satisfactorily classify our forms of Tilia, and the present arrangement should be accepted as provisional.

CORNÀCEAE. The Dogwood Family.

1. NYSSA. The Tupelos.

Nyssa sylvática Marshall. Gum. Black Gum. Sour Gum. Yellow Gum. Pepperidge. Plate 120. Medium to large sized trees; bark on old trees deeply and irregularly furrowed, the ridges broken up into small lengths; twigs at first pubescent, becoming glabrous; leaves oval-obovate or oblong, blades 5-12 cm. long on petioles 0.5-2 cm. long, rather abruptly acuminate at apex, narrowed at the base, sometimes rounded, margins entire, petioles and both surfaces pubescent when they unfold, becoming glabrous above and glabrous or nearly so beneath at maturity; flowers appear in May or June, the staminate in clusters, numerous, small greenish-white, the pistillate 2-8 or solitary; fruit ripens in autumn, a fleshy drupe, 1-3 of a cluster ripening on a pedicel 2-6 cm. long, ovoid, usually 10-12 mm. long, blue-black, sour and astringent; stone generally cylindric and tapering at each end and with 10-12 indistinct ribs.

Plate 120

Distribution.—Maine, southern Ontario, southern Michigan, southeastern Wisconsin[66] to Missouri and south to the Gulf. Found throughout Indiana and no doubt was a native of practically every county. It is an infrequent to a very rare tree in the northern half of the State, becoming a common tree in certain parts of the southern counties. In the northern part of the State it is usually found on dry ground associated with the oaks, although it is also found with sugar maple and beech.

Remarks.—Wood heavy, soft, very difficult to split. Woodsmen always speak of two kinds of black gum. There is one form which splits easily which is designated as "yellow gum." This distinction has not been substantiated. The uses of gum are many. The quality of not splitting makes many uses for it. The greater amount of gum is used as rough stuff. In the manufactures it is used for mine rollers, heading, boxes, hatter's blocks, water pipes, firearms, wooden ware, musical instruments, etc.

The distinctive habit of growth of the black gum together with the gorgeous coloring of the autumnal foliage recommend this species for ornamental planting. It has an upright habit of growth, although the trunk is more or less crooked. The crown when grown in the open is usually pyramidal, composed of horizontal crooked branches.

2. CÒRNUS. Dogwood.

Cornus flórida Linnæus. Dogwood. Flowering Dogwood. Plate 121. Usually a small tree[67] 1-2 dm. in diameter; bark deeply fissured, the ridges divided into short oblong, pieces; branchlets slender, in winter condition turning up at the tips; twigs green and smooth or nearly so from the first; leaves oval or slightly obovate, blades generally 5-12 cm. long on petioles about 1 cm. long, generally abruptly taper-pointed at apex, gradually narrowed and generally oblique at the base, margins thickened and entire, or very slightly crenulate, appressed pubescent both above and beneath, light green above and a grayish-green beneath; flowering heads surrounded by an involucre of 4 large white or pinkish bracts; the mature bracts are obovate, 2-4 cm. long, notched at the apex, appear before the leaves in April or May; flowers are in a head, numerous, small and greenish, opening usually about the middle of May as the leaves appear or even when the leaves are one-third grown; fruit ripens in September or October, an ovoid red drupe about 1 cm. long, usually about 3-5 flowers of a head mature fruit; stone elliptic and pointed at each end.

Plate 121

Distribution.—Southern Maine, southern Ontario, southern Michigan, to Missouri and south to Florida and west to Texas. Found in all parts of Indiana. Frequent to very common in all beech-sugar maple woods of the State. It is very rare or absent in the prairie area of the northwest part of the State, although it has been found in upland woods in all of the counties bordering Lake Michigan. It is also a frequent or more common tree in most parts of the State associated with white oak, or in the southern part of the State with black and white oak. It prefers a dry habitat, and is rarely found in wet situations.

Remarks.—Wood hard, heavy, strong, close-grained and takes a high polish. The Indians made a scarlet dye from the roots. It was used much by the pioneers for wedges, mallets and handles for tools. The trees are so small that they do not produce much wood. The present supply is used principally for shuttles, golfheads, brush blocks, engraver's blocks, etc.

The mature fruit is much relished by squirrels and birds.

The tree is quite conspicuous in the flowering season, and when the fruit is maturing. These features recommend it for ornamental planting, and it is used to some extent. The tree has a flat crown, and is quite shade enduring. It is very difficult to transplant, and when the tree is transplanted, if possible, some earth taken from under a live dogwood tree, should be used to fill in the hole where it is planted.

ERICÀCEAE. The Heath Family.

Oxydéndrum arbòreum (Linnæus) DeCandolle. Sour Wood. Sorrel Tree. Plate 122. Small trees with a gray and deeply fissured bark, much resembling that of a young sweet gum tree; twigs and branchlets greenish and smooth; leaves alternate, on petioles about a cm. long, oblong-oval, generally 10-15 cm. long, narrowed at the base, acute or acuminate at the apex, margins entire toward the base or sometimes all over, usually about three-fourths is irregularly serrate with very short incurved teeth, glabrous above and beneath except a puberulence on the midrib and sometimes on the petiole to which an occasional prickle is added beneath; flowers appear in June when the leaves are full grown, in large panicles at the end of the year's growth, white, the whole inflorescence covered with a short gray pubescence; fruit a capsule about 0.5 cm. long on an erect and recurved pedicel of about the same length, maturing in autumn.

Plate 122

Distribution.—A tree of the elevated regions of the area from southeastern Pennsylvania to Florida and west to southern Indiana and south to Louisiana. In Indiana it is definitely known to occur only in Perry County at the base of a beech spur of the Van Buren Ridge about 7 miles southeast of Cannelton. Here it is a common tree over an area of an acre or two. The largest tree measured was about 1.5 dm. in diameter and 12 meters high. Here it is associated with beech, sugar maple, dogwood, sassafras, etc. When coppiced it grows long slender shoots which the boys of the pioneers used for arrows. A pioneer who lived near this colony of trees is the author of this use of the wood and he called the tree "arrow wood."

EBENÀCEAE. The Ebony Family.

Diospyros virginiàna Linnæus. Persimmon. Plate 123. Small or medium sized trees with deeply and irregularly fissured bark, the ridges broken up into short lengths; twigs pubescent; leaves alternate, oval, oblong-oval or ovate, generally 8-15 cm. long and 3-7 cm. wide, narrowed, rounded or cordate at the base, short pointed at the apex, margin entire but ciliate, slightly pubescent above when young, becoming glabrous on age, more or less pubescent beneath, sometimes glabrous except the midrib and margin; flowers appear in May or June on the year's growth when the leaves are about half grown, greenish yellow, the staminate on one tree and the pistillate on another; fruit ripens in August, September or October, depressed-globose or oblong in shape, 2-3 cm. in diameter, generally with 1-4 very hard flat seed.

Distribution.—Connecticut to Iowa and south to the Gulf. In Indiana it is confined to the south half of the State. We have no record of wild trees being found north of Indianapolis, except Prof. Stanley Coulter reports three trees growing in Tippecanoe County in situations such as to indicate that they are native. It is doubtful if it was ever more than a frequent tree in the original forest. In some of the hill counties of the south central part of the State, it has become a common tree in clearings and abandoned fields. It grows long surface roots from which numerous suckers grow which form the "persimmon thickets." It seems to thrive in the poorest and hardest of soils. However, it reaches its greatest size in the alluvial bottoms of the Lower Wabash Valley. Here large and tall trees have been observed on the low border of sloughs, associated with such water-loving plants as water-locust, button-bush, swell-butt ash, etc. It thrives equally well on the high sandy ridges of Knox and Sullivan Counties.

Plate 123

Remarks.—The fruit is edible and the horticultural possibilities of this tree have never received the attention they deserve. The opinion is current that the fruit does not ripen and is not edible until it is subjected to a frost. This is an error. The best and largest fruit I have ever eaten ripened without a frost. A large native tree on the Forest Reserve in Clark County ripens its fruit in August, which is of an excellent quality and usually has only one, and rarely more than three seeds. The fruit of this tree is of the oblong type. The fruit varies much in size, time of ripening and quality. Some is scarcely edible. Some of the native trees bear fruit when they are not over eight feet tall, some are usually prolific bearers while others bear sparingly. For this reason if one wishes to grow persimmon trees it is best to buy grafted trees from some reliable nurseryman. The tree is hardy throughout Indiana and while it is a very slow growing tree, it can nevertheless be recommended for ornamental and roadside tree planting. It is to be noted that cattle will not browse persimmon, and that hogs greedily eat the ripe fruit. The fruit of many trees does not fall until early winter, and such trees are a granary for several kind of animals of the forest.

The wood is hard, heavy, strong and close-grained. Practically the whole output of persimmon lumber is used in making shuttles. In Indiana the tree is too rare to furnish much lumber.

OLEÀCEAE. The Olive Family.

1. FRÁXINUS. The Ashes.

1. Fraxinus americàna Linnæus. White Ash. Gray Ash. Plate 124. Large trees with deeply furrowed bark; twigs smooth, greenish gray and often covered with a bloom; leaves generally 2-3.5 dm. long, rachis smooth; leaflets 5-9, usually 7, generally 5-14 cm. long, on stalks generally 0.3-1 cm. long, the terminal one on a stalk 2-4 times as long, leaflets ovate to narrow-oblong, narrowed, rounded or oblique at base, short or long acuminate at apex, sometimes merely acute, margins entire or irregularly serrate, usually not serrated to the base, teeth short, dark green and smooth above, glaucous beneath, sometimes almost green beneath about Lake Michigan and in the northern tier of counties, usually pubescent beneath along the midrib and along the veins, sometimes glabrous; calyx persistent on the fruit, about 1 mm. long; fruit ripens in September and October, linear, 3-4.5 cm. long, variable in size and shape, body of samara cylindrical, somewhat narrower than the wing and usually ¹/₃-¹/₄ the length of the samara, each face of the body usually striated longitudinally with about 8 faint lines; wing terminal, generally about 0.5 cm. wide, pointed or notched at apex.

Distribution.—Nova Scotia to Minnesota and south to the Gulf. Frequent to common in all parts of Indiana. It is the most abundant in the northern two-thirds of the State, where it is associated principally with beech, sugar maple, linn, slippery elm and red oak. In the hilly part of the State it is found principally near water courses and in ravines, and rarely on the white and black oak ridges. It is rarely found in the low "flats" of the southeast part of the State, or in the shingle oak bottoms along the Patoka River.

Remarks.—The foliage of the white ash is quite variable in the texture of the leaflets. Leaflets on some trees are quite thin while those of other trees are thick and leathery, and no doubt would be classed by Sargent as variety subcoriacea[68].

Plate 124