Chapter L: Section 2: Gamopetalæ. Corolla of united petals (divided in Elliottia (3)

A slender tree, 25°—30° high, with a long trunk 8′—10′ in diameter, small light brown slightly ridged branches and slender branchlets hoary-tomentose when they first appear, becoming pubescent or nearly glabrous by the end of their first season and light gray-brown in their second year; or a shrub only a few feet tall. Winter-buds ovoid, acute, slightly compressed, villose, about ⅛′ long. Bark of the trunk thick, dark brown or nearly black, and divided by deep longitudinal furrows into narrow rounded rough ridges.

Distribution. Northern Florida, in sandy uplands (St. John, Clay, Jackson, Gadsden and Lafayette Counties); not common; Alabama (Lee County); eastern Mississippi (Laurel, Jones County), and eastern Oklahoma (near Page, Le Flore County).

4. Halesia diptera Ellis.

_Mohrodendron dipterum_ Britt.

Leaves ovate to obovate, oval or elliptic, abruptly long-pointed or rarely rounded at apex, gradually narrowed and cuneate or rounded at base, undulate-serrate with remote minute callous teeth, coated below with pale tomentum and pubescent above when they unfold, and at maturity thin, light green and glabrous or pubescent on the slender midrib on the upper surface and paler and soft-pubescent on the lower surface, 3′—4′ long and 2′—2½′ wide, and at the end of vigorous branches up to 8′ long and 3′ wide, with pale conspicuous arcuate veins and reticulate veinlets; petioles slender, pubescent, ½′—¾′ in length. Flowers opening from the middle of March to the end of April, usually nearly 1′ long, on slender tomentose pedicels 1½′—2′ in length, from the axils of obovate puberulous bracts rounded or acute at apex and ½′—¾′ long, in few-flowered fascicles or in 4—6-flowered racemes; calyx thickly covered with hoary tomentum, the short lobes nearly glabrous on the inner surface; corolla puberulous on the outer surface, divided nearly to the base into slightly obovate or oval spreading lobes; stamens 8—16, usually 8, nearly as long as the corolla; filaments covered with pale hairs, and sometimes free from the corolla; ovary usually 2, rarely 4-celled and covered, like the style, with pale pubescence. Fruit oblong to slightly obovoid, compressed, 1½′—2′ long, often nearly 1′ wide, with two broad wings and often with 2 or rarely 3 narrow wings between them; stone ellipsoid, 1½′—1¾′ long, conspicuously ridged, gradually narrowed below into the short slender stipe and above into the thickened pubescent style; seed acuminate at the ends, about ¾′ in length.

A tree, occasionally 30° high, with a short or rarely a tall trunk 8′—10′ in diameter, spreading branches forming a wide head and slender branchlets light green and more or less thickly covered with pale pubescence when they first appear, usually becoming glabrous, orange color, or reddish brown, lustrous and marked by the large elevated obcordate leaf-scars during their first winter, dark red-brown in their second season and dividing the following year into irregular pale longitudinal fissures; more often a shrub, with numerous stout spreading stems. Winter-buds ovoid, obtuse, 1/16′ long, with broad-ovate acute light red pubescent scales, those of the inner ranks becoming strap-shaped, scarious and ¼′ long. Bark of the trunk ⅓′—½′ thick, brown tinged with red, and divided by irregular longitudinal often broad fissures, and separating into small thin closely appressed scales. Wood light, soft, strong, close-grained, light brown with thick lighter-colored sapwood.

Distribution. Low wet woods and the borders of swamps and streams; near Savannah (_Elliott_) and in southwestern Georgia, western Florida (Leon and Gadsden Counties), southern Alabama, Mississippi and Louisiana to the valley of the lower Neches River, Texas, and to southwestern Arkansas (Miller County).

Occasionally cultivated in the gardens of the eastern United States and western Europe. Doubtfully hardy in Massachusetts and western New York.

2. STYRAX L.

Trees or shrubs, lepidote or stellate-tomentose except on the upper surface of the leaves, with slender terete slightly zigzag branchlets, without a terminal bud, axillary buds, with imbricated scales, and fibrous roots. Leaves involute in the bud, entire or slightly serrate. Flowers usually white on short ebracteolate drooping pedicels from the axils of small bracts, in simple or branched usually drooping axillary racemes; calyx cup-shaped, adnate to the base of the ovary or nearly free, the margin truncate, obscurely or conspicuously 5-toothed or rarely 2 or 5-parted; corolla epigynous, campanulate, 5 or rarely 6 or 7-parted, with a short tube usually longer than the lanceolate oblong or spatulate erect and spreading or revolute lobes valvate or imbricated in the bud, stamens 8—13, usually 10, longer than the corolla slightly united below into a ring or short tube; filaments flattened above; cells of the anthers linear parallel, erect; ovary broad-conic, subglobose or depressed, densely villose or rarely glabrous, at first 3-celled, becoming 1-celled or nearly 1-celled after anthesis, crowned by a subulate or thickened style terminating in a small indistinctly 3-lobed or capitate stigma; ovules few or rarely solitary, ascending; raphe dorsal, micropyle inferior. Fruit globose or slightly obovoid, drupaceous; pericarp hard and indehiscent or irregularly 3-valved or fleshy and irregularly dehiscent; endocarp glabrous, crustaceous or indurate; seed 1 by abortion or very rarely 2, filling the cavity of the stone, erect; testa membranaceous, mostly adherent to the walls of the stone; albumen fleshy or rarely horny; cotyledons usually broad, the elongated terete radicle turned toward the broad basal hilum.

Styrax is widely distributed in warm and tropical countries except in tropical and south Africa and in Australasia, extending northward into the southeastern United States and to California, southern Europe, central and western China and central Japan. Of nearly one hundred species which are now distinguished five are found within the territory of the United States; one of these occasionally becomes a small tree.

Storax and benzoin, aromatic resinous balsams, are obtained from _Styrax officinale_ L. of southern Europe and Asia Minor, and from _Styrax Benzoin_ Dryand. of Malaysia.

The generic name is that of the Greek name of _Styrax officinale_.

1. Styrax grandiflora Ait.

Leaves thin, deciduous, obovate, rounded and abruptly pointed or acute or acuminate or rarely rounded at apex, cuneate or rounded at the narrow base, entire or remotely serrate with small apiculate teeth, when they unfold ciliate on the margins, slightly stellate-pubescent on the midrib and veins above, and coated below with hoary tomentum, and at maturity pale green and glabrous or nearly glabrous above, pale tomentose and villose on the midrib and veins below, 2½′—5′ long and 1′—3′ wide; petioles ¼′ in length, hoary-tomentose early in the season, becoming pubescent. Flowers opening in early spring after the leaves are more than half grown, ¾′—1′ long, on slender pubescent or tomentose pedicels ¼′ in length, in tomentose leafy erect or spreading axillary racemes 5′ or 6′ long, their bracts and bractlets linear, minute, tomentose, caducous; calyx more or less coarsely 5-toothed, membranaceous, tomentose on the outer surface; corolla 5-parted, the lobes longer than the tube, imbricated in the bud, membranaceous, oblong-obovate, rounded or acute at apex, stellate-pubescent on the outer surface; stamens 10, about as long as the corolla, villose-pubescent below the middle, united below into a short ring; ovary slightly inferior, obovoid, tomentose, 3-celled; style filiform, glabrous, exserted; ovules 3 or 4 in each cell. Fruit hoary-tomentose, slightly obovoid, rounded and tipped at apex with the remnants of the style, gradually narrowed and surrounded below by the calyx, ⅓′ long, and ¼′ in diameter, the outer coat crustaceous, indehiscent; seed obovoid, dark orange-brown, filling the cavity of the fruit.

A tree, rarely 40° high, with a tall straight trunk sometimes 8′ in diameter, short spreading branches forming a narrow round-topped head, and slender branchlets thickly coated when they first appear with hoary stellate pubescence more or less persistent during three seasons, ultimately glabrous and light or dark chestnut-brown; more often a broad shrub 6°—20° high. Bark of the trunk ⅓′—½′ thick, close, smooth and dark red-brown. Winter-buds: axillary, often 3, superposed, acute, covered with hoary ultimately rusty tomentum, about ⅛′ long.

Distribution. Low wet woods and the borders of swamps; southeastern Virginia, southward usually near the coast to the valley of the Apalachicola River, Florida, and through the Gulf states to western Louisiana, ranging inland to northern Georgia, northeastern Mississippi, and to the valley of the Red River at Natchitoches, Louisiana; of its largest size and perhaps only arborescent near Laurel Hill, West Feliciana Parish, Louisiana.

LIX. SYMPLOCACEÆ.

Trees or shrubs, with simple pubescence, watery juice, scaly buds, and fibrous roots. Leaves simple, alternate, coriaceous or thin, pinnately veined, usually becoming yellow in drying, without stipules. Flowers regular, perfect, or polygamo-diœcious, on ebracteolate pedicels, in dense or lax axillary spikes or racemes, with small caducous bracts; calyx campanulate, 5-lobed, open in the bud, the tube adnate to the ovary, enlarged after anthesis; corolla divided nearly to the base into 3—11 usually 5 lobes imbricated in the bud; disk 0; stamens usually numerous, inserted in many series on the base of the corolla or rarely 4 in one series; filaments filiform or flattened, more or less united below into clusters; anthers ovoid-globose, introrse, 2-celled, the cells lateral, opening longitudinally; ovary inferior or partly inferior, 2—5-celled, contracted into a simple style, with an entire or slightly lobed terminal stigma; ovules 2 or rarely 4 in each cell, suspended from its inner angle, anatropous; raphe ventral; micropyle superior. Fruit a drupe (in the North American species), crowned with the persistent lobes of the calyx, with thin dry flesh and a bony 1-seeded stone. Seed oblong, suspended; seed-coat membranaceous; embryo terete, erect in copious fleshy albumen; cotyledons much shorter than the long slender radicle turned toward the broad conspicuous hilum.

The family consists of the genus Symplocos.

1. SYMPLOCOS L’Her.

Characters of the family.

Symplocos with nearly three hundred species inhabits chiefly the warmer parts of America, Asia, and Australia, one species occurring in the southern United States.

Symplocos contains a yellow coloring matter, and the bark and leaves of some species have medical properties.

The generic name, from Σύµπλοκος, relates to the union of the filaments of some of the species.

1. Symplocos tinctoria L’Her. Sweet Leaf. Horse Sugar.

Leaves revolute in the bud, oblong, acute or acuminate at apex, gradually narrowed at base, obscurely crenulate-serrate with remote teeth, or sometimes nearly entire, coated below when they unfold with pale tomentum, glabrous or tomentose above, and furnished on the margins with minute dark caducous glands, and at maturity subcoriaceous, dark green and lustrous on the upper surface, paler and pubescent on the lower surface, 5′—6′ long and 1′—2′ wide, with a broad midrib rounded and sometimes puberulous on the upper side, inconspicuous arcuate veins and reticulate veinlets; northward and at high altitudes falling in the autumn, and southward remaining on the branches until after the opening of the flowers the following spring; petioles stout, slightly winged, ⅓′—½′ in length. Flowers: flower-clusters inclosed in the bud by ovate acute orange-colored scales brown and ciliate on the margins, each of the flower-buds surrounded by 3 imbricated oblong bracts rounded or pointed at apex and ciliate on the margins, the longest as long as the calyx and one third longer than the 2 lateral bracts; flowers fragrant, opening from the 1st of March at the south to the middle of May on the southern Appalachian Mountains, on short pedicels enlarged into thick hemispheric receptacles covered with long white hairs, in nearly sessile many-flowered clusters in the axils of leaves of the previous year; calyx oblong, cup-shaped, dark green and puberulous, with minute ovate scarious lobes rounded at apex; corolla creamy white, ¼′ long, with rounded lobes; stamens exserted, with slender filaments united at base into 5 clusters, and orange-colored anthers; ovary 3-celled, furnished on the top with 5 dark nectariferous glands placed opposite the lobes of the calyx, and abruptly contracted into a slender style gradually thickened toward the apex and longer than the corolla. Fruit ripening in the summer or early autumn, ovoid, ¼′ long, dark orange-colored or brown; seed ovoid, pointed, with a thin papery chestnut-brown coat.

A tree, occasionally 30°—35° high, with a short trunk barely exceeding 6′-8′ in diameter, slender upright branches forming an open head, and stout terete pithy branchlets light green and coated with pale or rufous tomentum when they first appear, or sometimes glabrous, and covered with scattered white hairs, reddish brown to ashy gray, tinged with red and usually more or less pubescent or often covered with a glaucous bloom during their first and second years, later growing darker, roughened by occasional small elevated lenticels and marked by the low horizontal obcordate leaf-scars displaying a central cluster of large fibro-vascular bundle-scars; or more often a shrub. Winter-buds ovoid, acute, covered with broad-ovate nearly triangular acute scales, those of the inner rows accrescent on the young branchlets, and at maturity oblong-obovate, rounded and often apiculate at apex, light green, glabrous or pilose, ciliate on the margins, and often ½′ in length. Bark of the trunk ⅓′—½′ thick, ashy gray slightly tinged with red, divided by occasional narrow fissures and roughened by wart-like excrescences. Wood light, soft, close-grained, light red or brown, with thick lighter colored often nearly white sapwood of 18—20 layers of annual growth. The leaves are sweet to the taste and are devoured in the autumn by cattle and horses, and, like the bark, yield a yellow dye occasionally used domestically. The bitter aromatic roots have been used as a tonic.

Distribution. Moist rich soil, often in the shade of dense forests; peninsula of Delaware to northern Florida and from the coast to altitudes of nearly 4000° on the Blue Ridge in North and South Carolina, and to eastern Texas and southern Arkansas; in the Gulf states usually along the borders of Cypress-swamps.

LX. OLEACEÆ.

Trees or shrubs, with watery juice, scaly buds, their inner scales accrescent, opposite leaves, without stipules, and fibrous roots. Flowers perfect, diœcious or polygamous, regular; calyx 4-lobed, or 0; corolla of 2—4 petals, or 0; disk 0; stamens 2—4, rudimentary or 0 in unisexual pistillate flowers; anthers attached on the back below the middle, often apiculate by the prolongation of the connective, introrse, 2-celled, the cells opening longitudinally usually by lateral slits; ovary free, 2 or rarely 3-celled, rudimentary or 0 in the staminate flower; style simple; ovules 2 in each cell, pendulous, anatropous; micropyle superior. Fruit (in the North American arborescent genera) a samara or berry. Seed pendulous; seed-coat membranaceous; embryo straight in copious fleshy albumen; cotyledons flat, much longer than the short terete superior radicle turned toward the minute hilum.

The Olive family with twenty-five genera is widely distributed in temperate and tropical regions chiefly in the northern hemisphere. Of the five genera indigenous to the United States four are arborescent. To this family belong _Olea europæa_ L., the Olive-tree of the Mediterranean basin, now largely cultivated in California for its fruit, and the Lilacs, Forsythias, Privets, and Jasmines, favorite garden plants in all countries with temperate climates.

CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES.

Fruit a winged samara; leaves usually compound.
1. Fraxinus.
Fruit a drupe; leaves simple.
Flowers usually without petals.
2. Forestiera.
Flowers with petals.
Corolla of 4 long linear petals united only at base; leaves
deciduous.
3. Chionanthus.
Corolla tubular; leaves persistent.
4. Osmanthus.

1. FRAXINUS L. Ash.

Trees or shrubs, with thick furrowed or rarely thin and scaly bark, usually ash-colored branchlets, with thick pith, and compressed obtuse terminal buds much larger than the lateral buds. Leaves petiolate, unequally pinnate or rarely reduced to a single leaflet, deciduous; leaflets conduplicate in the bud, usually serrate, petiolulate or sessile. Flowers diœcious or polygamous, produced in early spring on slender elongated pedicels, without bractlets, in open or compact slender-branched panicles, with obovate linear or lanceolate caducous bracts, terminal on leafy shoots of the year, developed from the axils of new leaves, or from separate buds in the axils of leaves of the previous year, or at the base of young branchlets, and covered by 2 ovate scales; calyx campanulate, deciduous or persistent under the fruit, or 0; corolla 2—4-parted, the divisions conduplicate in the bud, united at base, or 0; stamens usually 2, rarely 3 or 4, inserted on the base of the corolla, or hypogynous; filaments terete, short or rarely elongated; anthers ovoid or linear-oblong, the cells opening by lateral slits; ovary 2 or rarely 3-celled, contracted into a short or elongated style terminating in a 2-lobed stigma; ovules suspended in pairs from the inner angle of the cell; raphe dorsal. Fruit a 1 or rarely 2 or 3-seeded winged samara; body terete or slightly flattened contrary to the septum, with a dry or woody pericarp produced into an elongated more or less decurrent wing, usually 1-celled by abortion or sometimes 2 or 3-celled and winged. Seed solitary in each cell, oblong, compressed, gradually narrowed and rounded at the ends, filling the cavity of the fruit; seed-coat chestnut-brown.

Fraxinus with thirty to forty species is widely distributed in the temperate regions of the northern hemisphere, and within the tropics occurs on the islands of Cuba and Java. Of the eighteen North American species here recognized all, with the exception of _Fraxinus dipetala_ Hook., of California, are large or small trees.

Fraxinus produces tough straight-grained valuable wood, and some of the species are large and important timber-trees. The waxy exudations from the trunk and leaves of _Fraxinus Ornus_ L., of southern Europe and Asia Minor furnish the manna of commerce used in medicine as a gentle laxative; and the Chinese white wax is obtained from the branches of _Fraxinus chinensis_ Roxb.

_Fraxinus_ is the classical name of the Ash-tree.

CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES.

Flowers with a corolla, in terminal panicles on lateral leafy
branchlets of the year; leaflets 3—7, lanceolate to
ovate-lanceolate (Ornus).
1. F. cuspidata (E, H).
Flowers without a corolla, diœcious or polygamous, in axillary
panicles, from separate buds, in the axils of leaves of the
previous year (Fraxinastrum).
Flowers with a calyx.
Leaflets with obscure veins, not more than ¾′ long; fruit
narrow-spatulate to oblong-obovate; rachis slightly winged.
2. F. Greggii (E).
Leaflets with distinct veins, more than ¾′ long; rachis without a
wing.
Body of the fruit compressed, its wing extending to the base.
Branchlets 4-sided.
Leaves usually 5-foliolate, with ovate acute leaflets;
flowers unknown.
3. F. Lowellii (F).
Leaves usually reduced to a single ovate or orbicular
leaflet; flowers polygamous.
4. F. anomala (F).
Branchlets terete.
Leaflets 5—7, oblong-ovate; fruit oblong-elliptic to
spatulate, often 3-winged, long-stipitate.
5. F. caroliniana (A, C).
Leaflets 3—5, oblong; fruit lanceolate to oblanceolate, the
body extending to the base of the fruit.
6. F. pauciflora (C).
Body of the fruit nearly terete.
Wing of the fruit terminal or slightly decurrent on the body.
Leaves and branchlets glabrous (_tomentose in one form of
7_).
Leaflets sessile or nearly sessile 5—7 rarely 5, ovate to
oblong-ovate, rarely elliptic, acute or
short-acuminate, glaucescent below.
7. F. Standleyi (H).
Leaflets stalked.
Leaflets 5—7, ovate to lanceolate, abruptly pointed or
acuminate, usually pale below.
8. F. americana (A, C).
Leaflets usually 5, ovate to obovate, rounded or acute
at apex.
9. F. texensis (C).
Leaves and branches pubescent; leaflets oblong-ovate to
lanceolate, pale below; fruit linear-oblong.
10. F. biltmoreana (A, C).
Wing of the fruit decurrent to below the middle of the body.
Leaflets 7—9, usually 7; leaves and branches pubescent
(_glabrous in one form of 12_).
Fruit 2′—3′ in length.
11. F. profunda (A, C).
Fruit 1′—2½′ in length.
12. F. pennsylvanica (A, E).
Leaflets 3—5.
Leaves and branchlets glabrous; fruit up to 1½′ in length.
13. F. Berlandieriana (C, E).
Leaves and branchlets pubescent or glabrous; fruit not
more than ½′ in length.
14. F. velutina (F, H).
Leaflets 5—7, usually 7, the lateral generally sessile;
leaves and branchlets pilose-pubescent, rarely
glabrous.
15. F. oregona (B, G).
Flowers without a calyx; leaflets 5—11; wing of the fruit decurrent
to the base of the body.
Branchlets quadrangular; lateral leaflets short-stalked.
16. F. quadrangulata (A, C).
Branchlets terete; lateral leaflets sessile.
17. F. nigra (A, C).

1. Fraxinus cuspidata Torr.

Leaves 5′—7′ long, with a slender pale petiole sometimes slightly wing-margined, and 3—7 lanceolate or ovate-lanceolate long-stalked leaflets gradually narrowed at apex into a long slender point, cuneate at base nearly entire or coarsely and remotely serrate above the middle with recurved teeth (var. _serrata_ Rehd.), or with 3—5, rarely 7-foliolate leaves, with broader often ovate entire leaflets occasionally with simple leaves at the base of the branchlets (var. _macropetala_ Rehd.); slightly puberulous when they unfold on the lower surface, and at maturity thin, dark green above, paler below, 1½′—2½′ long and ¼′—¾′ wide, with a pale midrib and obscure veins; petiolules slender, sometimes nearly 1′ in length. Flowers perfect, extremely fragrant, appearing in April, in open glabrous panicles 3′—4′ long and broad, terminal on lateral leafy branchlets developed from the axils of leaves of the previous year, calyx cup-shaped, 1/16′ long, with acute apiculate attenuate teeth of unequal length, deciduous, corolla ⅔′ long, thin and white, divided to below the middle into 4 linear-oblong lobes pointed at apex, and much longer than the nearly sessile oblong long-pointed anthers ovary 2-celled, with a thick 2-lobed nearly sessile stigma. Fruit elliptic to oblong-obovate, 1′ long and ¼′ wide, the wing round and slightly emarginate at apex, and decurrent nearly to the base of the flat nerveless longer body.

A tree, rarely 20° high, with a short trunk 6′—8′ in diameter, and slender terete branchlets light red-brown when they first appear, soon becoming darker and marked by scattered pale lenticels and ashy gray and roughened by the dark elevated lunate leaf-scars in their second year; more often a shrub or small shrubby tree, with numerous slender spreading stems 6°—8° tall. Winter-buds: terminal acute, nearly ½′ long, with dark reddish brown glutinous scales.

Distribution. Rocky slopes and dry ridges; Western Texas, valley of the Rio Grande (mouth of Devil’s River, Valverde County) to the Chisos Mountains, and in southern New Mexico; in Coahuila, Nuevo Leon and Chihuahua; the var. _macropetala_ in cañons of northern Arizona; the var. _serrata_ (fig. 738) in Coahuila.

2. Fraxinus Greggii A. Gray.

Leaves 1½′—3′ long, with a winged petiole and rachis, and 3—7 narrow spatulate to oblong-obovate leaflets entire or crenately serrate above the middle with remote teeth, a slender midrib, and obscure reticulate veins, thick and coriaceous, dark green on the upper surface rather paler and covered with small black dots on the lower surface, ½′—¾′ long, ⅛′—¼′ wide, and nearly sessile. Flowers perfect or unisexual, on slender pedicels ⅛′—¼′ long, from the axils of ovate acuminate rusty-pubescent bracts, in pubescent panicles ½′—¾′ in length; calyx campanulate, scarious; stamens 1 or 2, filaments longer than the calyx, anthers declinate, nearly ⅛′ long; ovary broad-ovate, rounded at apex, longer than the calyx, the short style terminating in large reflexed stigmatic lobes. Fruit narrow-spathulate to oblong-obovate, ½′—⅔′ long and about ¼′ wide, the thin wing decurrent on the short terete body, rounded and emarginate at apex and tipped with the elongated persistent conspicuous style.

A tree, rarely 20°—25° high, with a trunk 8°—10° long and occasionally 8′ in diameter, and slender terete branchlets dark green and puberulous when they first appear, soon becoming ashy gray and roughened by numerous minute pale elevated lenticels, gradually turning dark gray, or brown in their second and third years; more often a shrub, with numerous slender erect stems 4°—12° tall. Winter-buds: terminal, about ⅛′ long, obtuse, with thick ovate light brown pubescent scales rounded on the back. Bark of the trunk thin, gray or light brown tinged with red, separating on the surface into large papery scales. Wood heavy, hard, close-grained, brown, with thick lighter-colored sapwood.

Distribution. Western Texas, along rocky beds of streams and deep ravines, Valverde County (near Devil’s River, Del Rio and Comstock); on the mountains of northeastern Mexico; apparently most common and of its largest size on the Sierra Nevada of Nuevo Leon.

3. Fraxinus Lowellii Sarg.

Leaves 3½′—6′ long, with a stout glabrous or slightly villose petiole, and 5 or rarely 3 ovate stalked leaflets, acuminate and long-pointed, acute or rarely rounded at apex, cuneate at base, serrate, often only above the middle, with small remote teeth, yellow-green, glabrous, or puberulous along the midrib above, glabrous or rarely sparingly villose near the base of the slender pale midrib below, 2¼′—3′ long and 1′—1½′ wide, with thin primary veins arching and united near the slightly thickened and revolute margins; on vigorous shoots occasionally 1-foliolate with a broad-ovate or semiorbicular leaflet. Flowers unknown. Fruit ripening in July, in long glabrous panicles, oblong-obovate to oblong-elliptic, surrounded at base by the minute slightly dentate calyx, 1′—1½′ long, ¼′—⅓′ wide, the wing broad or gradually narrowed and rounded, and often emarginate at apex and extending to the base of the thin compressed many-rayed body about three-quarters the length of the fruit.

A tree, 20°—25° high, with dark deeply furrowed bark, stout quadrangular often winged branchlets orange-brown in their first season and dark gray-brown the following year.

Distribution. Arizona, rocky slopes of Oak Creek Cañon about twenty miles south of Flagstaff, Coconino County, and in Copper Cañon, west of Camp Verde, Yavapai County.

4. Fraxinus anomala S. Wats.

Leaves mostly reduced to a single leaflet but occasionally 2 or 3-foliolate, the leaflets broad-ovate or orbicular, rounded or acute or rarely obcordate at apex, cuneate or cordate at base, and entire, or sparingly crenately serrate above the middle, covered above when they unfold with short pale hairs and pubescent beneath, and at maturity thin but rather coriaceous, dark green above, paler below, 1½′—2′ long and 1′—2′ wide, or when more than one much smaller, with a broad rather conspicuous midrib and obscure veins, and when solitary raised on a stout grooved petiole rusty-pubescent early in the season, becoming glabrous, and often 1½′ long, or short-petiolulate in the compound leaves. Flowers appearing when the leaves are about two thirds grown, in short compact pubescent panicles, with strap-shaped or lanceolate acute bracts ½′ long and covered with thick brown villose tomentum, perfect or unisexual by the abortion of the stamens, the 2 forms occurring in the same panicle; calyx cup-shaped, minutely 4-toothed; anthers linear-oblong, orange colored, raised on slender filaments nearly as long as the stout columnar style. Fruit obovate, ½′ long, the wing rounded and often deeply emarginate at apex, surrounding the short flattened striately nerved body, and ⅓′ wide.

A tree, 18°—20° high, with a short trunk 6′—7′ in diameter, stout contorted branches forming a round-topped head, and branchlets at first quadrangular, dark green tinged with red and covered with pale pubescence, orange colored and puberulous in their first winter and marked by elevated pale lenticels and narrow lunate leaf-scars, and in their second or third year terete and ashy gray; often a low shrub, with numerous spreading stems. Winter-buds: terminal broad-ovoid, acuminate or obtuse, covered with thick orange-colored tomentum, and ⅛′—¼′ long. Bark of the trunk dark brown slightly tinged with red, ¼′ thick and divided by shallow fissures into narrow ridges separating into small thin appressed scales. Wood heavy, hard, close-grained, light brown, with thick lighter colored sapwood of 30—50 layers of annual growth.

Distribution. In the neighborhood of streams; valley of the McElmo River, southwestern Colorado; Carriso Mountains, San Juan County, northwestern New Mexico; northeastern (Apache County), and the Grand Cañon of the Colorado River, Coconino County, Arizona; southern Utah to the Charleston Mountains, southwestern Nevada and adjacent California (Inyo County).

5. Fraxinus caroliniana Mill. Water Ash. Swamp Ash.

Leaves 7′—12′ long, with an elongated stout terete pale petiole, and 5—7 long-stalked ovate to oblong acute or acuminate leaflets rarely rounded at apex, cuneate or sometimes rounded or subcordate at base, and coarsely serrate with acute incurved teeth, or entire, pilose above and more or less hoary-tomentose below when they unfold, and at maturity thick and firm, 3′—6′ long and 2′—3′ wide, dark green above, paler or sometimes yellow-green and glabrous or pubescent (var. _Rehderiana_ Sarg.) beneath, particularly along the conspicuous midrib and the numerous arcuate veins connected by obscure reticulate veinlets. Flowers diœcious, appearing in February and March in short or ultimately elongated panicles inclosed in the bud by chestnut-brown pubescent scales; staminate flower with a minute or nearly obsolete calyx, and 2 or sometimes 4 stamens, with slender filaments and linear apiculate anthers; calyx of the pistillate flower cup-shaped, deeply divided and laciniate, as long as the ovary gradually narrowed into an elongated slender style. Fruit elliptic to oblong-obovate, frequently 3-winged, surrounded at base by the persistent calyx, 2′ long, ⅓′—¾′ wide, often marked on the 2 faces by a conspicuous impressed midvein, the body short, compressed, and surrounded by the broad thin many-nerved sometimes bright violet-colored wing, acute or acuminate, or rounded and emarginate at apex and usually narrowed below into a stalk-like base.

A tree, rarely more than 40° high, with a trunk sometimes 12′ in diameter, small branches forming a narrow often round-topped head, and slender terete branchlets light green and glabrous or tomentose when they first appear, light brown tinged with red and sometimes covered with a glaucous bloom or rarely pubescent or tomentose (var. _Rehderiana_ Sarg.) in their first winter, becoming in their second year light gray or yellow, occasionally marked by large pale lenticels, and by the elevated semiorbicular leaf-scars displaying a short row of conspicuous fibro-vascular bundle-scars. Winter-buds: terminal, ⅛′ long, with 3 pairs of ovate acute chestnut-brown puberulous scales, those of the outer rank thickened at base, rounded on the back, and shorter than the others. Bark of the trunk 1/16′—⅛′ thick, light gray, more or less marked by large irregularly shaped round patches, and separating on the surface into small thin closely appressed scales. Wood light, soft, weak, close-grained, nearly white sometimes tinged with yellow, with thick lighter colored sapwood.

Distribution. Deep river swamps inundated during several months of the year, usually under the shade of larger trees, or rarely in drier ground; coast region of the Atlantic and Gulf states, valley of the Potomac River, Virginia, near Washington, D.C., to Florida southward to Lake County and on the west coast to the valley of the lower Apalachicola River, and to the valley of the Neches River (Beaumont, Jefferson County), Texas, and northward through western Louisiana to southwestern (Malvern, Hot Springs County) Arkansas; east of the Mississippi River occasionally appearing in isolated stations remote from the coast (Anson County, North Carolina, _C. L. Boynton_, Pike County, Georgia, _R. H. Harper_, Forest County, Mississippi, _T. G. Harbison_); in Cuba.

6. Fraxinus pauciflora Nutt. Water Ash.

_Fraxinus floridana_ Sarg.

Leaves 5′—9′ long, with an elongated stout terete petiole, and 3—7, usually 5, elliptic to oblong-obovate or ovate leaflets, acuminate or rarely abruptly pointed at apex, gradually narrowed and rounded at the often unsymmetric base, finely or coarsely serrate, scurfy-pubescent above and hoary-tomentose below when they unfold, and at maturity thick and firm, dark green and glabrous or puberulous on the upper surface and more or less tomentose on the lower surface, 3′—4′ long and 1′—1¼′ wide, with a slender midrib, and thin primary veins arcuate and united within the thickened revolute margins; petiolules of the lateral leaflets ¼′—½′ long, much shorter than those of the terminal leaflet. Flowers diœcious, appearing late in February or early in March, in elongated panicles inclosed in the bud by chestnut-brown pubescent scales; staminate flower composed of an annular disk and 2 or 3 stamens, with short filaments and apiculate anthers; calyx of the pistillate flower cup-shaped, slightly lobed, as long as the ovary gradually narrowed into the slender style. Fruit oblong to lanceolate or oblanceolate, surrounded at base by the persistent calyx, 1′—2′ long, ¼′—½′ wide, marked on each of the 2 faces by a broad impressed midvein, the body near the base of the many-nerved wing narrowed, rounded, and emarginate at apex.

A tree, 30°—40° high, with a trunk sometimes 12′ in diameter, small spreading branches, and slender terete branchlets light orange-brown and occasionally marked by large pale lenticels during their first season, ashy gray and roughened the following year by the large horizontal obcordate elevated leaf-scars displaying a central ring of fibro-vascular bundle-scars. Winter-buds terminal, broad-ovoid, acute, rusty-pubescent, about ¼′ long. Bark of the trunk 1/16′—⅛′ thick, light gray, and broken on the surface into small thin closely appressed scales.

Distribution. Deep swamps; valleys of the St. Mary’s and Flint Rivers (Albany), southern Georgia; Florida, near Jacksonville, Duval County, valley of the Caloosahatchee River, and Bonita Springs, Lee County, to the shores of Lake Okeechobee, and in the valley of the lower Apalachicola River; most abundant in southern Florida.

7. Fraxinus Standleyi Rehd.

Leaves 5′—7′ long, with a slender glabrous petiole flattened, or slightly concave on the upper side, and 7—9 ovate to oblong-ovate rarely elliptic leaflets, acute or short-acuminate or rarely rounded at apex, broad-cuneate at base, slightly and irregularly serrate, yellow-green and glabrous above, glaucescent, slightly reticulate, minutely punctulate, glabrous or slightly villose on the slender midrib below, or rarely closely villose over the entire lower surface, 1½′—2½′ long and 1′—2′ wide, with usually 5—7 primary veins, the terminal leaflet raised on a petiolule up to ½′ long, the lateral short-petiolulate, or nearly sessile. Flowers not seen. Fruit ripening in September, on slender pedicels, in glabrous panicles 3′—5′ long, oblong-obovate, acute, rarely obtuse and occasionally emarginate at apex, surrounded at base by the minute calyx deeply divided into acuminate lobes, ¾′—1½′ long and ⅙′—¼′ wide, the wing decurrent nearly to the middle of the subterete or slightly compressed ellipsoid or oblong body.

A tree, sometimes 30° high, usually smaller, with a trunk only a few inches in diameter, and slender terete glabrous branches orange-brown or rarely on vigorous shoots dark red-brown and lustrous. Winter-buds: terminal ovoid, gradually narrowed and acute at apex, ⅓′ long.

Distribution. Mountain cañons at altitudes of 5500°—8000°; New Mexico (Lincoln, Grant and Luna Counties); Arizona (Cochise, Pima and Coconino Counties); on the San José Mountains, Sonora, at an altitude of 7200°; passing into var. _lasia_ Rehd. with branchlets, lower surface of the 7 leaflets and petioles densely tomentose; in Oak Creek and Sycamore cañons south of Flagstaff, Coconino County, at Fort Apache, Navajo County, on the White Mountains, Graham County, and on the Chiricahua Mountains, Cochise County, Arizona; and near Santa Rita, Grant County, New Mexico. A single plant, possibly a shrub, of the Mexican _Fraxinus papilosa_ Ling. differing chiefly from _F. Standleyi_ in the glaucous papillose under surface of the leaves, has been seen at an altitude of 6750° on the west sides of the San Luis Mountains, Grant County, New Mexico.

8. Fraxinus americana L. White Ash.

Leaves 8′—12′ long, with a stout grooved petiole, and 5—9, usually 7, ovate to oblanceolate or oval, often falcate abruptly pointed or acuminate leaflets, cuneate or rounded at base, crenulate-serrate or nearly entire, thin but firm, dark green above, pale or light green and glabrous or slightly pubescent below, or rarely thicker, lanceolate, long-acuminate, entire, glabrous and silvery white below (var. _crassifolia_ Sarg.), 3′—5′ long and 1½′—3′ wide, with a broad midrib, and numerous conspicuous veins arcuate near the margins; falling early in the autumn after turning on some individuals deep purple and on others clear bright yellow; petiolules ¼′—½′ or that of the terminal leaflet up to 1′ in length. Flowers diœcious, opening before the leaves late in the spring, in compact ultimately elongated glabrous panicles from buds covered with dark ovate scales rounded at apex and slightly keeled on the back; calyx campanulate, slightly 4-lobed in the staminate flower, and deeply lobed or laciniately cut in the pistillate flower; stamens 2 or occasionally 3, with short stout filaments, and large oblong-ovate apiculate anthers at first nearly black, later becoming reddish purple; ovary contracted into a long slender style divided into 2 spreading dark purple stigmatic lobes. Fruit rarely deeply tinged with purple (f. _iodocarpa_ Fern.), 1′—2½′ long and usually about ¼′ wide, or sometimes not more than ½′ long (var. _microcarpa_ A. Gray), in crowded clusters 6′—8′ in length, lanceolate or oblanceolate, surrounded at base by the persistent calyx, the wing pointed or emarginate at apex and terminal or slightly decurrent on the terete body.

A tree, sometimes 120° high, with a tall massive trunk 5°—6° in diameter, stout upright or spreading branches forming in the forest a narrow crown, or with sufficient space a round-topped or pyramidal head, and thick terete branchlets dark green or brown tinged with red and covered with scattered pale caducous hairs when they first appear, soon becoming light orange color or ashy gray and marked by pale lenticels, becoming in their first winter gray or light brown, lustrous, often covered with a glaucous bloom and roughened by the large pale semiorbicular leaf-scars displaying near the margins a line of conspicuous fibro-vascular bundle-scars. Winter-buds: terminal broad-ovoid, obtuse, with 4 pairs of scales, those of the outer pair ovate, acute, apiculate, conspicuously keeled on the back, nearly black, slightly puberulous, about one half the length of the scales of the second pair rather shorter than those of the third pair, lengthening with the young shoots, and at maturity oblong-ovate, narrowed and rounded at apex, keeled, ½′ long, and rusty-pubescent, the scales of the inner pair becoming ⅔′ long, ovate, pointed, keeled, sometimes slightly pinnatifid, green tinged with brown toward the apex, covered with pellucid dots and very lustrous. Bark of the trunk 1′—3′ thick, dark brown or gray tinged with red, and deeply divided by narrow fissures into broad flattened ridges separating on the surface into thin appressed scales. Wood heavy, hard, strong, close-grained, tough, and brown, with thick lighter colored sapwood; used in large quantities in the manufacture of agricultural implements, for the handles of tools, in carriage-building, for oars and furniture, and in the interior finish of buildings; the most valuable of the American species as a timber-tree.

Distribution. Common in rich rather moist soil on low hills, and in the neighborhood of streams; Nova Scotia, New Brunswick, southern Quebec and Ontario and the southern peninsula of Michigan, and westward and southward to eastern Minnesota, central Iowa, southeastern Nebraska, eastern Kansas, and northern Oklahoma to the valley of the Salt Fork of the Arkansas River in Woods County (near Alva, _G. W. Stevens_), and to Florida to Taylor County and the valley of the lower Apalachicola River, and through the Gulf states to the valley of the Trinity River, Texas; of its largest size on the bottom-lands of the basin of the lower Ohio River; southward and west of the Mississippi River less common and of smaller size; on the Appalachian Mountains up to altitudes of 3800°; the var. _crassifolia_ at Mt. Victory, Harding County, Ohio, Campbell, Dunklin County, Missouri, and near Texarkana, Bowie County, Texas.

Often planted in the eastern states as a shade and ornamental tree, and occasionally in western and northern Europe.

A form with the wing of the fruit extending nearly to the middle of the body distinguished as _Fraxinus Smallii_ Britt. has the appearance of a hybrid between _F. americana_ and _F. pennsylvanica_ var. _lanceolata_; individuals of this form have been found near McGuire’s Mill, on the Yellow River, Guinnett County, Georgia; near Rochester, Munroe County, New York; and near Lake Wingra, Dane County, Wisconsin.

9. Fraxinus texensis Sarg. Mountain Ash.

Leaves 5′—8′ long, with a long slender terete petiole, and 5 or occasionally 7 usually long-stalked ovate broad-oval or obovate leaflets, rounded or acute, or often abruptly pointed at apex, cuneate, rounded or slightly cordate at base, and coarsely crenulate-serrate, chiefly above the middle, light green slightly tinged with red and pilose with occasional pale caducous hairs when they unfold, and at maturity thick and firm, glabrous, dark green on the upper surface, pale on the lower surface, 1′—3′ long and ¾′—2′ wide, and occasionally furnished below with tufts of long white hairs at the base of the broad midrib, and in the axils of the numerous conspicuous veins forked near the margins and connected by coarse reticulate veinlets; petiolules slender, ¼′—½′ and on the terminal leaflet up to 1′ in length. Flowers diœcious, appearing in March as the leaves begin to unfold, in compact glabrous panicles from the axils of leaves of the previous year, and covered in the bud by ovate rounded orange-colored scales; staminate flower composed of a minute or nearly obsolete 4-lobed calyx and 2 stamens, with short filaments and linear-oblong light purple apiculate anthers; calyx of the female flower deep cup-shaped, and divided to the base into 4 acute lobes; ovary gradually narrowed into a long slender style. Fruit in short compact clusters, spatulate to oblong, surrounded at base by the persistent calyx, ½′—1′ long and ⅛′—¼′ wide, the wing rounded or occasionally emarginate at apex, and terminal on the short terete many-rayed body; very rarely with 3 or 4 wings extending to the base of the fruit.

A tree, rarely 50° high, with a short trunk occasionally 2°—3° in diameter, thick spreading often contorted branches, and stout terete branchlets dark green tinged with red and slightly puberulous when they first appear, becoming light yellow-brown or light orange color during the summer, and in their first winter light brown marked by remote oblong pale lenticels and by large elevated lunate leaf-scars displaying a row of conspicuous fibro-vascular bundle-scars, and dark or reddish brown in their second or third season; usually much smaller. Winter-buds: terminal acute, with 3 pairs of scales, those of the first pair broad-ovate, rounded at the apex, dark orange color, pilose toward the base, and rather shorter than the ovate rounded scales of the second pair coated with rufous tomentum and becoming ½′ long or about one half the length of the linear strap-shaped scales of the inner pair truncate or emarginate at the apex and orange color. Bark of the trunk ½′—¾′ thick, dark gray and deeply divided by narrow fissures into broad scaly ridges. Wood heavy, hard, strong, light brown, with thin lighter colored sapwood; valued as fuel and occasionally used for flooring.

Distribution. Texas, high dry limestone bluffs and ridges, in the neighborhood of Dallas, Dallas County, and Fort Worth, Tarrant County, to the valley of the Colorado River near Austin, Travis County, and over the Edwards Plateau to Bandera, Kerr, Edwards and Palo Pinto Counties.

Hardy in the Arnold Arboretum.

10. Fraxinus biltmoreana Beadl.

Leaves 10′—12′ long, with a stout pubescent or puberulous petiole, and 7—9 oblong-ovate to ovate-lanceolate or oval often falcate entire or obscurely toothed leaflets acuminate at apex, rounded or cuneate and often inequilateral at base, yellow-bronze color and nearly glabrous above, coated beneath, particularly on the midrib and veins, with long white hairs when they unfold, and at maturity 3′—6′ long, 1½′—2′ wide, thick and firm in texture, dark green and slightly lustrous on the upper surface, pale, or glaucous and puberulous on the lower surface and villose along the slender yellow midrib, and primary veins arcuate near the slightly thickened and incurved margins; petiolules pubescent, ¼′—½′ or that of the terminal leaflet up to 2′ in length. Flowers diœcious, appearing with the leaves about the 1st of May, in a rather compact pubescent panicle, with scarious caducous bracts and bractlets; staminate flower with a minute cup-shaped very obscurely dentate calyx and nearly sessile oblong acute anthers; calyx of the pistillate flower much larger and deeply lobed; ovary oblong, gradually narrowed into the slender style divided at apex into 2 short stigmatic lobes. Fruit linear-oblong, in elongated glabrous or puberulous clusters, 1½′—1¾′ long and about ¼′ wide, the wing terminal, only slightly narrowed at the ends, emarginate at apex, and two and a half to three times longer than the short ellipsoid terete many-nerved body.

A tree, 40°—50° high, with a trunk 12′—18′ in diameter, stout ascending or spreading branches forming an open symmetrical head, and stout light or dark gray branchlets soft-pubescent usually during two seasons, much roughened during their first winter and often for two or three years by the large elevated mostly obcordate or sometimes orbicular leaf-scars displaying a marginal line of fibro-vascular bundle-scars. Winter-buds: terminal ovoid, usually broader than long, and covered with bright brown scales, those of the outer pair keeled on the back and apiculate at apex, the others rounded, accrescent, and slightly villose. Bark of the trunk rough, dark gray, and slightly furrowed.

Distribution. Banks of streams and on low river benches; western New Jersey (Bordentown, Burlington County); eastern Pennsylvania (Bucks County); near Arlington, Alexandria County, Great Falls, Fairfax County, Woodbridge, Prince William County, and Clifton Forge, Alleghany County, Virginia; near Easton, Monongalia County, West Virginia, and along the Appalachian Mountains up to altitudes of 2200° to northern Georgia; in northern Alabama (St. Bernard, Cullman County), and westward to eastern Kentucky, central Tennessee and through Ohio northward to Erie County; southern Indiana and Illinois (Richland County), to southeastern Missouri (Campbell, Dunklin County).

11. Fraxinus profunda Bush. Pumpkin Ash.

Leaves 9′—18′ long, with a stout tomentose petiole, and usually 7 but occasionally 9 lanceolate or elliptic entire or slightly serrate leaflets acuminate or abruptly long-pointed at apex, rounded, cuneate and often unsymmetric at base, coated below when they unfold with hoary tomentum, and pilose on the upper surface with short pale hairs, particularly on the midrib and veins, and at maturity thick and firm in texture, dark yellow-green and nearly glabrous on the upper surface, soft-pubescent on the lower surface, 5′—10′ long and 1½′—5′ wide, with a stout yellow midrib deeply impressed and puberulous above and numerous slender primary veins; petiolules stout, tomentose early in the season, usually becoming glabrous or nearly glabrous, ¼′—½′ or that of the terminal leaflet up to 2′ in length. Flowers diœcious, in elongated much-branched pubescent panicles, with oblong or oblong-obovate scarious bracts and bractlets; staminate flower with a minute campanulate obscurely 4-toothed calyx, and 2 or 3 stamens, with comparatively long slender filaments and oblong apiculate anthers; pistillate flower with a large deeply lobed calyx accrescent and persistent under the fruit, and an ovary gradually contracted into a slender style. Fruit in long drooping many-fruited pubescent clusters, oblong, 2′—3′ in length and often ½′ wide, the wing sometimes falcate, rounded, apiculate, or emarginate at apex, and decurrent to below the middle or nearly to the base of the thick terete many-rayed body.

A tree, occasionally 120° high, with a slender trunk 3° in diameter above the much enlarged and buttressed base, small spreading branches forming a narrow rather open head, and stout branchlets marked by large pale lenticels, coated at first with hoary tomentum, tomentose and pubescent during their first winter and light gray and pilose or glabrous the following year, and marked by the oblong slightly raised obconic leaf-scars nearly surrounding the lateral buds; usually much smaller. Winter-buds terminal, broad-ovate, obtuse, light reddish brown, and covered with close pale pubescence. Bark of the trunk ½′—¾′ thick, light gray and divided by shallow fissures into broad flat or rounded ridges broken on the surface into thin closely appressed scales.

Distribution. Deep river swamps often inundated during several months of the year; western New York (_H. F. Sartwell_); southern Indiana and Illinois; western Kentucky (Caldwell and McCracken Counties) and Tennessee (Henderson County); southeastern Missouri, eastern Arkansas (Moark and Corning, Clay County, and Varner, Lincoln County); near New Orleans, Louisiana, eastern Mississippi (near Columbus, Lowndes County), and in the valley of the lower Apalachicola River, western Florida.

Occasionally cultivated; hardy in the Arnold Arboretum.

12. Fraxinus pennsylvanica Marsh. Red Ash.

Leaves 10′—12′ long, with a stout slightly grooved pubescent petiole, and 7—9 oblong-lanceolate, ovate-elliptic or slightly obovate leaflets gradually narrowed at apex into a long slender point, unequally cuneate at base, and obscurely serrate, or often entire below the middle, when they unfold coated below and on the petiole with hoary tomentum, and lustrous and puberulous on the upper surface, and at maturity thin and firm, 4′—6′ long, 1′—1½′ wide, light yellow-green above and pale and covered below with silky pubescence, with a conspicuous midrib and branching veins; in the autumn turning yellow or rusty brown before falling; petiolules thick, grooved, pubescent, ⅛′—¼′ or that of the terminal leaflet up to 1′ in length. Flowers diœcious, appearing late in spring as the leaves begin to unfold, in a rather compact tomentose panicle, covered in the bud with ovate rusty-tomentose scales; staminate flower with a minute obscurely toothed cup-shaped calyx, and 2 stamens, with short slender filaments and linear-oblong light green anthers tinged with purple; calyx of the pistillate flower cup-shaped, deeply divided, as long as the ovary gradually narrowed into an elongated style divided at apex into 2 green stigmatic lobes. Fruit in an open glabrous or pubescent panicle, lanceolate to slightly oblanceolate or oblong-obovate or elliptic, 1′—2½′ long, ¼′—⅓′ wide, surrounded at base by the persistent calyx, the thin wing narrowed, rounded and occasionally emarginate or acute or acuminate and often apiculate at apex, decurrent to below the middle or nearly to the gradually tapering base of the slender terete many-rayed body.

A tree, 40°—60° high, with a trunk rarely exceeding 18′—20′ in diameter, stout upright branches forming a compact irregularly shaped head, and slender terete branchlets more or less coated when they first appear with pale tomentum sometimes persistent until their second or third year or often disappearing during the first summer, ultimately becoming ashy gray or light brown tinged with red, frequently covered with a glaucous bloom and marked by pale lenticels, and in their first winter by the semicircular leaf-scars displaying a short row of large fibro-vascular bundle-scars. Winter-buds: terminal, about ⅛′ long, with 3 pairs of scales coated with rufous tomentum, those of the outer pair acute, rounded on the back, truncate at apex, and rather shorter than those of the other pairs 1′—1½′ long at maturity and sometimes pinnately cut toward the apex. Bark of the trunk ½′—⅔′ thick, brown tinged with red, and slightly furrowed, the surface of the ridges separating into thin appressed scales. Wood heavy, hard, rather strong, brittle, coarse-grained, light brown, with thick lighter brown sapwood streaked with yellow; sometimes confounded commercially with the more valuable wood of the White Ash. Variable in the length of the petiolules and in the shape of the fruit and the width of its wing; a form with short-stalked or nearly sessile leaflets, found chiefly in Nebraska has been described as _F. campestris_ Britt. and a form with the wing of the spatulate fruit sometimes ¼′ wide as _F. Michauxii_ Britt.

Distribution. Low rich moist soil near the banks of streams and lakes; Nova Scotia to Manitoba, and southward to central Georgia, northern Alabama (St. Bernard, Cullman County, and Attalla, Etowah County), northeastern Mississippi (Tishomingo County), southern Indiana and Illinois, northern Missouri, eastern Kansas and southwestern Oklahoma (Cache, Comanche County); usually confined in the Carolinas to the Piedmont region and foothills of the high mountains. Passing into

Fraxinus pennsylvanica var. lanceolata Sarg. Green Ash.

Leaves with rather narrower and shorter and usually more sharply serrate leaflets lustrous and bright green on both surfaces, and glabrous or pubescent along the midrib below.

A round-topped tree, rarely more than 60° high, or with a trunk more than 2° in diameter, slender spreading branches, ashy gray terete glabrous branchlets marked by pale lenticels, and rusty-pubescent bud-scales.

Distribution. Banks of streams; valley of the Penobscot River (Orono, Penobscot County), Maine, to northern Vermont and the valley of the St. Lawrence River, near Montreal, Province of Quebec, and to the valley of the Saskatchewan (Saskatoon, Saskatchewan), and in the United States westward to North Dakota, eastern Wyoming to the base of the Bighorn Mountains, and on the mountains of northern Montana, and southward to western Florida to the valley of the lower Apalachicola River, Dallas County, Alabama, central Mississippi, Louisiana, Oklahoma to Comanche County, and Texas to the valley of the Guadalupe River; most abundant in the basin of the Mississippi River; attaining its largest size on the rich bottom-lands of eastern Texas and here often 60°—70° high, with a trunk 2°—3° in diameter; on the southern Appalachian Mountains ascending to altitudes of 2000°—2500°. As it usually grows in the east with its bright green glabrous leaves and glabrous branchlets the Green Ash appears distinct from the Red Ash, but trees occur over the area which it inhabits, but more often westward, with slightly pubescent leaves and branchlets which may be referred as well to one tree as to the other and make it impossible to distinguish satisfactorily as species the Green and Red Ash.

Often planted as a shade and ornamental tree in the middle western and occasionally in the eastern states, but less valuable than the White Ash.

13. Fraxinus Berlandieriana DC.

Leaves 3′—7′ long, with a slender petiole, and 3—5 lanceolate, elliptic or obovate leaflets, acuminate or abruptly acuminate or acute at apex, cuneate or rarely rounded at base, mostly entire or remotely serrate, thin, dark green and glabrous on the upper surface, rather paler and glabrous or furnished with small axillary tufts of white hairs on the lower surface, 3′—4′ long and ½′—1½′ wide; petiolules slender, 1¼′—1⅓′ or that of the terminal leaflet up to 1½′ in length. Flowers diœcious, in a short glabrous panicle inclosed in the bud by broad-ovate rounded chestnut-brown pubescent scales; staminate flower with a minute obscurely lobed calyx and 2 stamens, with short filaments and linear-oblong apiculate anthers; calyx of the pistillate flower cup-shaped, deeply divided, and as long as the ovary gradually narrowed into the slender style. Fruit ripening in May, oblong-obovate to spatulate, acute or acuminate at apex, 1′—1½′ long and ¼′ wide, the wing decurrent nearly to the base of the compressed many-rayed clavate body gradually narrowed into a long slender base surrounded by the enlarged deeply lobed calyx.