2. Alnus. Stamens 4. Fertile scales thick, entire, persisting after the

nuts have fallen.

Tribe II. CORYLEAE. Sterile catkins pendulous, with no calyx; stamens 3

or more to each bract and more or less adnate to it, the filaments often

forked (anthers 1-celled). Fertile flowers in a short ament or head, 2

to each bract, and each with one or more bractlets which form a

foliaceous involucre to the nut. Ovary 2-celled, 2-ovuled.

[*] Bract of staminate flower furnished with a pair of bractlets inside;

fertile flowers few.

3. Corylus. Involucre leafy-coriaceous, enclosing the large bony nut.

[*][*] Bract of staminate flower simple; fertile flowers in short

catkins; nut small, achene-like.

4. Ostrya. Each ovary and nut included in a bladdery and closed bag.

5. Carpinus. Each nut subtended by an enlarged leafy bractlet.

Tribe III. QUERCINEAE. Sterile flowers with 4--7-lobed calyx and stamens

indefinite (3--20). Fertile flowers 1 or few, enclosed in a cupule

consisting of consolidated bracts, which becomes indurated (scaly or

prickly) and surrounds or encloses the nut.

[*] Sterile flowers in slender catkins.

6. Quercus. Cupule 1-flowered, scaly and entire; nut hard and terete.

7. Castanea. Cupule 2--4-flowered, forming a prickly hard bur,

2--4-valved when ripe.

[*][*] Sterile flowers in a small head.

8. Fagus. Cupule 2-flowered, 4-valved, containing 2 sharply triangular

nuts.

1. BETULA, Tourn. BIRCH.

Sterile flowers 3, and bractlets 2, to each shield-shaped scale or bract

of the catkins, consisting each of a calyx of one scale bearing 4 short

filaments with 1-celled anthers (or strictly of two 2-parted filaments,

each division bearing an anther-cell). Fertile flowers 2 or 3 to each

3-lobed bract, without bractlets or calyx, each of a naked ovary,

becoming a broadly winged and scale-like nutlet (or small samara)

crowned with the two spreading stigmas.--Outer bark usually separable in

sheets, that of the branchlets dotted. Twigs and leaves often

spicy-aromatic. Foliage mostly thin and light. Buds sessile, scaly.

Sterile catkins long and drooping, terminal and lateral, sessile, formed

in summer, remaining naked through the succeeding winter, and expanding

their golden flowers in early spring, with or preceding the leaves;

fertile catkins oblong or cylindrical, peduncled, usually terminating

very short 2-leaved early lateral branches of the season. (The ancient

Latin name, of Celtic origin.)

[*] _Trees, with brown or yellow-gray bark, sweet-aromatic as well as

the twigs, membranaceous and straight-veined Hornbeam-like leaves

heart-shaped or rounded at base, on short petioles, and sessile very

thick fruiting catkins; their scales about equally 3-cleft, rather

persistent; wing of fruit not broader than the seed-bearing body._

1. B. lenta, L. (CHERRY B. SWEET or BLACK BIRCH.) _Bark_ of trunk _dark

brown, close_ (outer layers scarcely laminate), very sweet-aromatic;

leaves ovate or oblong-ovate from a more or less heart-shaped base,

acuminate, sharply and finely doubly serrate all round, when mature

shining or bright green above and glabrous except on the veins beneath;

_fruiting catkins oblong-cylindrical_ (1--11/4' long), the scales with

short and _divergent lobes_.--Rich woodlands, Newf. to N. Del., and

south in the mountains, west to Minn., and S. Ind. Tree 50--75 deg. high,

with reddish bronze-colored spray; wood rose-colored, fine-grained,

valuable for cabinet-work.

2. B. lutea, Michx. f. (YELLOW or GRAY BIRCH.) _Bark_ of trunk

_yellowish- or silvery-gray, detaching in very thin filmy layers_,

within and the twigs much less aromatic; leaves (3--5' long) slightly or

not at all heart-shaped and often narrowish toward the base,

duller-green above and usually more downy on the veins beneath; fruiting

catkins _oblong-ovoid_ (1' or less in length, 6--9'' thick), the thinner

scales (5--6'' long) twice as large as in n. 1, and with narrower

_barely spreading lobes_.--Rich moist woodlands, Canada and N. Eng. to

Del., west to Minn.; also along high peaks to Tenn. and N. C. Often

60--90 deg. high at the north; wood whiter and less valuable.

[*][*] _Trees, with chalky-white bark separable in thin sheets, ovate or

triangular leaves of firmer texture, on long slender petioles; fruiting

catkins cylindrical, usually hanging on rather slender peduncles; their

scales glabrous, with short diverging lobes, freely deciduous; wing of

the fruit much broader than its body._

3. B. populifolia, Ait. (AMERICAN WHITE BIRCH. GRAY BIRCH.) Trunk

usually ascending (15--30 deg. high); _leaves triangular_ (deltoid), _very

taper-pointed_ (usually abruptly), truncate or nearly so at the broad

base, _smooth and shining both sides_, except the resinous glands when

young. (B. alba, var. populifolia, _Spach_.)--Poor sandy soils, N.

Brunswick to Del., west to L. Ontario. Bark much less separable than

the next; leaves on slender petioles, tremulous as those of the aspen.

4. B. papyrifera, Marshall. (PAPER or CANOE BIRCH. WHITE BIRCH.) _Leaves

ovate, taper-pointed_, heart-shaped or abrupt (or rarely wedge-shaped)

at base, _smooth and green above_, pale, glandular-dotted, and a little

hairy on the veins beneath, sharply and unequally doubly serrate, 3--4

times the length of the petiole. (B. papyracea, _Ait._)--Rich woodlands

and stream-banks, N. Eng. to N. Penn., N. Ill., and Minn., and far north

and westward. Tree 50--75 deg. high, with bark freely splitting into

paper-like layers.--Var. MINOR, Tuckerman, is a dwarf form of the

alpine region of the White Mts.

[*][*][*] _Tree, with greenish-brown bark, somewhat laminate, and

reddish twigs, ovate leaves whitish beneath, and soft-downy peduncled

fruiting catkins._

5. B. nigra, L. (RIVER or RED BIRCH.) Leaves rhombic-ovate, acutish at

both ends, irregularly doubly serrate, whitish and (until old) downy

underneath; petioles and peduncle of nearly the same length (3--7'') and

with the oblong catkin tomentose; the bracts with oblong linear nearly

equal lobes; fruit broadly winged.--Banks of streams, Mass, to Fla.,

west to Minn., E. Kan., and Tex. Tree 50--75 deg. high, with light-colored

wood and somewhat Alder-like leaves.

[*][*][*][*] _Shrubs, with brownish bark, rounded or wedge-shaped

crenate and mostly small leaves of thickish or coriaceous texture, and

oblong or cylindrical glabrous and mostly erect catkins, on short

peduncles._

6. B. pumila, L. (LOW BIRCH.) Stems (2--8 deg. high) erect or ascending,

_not glandular_; young branches and lower face of young leaves mostly

_soft-downy; leaves_ obovate, roundish, or orbicular (6--16'' long),

_pale beneath, veinlets on both faces finely reticulated_; wing of the

fruit mostly narrower than the body.--Bogs, W. Conn, and N. J. to Ind.

and Minn., and northward throughout Canada. Leaves usually not at all

resiniferous or glandular-dotted.

7. B. glandulosa, Michx. (DWARF BIRCH.) Stems erect or mostly spreading

(1--4 deg. high), or when alpine procumbent; _branchlets glabrous,

conspicuously dotted with resinous wart-like glands_; leaves roundish

wedge-obovate or sometimes orbicular (6--9'' long), green and glabrous

both sides, less reticulated; fruiting catkins mostly shorter and oblong

or oval; wing of the fruit narrower than or sometimes equalling the

body.--High mountains of N. Eng. and N. Y., to L. Superior, and far

northward.

2. ALNUS, Tourn. ALDER.

Sterile catkins elongated and drooping, with 4 or 5 bractlets and 3

(rarely 6) flowers upon each short-stalked shield-shaped scale; each

flower usually with a 3--5-parted calyx and as many stamens; filaments

short and simple; anthers 2-celled. Fertile catkins ovoid or oblong; the

fleshy scales each 2--3-flowered, with a calyx of 4 little scales

adherent to the scales or bracts of the catkin, which are thick and

woody in fruit, wedge-obovate, truncate, or 3--5-lobed, and

persistent.--Shrubs or small trees, with few-scaled leaf-buds, and

solitary or often racemose-clustered catkins, terminating leafless

branchlets or peduncles. (The ancient Latin name.)

Sec. 1. _Flowers developed in spring with the leaves; the sterile from

catkins which have remained naked over winter; while the fertile have

been enclosed in a scaly bud; fruit with a conspicuous thin wing, as in_

Birch.

1. A. viridis, DC. (GREEN or MOUNTAIN ALDER.) Shrub 3--8 deg. high; leaves

round-oval, ovate, or slightly heart-shaped, glutinous and smooth or

softly downy beneath, irregularly serrulate or biserrulate with very

sharp and closely set teeth, sometimes sinuate-toothed and serrulate

(var. SINUATA, Regel), on young shoots often cut-toothed; fertile

catkins slender-stalked, clustered, ovoid (6--8'' long).--On mountains

and mountain streams, Newf. to W. Mass., N. Y., L. Superior, and far

north and west; also in the Alleghanies to N. C. (Eu., Asia.)

Sec. 2. _Flowers developed in earliest spring, before the leaves, from

mostly clustered catkins which (of both sorts) were formed the foregoing

summer and have remained naked over winter; fruit wingless or with a

narrow coriaceous margin._

2. A. incana, Willd. (SPECKLED or HOARY A.) _Leaves broadly oval or

ovate, rounded at base_, sharply and often doubly serrate, _whitened and

mostly downy beneath_; stipules oblong-lanceolate; fruit

orbicular.--Borders of streams and swamps, Newf. to Mass., E. Neb.,

Minn., and westward. Shrub or tree 8--20 deg. high; the common Alder

northward. (Eu., Asia.)

3. A. serrulata, Willd. (SMOOTH A.) _Leaves obovate, acute at base_,

sharply serrate with minute teeth, thickish, _green both sides_, smooth

or often downy beneath; stipules oval; fruit ovate.--Borders of streams

and swamps, Mass. to Fla., west to S. E. Minn. and Tex.; common. Shrub

forming dense thickets, or sometimes at the south a small tree 6--35 deg.

high.

Sec. 3. _Flowers in autumn (Sept.) from catkins of the season; the fertile

mostly solitary in the axils of the leaves, ripening the fruit a year

later; fruit wingless._

4. A. maritima, Muhl. (SEA-SIDE A.) Glabrous; leaves oblong, ovate, or

obovate with a wedge-shaped base, slender-petioled, sharply serrulate,

bright green, or rather rusty beneath; fruiting catkins large, ovoid or

oblong (9--12'' long, 6'' thick).--Borders of streams and swamps. S.

Del. and E. Md., near the coast. Small tree 15--25 deg. high. (E. Asia.)

3. CORYLUS, Tourn. HAZEL-NUT. FILBERT.

Sterile flowers in drooping cylindrical catkins, consisting of 8 (half-)

stamens with 1-celled anthers, their short filaments and pair of scaly

bractlets cohering more or less with the inner face of the scale of the

catkin. Fertile flowers several in a scaly bud, each a single ovary in

the axil of a scale or bract, and accompanied by a pair of lateral

bractlets; ovary tipped with a short limb of the adherent calyx,

incompletely 2-celled, with 2 pendulous ovules, one of them sterile;

style short; stigmas 2, elongated and slender. Nut ovoid or oblong,

bony, enclosed in a leafy or partly coriaceous cup or involucre,

consisting of the two bractlets enlarged and often grown together,

lacerated at the border. Cotyledons very thick (raised to the surface

in germination), edible; the short radicle included.--Shrubs or small

trees, with thinnish doubly-toothed leaves, folded lengthwise in the

bud, flowering in early spring; sterile catkins single or fascicled from

scaly buds of the axils of the preceding year, the fertile terminating

early leafy shoots. (The classical name, probably from [Greek: ko/rys],

_a helmet_, from the involucre.)

1. C. Americana, Walt. (WILD HAZEL-NUT.) _Leaves roundish-heart-shaped_,

pointed; _involucre open above_ down to the globose nut, _of 2 broad

foliaceous cut-toothed almost distinct bracts_, their base coriaceous

and downy, or with glandular bristles intermixed.--Thickets,

N. Eng. to Ont. and Dak., and southward. Twigs and petioles often

glandular-bristly.

2. C. rostrata, Ait. (BEAKED HAZEL-NUT.) _Leaves ovate or ovate-oblong,

somewhat heart-shaped_, pointed; _involucre of united bracts, much

prolonged_ above the ovoid nut _into a narrow tubular beak, densely

bristly_.--N. Scotia to northern N. J., Mich., Minn., and westward, and

south in the mountains to Ga. Shrub 2--6 deg. high.

4. OSTRYA, Micheli. HOP-HORNBEAM. IRON-WOOD.

Sterile flowers in drooping cylindrical catkins, consisting of several

stamens in the axil of each bract; filaments short, often forked,

bearing 1-celled (half-) anthers; their tips hairy. Fertile flowers in

short catkins; a pair to each deciduous bract, each of an incompletely

2-celled 2-ovuled ovary, crowned with the short bearded border of the

adherent calyx, tipped with 2 long-linear stigmas, and enclosed in a

tubular bractlet, which in fruit becomes a closed bladdery oblong bag,

very much larger than the small and smooth nut; these inflated

involucres loosely imbricated to form a sort of strobile, in appearance

like that of the Hop.--Slender trees, with very hard wood, brownish

furrowed bark, and foliage resembling that of Birch; leaves open and

concave in the bud, more or less plaited on the straight veins. Flowers

in the spring, appearing with the leaves; the sterile catkins 1--3

together from scaly buds at the tip of the branches of the preceding

year; the fertile single, terminating short leafy shoots of the season.

(The classical name.)

1. O. Virginica, Willd. (AMERICAN HOP-HORNBEAM. LEVER-WOOD.) Leaves

oblong-ovate, taper-pointed, very sharply doubly serrate, downy beneath,

with 11--15 principal veins; buds acute; involucral sacs bristly-hairy

at the base.--Rich woods, common, from the Atlantic to N. Minn., Neb.,

E. Kan., and southward. Tree 25--45 deg. high; hop-like strobiles

full-grown in Aug.

5 CARPINUS, L. HORNBEAM. IRON-WOOD.

Sterile flowers in drooping cylindrical catkins, consisting of several

stamens in the axil of a simple and entire scale-like bract; filaments

very short, mostly 2-forked, the forks bearing 1-celled (half-) anthers

with hairy tips. Fertile flowers several, spiked in a sort of loose

terminal catkin, with small deciduous bracts, each subtending a pair of

flowers, as in Ostrya; but the single involucre-like bractlet is open,

enlarged in fruit and foliaceous, merely subtending the small ovate

several-nerved nut.--Trees or tall shrubs, with smooth close gray bark,

in this and in the slender buds and straight-veined leaves resembling

the Beech; leaf-buds and inflorescence as in Ostrya. (The early Latin

name.)

1. C. Caroliniana, Walter. (AMERICAN HORNBEAM. BLUE or WATER BEECH.)

Leaves ovate-oblong, pointed, sharply doubly serrate, soon nearly

smooth; bractlets 3-lobed, halberd-shaped, sparingly cut-toothed on one

side, acute. (C. Americana, _Michx._)--Along streams, N. Scotia to Fla.,

west to Minn., Iowa, E. Kan., and Tex. Tree or shrub, 10--45 deg. high, with

ridged trunk, and very hard wood.

6. QUERCUS, L. OAK.

Sterile flowers in slender naked catkins; bracts caducous; calyx

2--8-parted or lobed; stamens 3--12; anthers 2-celled. Fertile flowers

scattered or somewhat clustered, consisting of a nearly 3-celled and

6-ovuled ovary, with a 3-lobed stigma, enclosed by a scaly bud-like

involucre which becomes an indurated cup (_cupule_) around the base of

the rounded nut or acorn. Cotyledons remaining underground in

germination; radicle very short, included.--Flowers greenish or

yellowish. Sterile catkins single or often several from the same lateral

scaly bud, filiform and hanging in all our species. (The classical Latin

name.) All flower in spring, and shed their nuts in Oct. of the same or

the next year.

Sec. 1. LEUCOBALANUS. _Bark pale, often scaly; leaves and their lobes or

teeth obtuse, never bristle-pointed; stamens 6--8; scales of the cup

more or less knobby at base; stigmas sessile or nearly so; abortive

ovules at the base of the perfect seed; inner surface of nut glabrous;

fruit maturing the first year, often peduncled; kernel commonly

sweetish; wood tough and dense._

[*] _Leaves deciduous, lyrate or sinuate-pinnatifid, pale

beneath._--WHITE OAKS.

1. Q. alba, L. (WHITE OAK.) Mature _leaves smooth, pale or glaucous

underneath, bright green above_, obovate-oblong, obliquely cut

into 3--9 oblong or linear and obtuse mostly entire lobes; _cup

hemispherical-saucer-shaped, rough or tubercled at maturity, naked, much

shorter than the ovoid or oblong acorn_ (1' long).--All soils, Maine to

S. E. Minn., E. Kan., and south to the Gulf. A large and valuable tree;

lobes of the leaves short and broad (3--5), or deep and narrow (5--9).

2. Q. stellata, Wang. (POST OAK. IRON OAK.) _Leaves grayish or

yellowish-downy underneath, pale and rough above, thickish_, sinuately

cut into 5--7 rounded divergent lobes, the upper ones much larger and

often 1--3-notched; _cup deep saucer-shaped, naked, one third or half

the length of the ovoid acorn_ (6--9'' long). (Q. obtusiloba,

_Michx._)--Sandy or sterile soil, Martha's Vineyard to Mich. and E.

Neb., south to Fla. and Tex.; common, especially southward. A small tree

with very durable wood.

3. Q. macrocarpa, Michx. (BUR OAK. OVER-CUP or MOSSY-CUP OAK.) _Leaves_

obovate or oblong, _lyrately-pinnatifid or deeply sinuate-lobed, or

nearly parted_, sometimes nearly entire, irregular, downy or pale

beneath; the lobes sparingly and obtusely toothed, or the smaller ones

entire; _cup deep_, thick and woody (9''--2' across), conspicuously

imbricated with hard and thick _pointed scales, the upper ones awned_,

so as usually to make a mossy-fringed border; _acorn_ broadly ovoid

(1--11/2' long), _half immersed in or entirely enclosed by the cup_.--Rich

soil, N. Scotia to W. Mass. and Penn., west to Minn., central Neb., and

Kan. A large and valuable tree; extremely variable in the size and

fringe of the acorns.--Var. OLIVAEFORMIS, Gray, is only a narrower-leaved

form with unusually small oblong acorns.

4. Q. lyrata, Walt. (OVER-CUP OAK. SWAMP POST OAK.) Leaves crowded at

the end of the branchlets, obovate-oblong, acute at base, more or less

deeply _7--9-lobed, white-tomentose beneath_ or at length smoothish,

_the lobes triangular to oblong, acute or obtuse, entire_ or sparingly

toothed; fruit short-peduncled or sessile; cup round-ovate, thin, _with

rugged scales, almost covering the depressed-globose acorn_

(8--10''long).--River swamps, S. E. Mo. to S. Ind., Tenn., N. C., and

southward.--A large tree, with flaky bark; intermediate between n. 3 and

n. 5.

[*][*] _Leaves coarsely sinuate-toothed, but not lobed_ (except slightly

in n. 5), _whitish and more or less downy beneath; cup hoary,

hemispherical or a little depressed, about half as long as the

oblong-ovoid edible acorn_.--CHESTNUT-OAKS.

5. Q. bicolor, Willd. (SWAMP WHITE OAK.) _Leaves_ obovate or

oblong-obovate, _wedge-shaped at base, coarsely sinuate-crenate_ and

often rather _pinnatifid_ than toothed, usually _soft-downy and

white-hoary_ beneath, the main primary veins 6--8 pairs, lax and little

prominent; fruiting _peduncle much longer than the petiole_; upper

scales of the cup awn-pointed, sometimes forming a mossy-fringed margin;

acorn scarcely 1' long.--Borders of streams and swamps, S. Maine to

Ont., Minn., and E. Kan., and south in the mountains to N. Ga.--A large

tree, with flaky bark.

6. Q. Michauxii, Nutt. (BASKET-OAK. COW-OAK.) Leaves (5--6' long) oval

or obovate, acute, _obtuse or even cordate at base_, regularly _dentate_

(commonly not deeply), _rather rigid, usually very tomentose beneath;

stamens usually 10_; fruit short-peduncled; cup shallow, tuberculate

with hard and stout acute scales, without fringe; acorn 11/2' long. (Q.

Prinus, var Michauxii, _Chapm._)--Borders of streams and swamps, Del. to

Fla., and in the west from S. Ind. to Mo., and south to the Gulf.--A

large and valuable tree, with gray flaky bark and large sweet edible

acorns. Intermediate forms appear to connect with n. 5, of which Dr.

Engelmann considered it a sub-species.

7. Q. Prinus, L. (CHESTNUT-OAK.) _Leaves_ thick, varying, obovate or

oblong to lanceolate, sometimes acuminate, _with an obtuse or acute

base, undulately crenate-toothed, pale and minutely downy beneath_, the

main primary ribs 10--16 pairs, straight, prominent beneath; fruiting

_peduncles shorter than the petioles, often very short_; cup thick

(6--12'' wide), mostly tuberculate with hard and stout scales; acorn

large (sometimes 1--11/4' long). (Incl. var. monticola, _Michx._)--Rocky

banks and hillsides, E. Mass. to N. Y. and Ont., and south in the

mountains to N. Ala. A large tree, with thick and deeply furrowed bark,

rich in tannin.

8. Q. Muhlenbergii, Engelm. (YELLOW OAK. CHESTNUT-OAK.) _Leaves_ (5--7'

long) _slender-petioled, often oblong or even lanceolate, usually acute

or pointed, mostly obtuse or roundish at base, almost equably and rather

sharply toothed_; cup subsessile, shallow, thin, of small appressed

scales, 5--7'' broad; acorn globose or obovate, 7--9'' long. (Q. Prinus,

var. acuminata, _Michx._)--Dry hillsides and rich bottoms, Mass. to

Del., along the mountains to N. Ala., west to Minn., E. Neb., and

Tex.--Leaves more like those of the Chestnut than any other; the primary

veins very straight, impressed above, prominent beneath. A tall tree,

with thin flaky bark.

9. Q. prinoides, Willd. Like the last, but of _low stature_ (usually

2--4 deg. high), _with smaller more undulate leaves on shorter petioles_

(3--6'' long), and deeper cups with _more tumid scales_. (Q. Prinus,

var. humilis, _Marsh._)--Same range as last. Apparently quite distinct

at the east, where it is very low, but running into Q. Muhlenbergii at

the far west.

[*][*][*] _Leaves coriaceous, evergreen, entire or rarely

spiny-toothed._--LIVE OAKS.

10. Q. virens, Ait. (LIVE OAK.) Leaves small, oblong or elliptical,

hoary beneath as well as the branchlets; peduncle usually conspicuous,

1--3-fruited; cup top-shaped; acorn oblong; cotyledons completely united

into one mass.--Along the coast from Va. to Fla. and Tex. Becoming a

large tree at the south, and formerly extensively used in ship-building.

Sec. 2. MELANOBALANUS. _Bark dark, furrowed; leaves deciduous, their lobes

and teeth acute and bristle-pointed (at least in youth); stamens mostly

4--6; cup-scales membranaceous; styles long and spreading; abortive

ovules near the top of the perfect seed; inner surface of nut tomentose;

fruit maturing the second year, sessile or on short thick peduncles;

wood porous and brittle._--BLACK OAKS.

[*] _Leaves pinnatifid or lobed, slender-petioled, not coriaceous, the

lobes or teeth conspicuously bristle-pointed._

[+] _Mature leaves glabrous on both sides or nearly so, oval, oblong or

somewhat obovate in outline, from moderately sinuate-pinnatifid to

deeply pinnatifid, turning various shades of red or crimson in late

autumn; large trees, with reddish coarse-grained wood; species closely

related and apparently readily hybridizing._

11. Q. rubra, L. (RED OAK.) _Cup saucer-shaped_ or flat, with a narrow

raised border (9--12'' in diameter), of rather fine closely appressed

scales, sessile or on a very short and abrupt narrow stalk or neck,

_very much shorter than the oblong-ovoid or ellipsoidal acorn_, which is

1' or less in length; leaves rather thin, turning dark red after frost,

moderately (rarely very deeply) pinnatifid, the lobes acuminate from a

broad base, with a few coarse teeth; bark of trunk dark gray,

smoothish.--Common both in rich and poor soil, westward to E. Minn. and

E. Kan. Timber coarse and poor.--Var. RUNCINATA, A. DC., is a form with

regular nearly entire lobes and the fruit nearly a half smaller; found

near St. Louis.

The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee · 第 63 / 104 段