The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee

Part 59

Chapter 593,280 wordsPublic domain

1. E. annuum, Nutt. Annual, erect, leafy, naked above, 2 deg. high, white-floccose-tomentose throughout; leaves oblong-lanceolate, acute at both ends, short-petiolate, flat; bracts small, triangular; involucres numerous in terminal cymes, turbinate, shortly pedicelled, 1--11/2'' long, very tomentose; flowers white, the outer sepals oblong obovate, 1'' long or less.--Central Kan. to Col., and southward.

(Addendum) 2. E. Alleni, Watson. Perennial, white-tomentose throughout, the tall scape-like stem repeatedly dichotomous above; radical leaves lanceolate, long-petiolate, the upper in whorls of 4 or 5, ovate to oblong-ovate, very shortly petiolate, much reduced above; involucres mostly sessile; flowers glabrous, yellow, the segments elliptical.--Near White Sulphur Springs, W. Va. (_T. F. Allen_).

2. OXYRIA, Hill. MOUNTAIN SORREL.

Calyx herbaceous, of 4 sepals; the outer smaller and spreading, the inner broader and erect (but unchanged) in fruit. Stamens 6. Stigmas 2, sessile, tufted. Achene lenticular, thin, flat, much larger than the calyx, surrounded by a broad veiny wing. Seed flattened contrary to the wing. Embryo straight, in the centre of the albumen, slender.--Low alpine perennial, with round-kidney-form and long-petioled leaves chiefly from the root, obliquely truncate sheaths, and small greenish flowers clustered in panicled racemes on a slender scape. (Name from [Greek: o)xy/s], _sour_, in allusion to the acid leaves.)

1. O. digyna, Hill. Leaves all round-kidney-form, usually notched at the end; fruit orbicular.--Alpine region of the White Mts., and far north and westward. (Eu.)

3. RUMEX, L. DOCK. SORREL.

Calyx of 6 sepals; the 3 outer herbaceous, sometimes united at base, spreading in fruit; the 3 inner larger, somewhat colored, enlarged after flowering (in fruit called _valves_) and convergent over the 3-angled achene, veiny, often bearing a grain-like tubercle on the back. Stamens 6. Styles 3; stigmas tufted. Embryo slightly curved lying along one side of the albumen, slender.--Coarse herbs, with small and homely (mostly green) flowers, which are crowded and commonly whorled in panicled racemes; the petioles somewhat sheathing at base. (The ancient Latin name; of unknown etymology.)

Sec. 1. LAPATHUM. (DOCK.) _Flowers perfect or monoeciously polygamous; herbage not sour or scarcely so; none of the leaves halberd-shaped. (Flowering through the summer.)_

[*] _Perennials, 1--7 deg. high, mostly with fusiform roots; valves not bearing bristles._

[+] _Valves (large, 3'' broad or more, thin) all naked or one with a small grain._

R. PATIENTIA, L. (PATIENCE DOCK.) A very tall species, with ovate-oblong and lanceolate leaves (broadest above the base), those from the root 2--3 deg. long, and one of the heart-shaped nearly or quite entire valves (3'' broad) bearing a small grain, or its midrib thickened at base.--N. Eng and N. Y. (Adv. from Eu.)

1. R. venosus, Pursh. Stems from running rootstocks, erect (1 deg. high or less), with conspicuous dilated stipules; leaves on short but rather slender petioles, ovate or oblong to lanceolate (3--6'; long), acute or acuminate, only the lowest obtuse at base; panicle nearly sessile, short, dense in fruit; valves entire, glandless, broadly cordate with a deep sinus, 9--12'' in diameter, bright rose-color.--Sask. to central Mo. and Kan., and westward.

[+][+] _Valves smaller, one or more of them conspicuously grain-bearing._

[++] _Indigenous; leaves not wavy, none heart-shaped, except the lowest of n. 5._

2. R. Britannica, L. (GREAT WATER-DOCK.) Tall and stout (5--6 deg. high); leaves oblong-lanceolate, rather acute at both ends, transversely veined, and with obscurely erose-crenulate margins (the lowest, including the petiole, 1--2 deg. long, the middle rarely truncate or obscurely cordate at base); racemes upright in a large compound panicle, nearly leafless; whorls crowded; _pedicels capillary, nodding, about twice the length of the fruiting calyx; the valves orbicular or round-ovate_, very obtuse, obscurely heart-shaped at base, _finely reticulated_, entire or repand-denticulate (2--3'' broad), all grain-bearing. (R. orbiculatus, _Gray_.)--Wet places, N. Eng. to N. J., west to Minn, and Kan.

3. R. altissimus, Wood. (PALE DOCK.) Rather tall (2--6 deg. high); _leaves ovate- or oblong-lanceolate_, acute, pale, thickish, obscurely veiny (the cauline 3--6' long, contracted at base into a short petiole); racemes spike-like and panicled, nearly leafless; whorls crowded; _pedicels nodding, shorter than the fruiting calyx; valves broadly ovate_ or obscurely heart-shaped, obtuse or acutish, entire, loosely reticulated (about 2'' broad), one with a conspicuous grain, the others with a thickened midrib or naked. (R. Britannica, _Gray_; not _L._)--Moist grounds, N. Y. and N. J. to Minn., and Kan.

4. R. salicifolius, Weinmann. (WHITE DOCK.) Rather low (1--3 deg. high); root white, _leaves narrowly or linear-lanceolate_, or the lowest oblong; whorls much crowded; _pedicels much shorter than the fruiting calyx; valves deltoid-ovate_, obtusish or acutish (about 11/2'' long), one, two or sometimes all with a conspicuous often very large grain; otherwise nearly as n. 3.--Salt marshes, from Newf. to N. Eng., about the Great Lakes, and far westward.

5. R. verticillatus, L. (SWAMP DOCK.) Rather tall (3--5 deg. high); leaves lanceolate or oblong-lanceolate, rather obtuse, thickish, pale-green, the lowest often heart-shaped at base; racemes nearly leafless, elongated, loose, the whorls crowded or the lower ones distant; fruit-bearing _pedicels slender, club-shaped, abruptly reflexed, 3--4 times longer than the fruiting calyx; valves dilated-rhomboid, obtusely somewhat pointed, strongly rugose-reticulated_, each bearing a very large grain.--Wet swamps, common.

[++][++] _Naturalized European weeds; lower leaves mostly heart-shaped at base._

R. CRISPUS, L. (CURLED DOCK.) Smooth (3--4 deg. high); _leaves with strongly wavy-curled margins, lanceolate_, acute, the lower truncate or scarcely heart-shaped at base; _whorls crowded in prolonged wand-like racemes, leafless above; valves round-heart-shaped, obscurely denticulate_ or entire, mostly all grain-bearing.--In cultivated and waste ground, very common. A hybrid of this with the next is reported from Mass., N. Y., and Md.

R. OBTUSIFOLIUS, L. (BITTER DOCK.) Stem roughish; _lowest leaves ovate-heart-shaped, obtuse_, rather downy on the veins beneath, somewhat wavy-margined, the _upper oblong-lanceolate, acute; whorls loose and distant; valves ovate-halberd-shaped, with some sharp awl-shaped teeth at base_, strongly reticulated, one of them principally grain-bearing.--Fields, etc., common.

R. SANGUINEUS, L. _Leaves oblong-lanceolate_, often fiddle shaped, wavy-margined; _whorls distant, in long slender leafless spikes_; pedicels very short, jointed at base; _valves narrowly oblong, obtuse, entire_, one at least grain-bearing; veins of the leaf red, or green.--Waste and cultivated ground.

R. CONGLOMERATUS, Murray. (SMALLER GREEN DOCK.) Like the last, but leaves not fiddle-shaped, and panicle leafy; pedicels short, jointed below the middle; valves acutish, all grain-bearing.--Moist places.

[*][*] _Annuals, low; valves bearing long awns or bristles._

6. R. maritimus, L. (GOLDEN DOCK.) Minutely pubescent, diffusely branched, 6--12' high; leaves lance-linear, wavy-margined, the lower auricled or heart-shaped at base; whorls excessively crowded in leafy and compact or interrupted spikes; valves rhombic-oblong, lance-pointed, each bearing 2--3 long awn-like bristles on each side, and a large grain on the back.--Sea-shore, Mass. to N. C.; also from Ill. to Minn., and westward.

Sec. 2. ACETOSA. (SORREL.) _Flowers dioecious, small, in a terminal naked panicle; herbage sour; some leaves halberd-shaped; smooth perennials, spreading by running rootstocks, flowering in spring._

7. R. hastatulus, Baldw. Stem simple, 1--2 deg. high; leaves nearly as in the next; _pedicels jointed at or below the middle; valves of the fruiting calyx round-heart-shaped_, thin, finely reticulated, naked, _many times larger than the achene_. (R. Engelmanni, _Ledeb._)--S. W. Ill. to E. Kan., Tex., and Fla.; Riverhead, Long Island (_Young_).

R. ACETOSELLA, L. (FIELD or SHEEP SORREL.) Low (6--12' high); leaves narrow-lanceolate or linear, halberd-form, at least those of the root, the narrow lobes entire; _pedicels jointed with the flower; valves scarcely enlarging in fruit, ovate_, naked.--Abundant everywhere. (Nat. from Eu.)

R. ACETOSA, L. (SORREL DOCK.) Like the last, but taller (1--3 deg. high); leaves oblong or broadly lanceolate; _valves enlarging in fruit and orbicular, the outer reflexed_.--Charlotte, Vt., and Penn Yan, N. Y. (Nat. from Eu.)

4. POLYGONUM, Tourn. KNOTWEED.

Calyx mostly 5-parted; the divisions often petal-like, all erect in fruit, withering or persistent. Stamens 4--9. Styles or stigmas 2 or 3; achene accordingly lenticular or 3-angular. Embryo placed in a groove on the outside of the albumen and curved half-way around it; the radicle and usually the cotyledons slender.--Pedicels jointed. Ours all herbaceous, with fibrous roots (except n. 19), flowering through late summer and early autumn. (Name composed of [Greek: poly/s], _many_, and [Greek: go/ny], _knee_, from the numerous joints.)

Sec. 1. POLYGONUM proper. _Flowers in axillary fascicles or spicate with foliaceous bracts; leaves and bracts jointed upon a very short petiole adnate to the short sheath of the 2-lobed or lacerate scarious stipules; stems striate; calyx 5--6-parted, usually more or less herbaceous; stamens 3--8, the 3 inner filaments broad at base; styles 3; cotyledons incumbent; albumen horny; glabrous annuals, except n. 1._ (Sec. Avicularia, _Meisn._)

[*] _Leafy throughout._

1. P. maritimum, L. _Perennial_, at length woody at base (or sometimes annual), prostrate, _glaucous_, the stout stems very shortly jointed; _leaves thick_, oval to linear-oblong (3--10'' long), exceeding the nodes; stipules very conspicuous; sepals petaloid; stamens 8; _achene smooth and shining, exserted_.--Sea-coast from Mass. to Ga. (Eu.)

2. P. aviculare, L. Slender, _mostly prostrate or ascending, bluish-green_; leaves oblong to lanceolate (3--10'' long), usually acute or acutish; _sepals hardly 1'' long_, green with pinkish margins; stamens 8 (rarely 5); achene dull and minutely granular, mostly included.--Common everywhere in yards, waste places, etc. (Eu., Asia.)

3. P. erectum, L. _Stouter, erect_ or ascending (1--2 deg. high), _yellowish_; leaves oblong or oval (1/2--21/2' long), usually obtuse; _flowers mostly 11/2'' long_, often yellowish, on more or less exserted pedicels, stamens 5--6; achene dull, included (P. aviculare, var. erectum, _Roth_.)--Common, by waysides, etc.

[*][*] _Leaves much reduced above and bract-like._

4. P. ramosissimum, Michx. Erect or ascending (2--4 deg. high), _yellowish green_; leaves lanceolate to linear (1--21/2' long), acute; _flowers_ and achene _as in_ n. 3, but sepals more frequently 6, the _stamens_ 3--6, and the achene mostly smooth and shining--Sandy shores and banks of streams, E. Mass to N. Y., west to Minn., Ark., Tex., and far westward.

5. P. tenue, Michx. _Stem angled_, erect (1/2--11/2 deg. high), glabrous, or slightly scabrous at the nodes; _leaves_ narrowly linear to lanceolate (1--2' long), _3-nerved_, acute at each end and often cuspidate, the margins somewhat scabrous and at length revolute; _flowers_ often solitary, _nearly sessile; stamens_ 8; achene included, dull black--Dry soil, N. Eng. to S. C., west to Minn., Mo., and Tex.

6. P. camporum, Meisn. _Stem terete_, erect or ascending (2--3 deg. high), glabrous; _leaves deciduous_, linear to oblong, usually short; _pedicels slender, exserted from the scarious sheaths_; stamens 8.--E. Kan. to Tex.

Sec. 2. PERSICARIA _Flowers in dense spikes, with small scarious bracts; leaves not jointed on the petiole; sheaths cylindrical, truncate, entire, naked or ciliate-fringed or margined; calyx colored, 5-parted, appressed to the fruit; stamens 4--8, filaments filiform; cotyledons accumbent._

[*] _Sheaths and bracts not ciliate or fringed; sepals not punctate; style 2-cleft._

7. P. lapathifolium, L. Annual, branching, 1--4 deg. high, glabrous or the peduncles often minutely glandular; leaves lanceolate, attenuate upward from near the cuneate base and acuminate somewhat scabious with short appressed hairs on the midrib and margin or rarely floccose-tomentose beneath; sheaths and bracts rarely somewhat ciliolate; spikes oblong to linear (1/2--2' long), dense, erect or nearly so; flowers white or pale rose-color; stamens 6; achene ovate, rarely 1'' broad. (P. nodosum, _Pers._, P. incarnatum, _Man._, in part.)--Wet places; N. Eng. and Can. to Ill., Wisc., and far westward. Very variable. (Eu.)

Var. incarnatum, Watson. Leaves often large (6--12' long, 1--3' wide); spikes more slender and elongated (2--4' long), nodding. (P. incarnatum, _Ell._)--Penn. to Ill., Mo., and southward.

Var. incanum, Koch. Low (6--12' high); leaves small, obtusish, more or less hoary beneath with floccose tomentum; spikes short.--Cayuga Lake, N. Y., Ont., shores of L. Superior, and northwestward. (Eu.)

8. P. Pennsylvanicum, L. A similar species, but the _branches above and especially the peduncles beset with stipitate glands_; flowers larger and often bright rose-color, in short erect spikes, often on exserted pedicels; stamens usually 8; achene nearly orbicular, over 1'' broad.--Moist soil, in open waste places, common.

9. P. amphibium, L. Perennial, _aquatic_ or rooting in the mud, _stout and glabrous_ or nearly so, not branching above the rooting base; _leaves usually floating, thick_, smooth and shining above, mostly long petioled, _elliptical to oblong_ or sometimes lanceolate, _acutish_, cuneate or cordate at base (2--5' long); spike terminal, _dense, ovate or oblong_ (1/2--1' long); flowers bright rose-color (11/2--3'' long); the 5 stamens and 2-cleft style exserted.--Widely distributed and rather common. (Eu., Asia)

10. P. Muhlenberghii, Watson. Perennial, in muddy or dry places, decumbent or suberect, _scabrous with short appressed or glandular hairs; leaves thinner, rather broadly lanceolate, narrowly acuminate_ (4--7' long); _spikes more elongated_ (1--3' long), often in pairs; flowers and fruit nearly as in the last. (P. amphibium, var. terrestre, _Gray_, Manual; not _Lurs_)--N. Eng. to Fla., westward across the continent.

[*][*] _Sheaths and bracts bristly ciliate or the sheaths foliaceously margined._

[+] _Sepals not punctate; style 2-cleft; achene somewhat flattened._

11. P. Hartwrightii, Gray. _Perennial_, very closely allied to n. 9, growing usually in mud, the ascending stems rooting at base and very leafy, _more or less rough-hairy_, at least on the sheaths and bracts, the former ciliate and _often with abruptly spreading foliaceous borders_; leaves rather narrow (2--7' long), on very short petioles; _flowers and fruit as in n. 9._--N. Eng. and N. Y., to Minn., Iowa, and far westward. When growing in water the floating leaves are thicker and glabrous.

12. P. Careyi, Olney. Annual, erect, the stem (3--5 deg. high) and peduncles _glandular-bristly; leaves narrowly lanceolate_, attenuate to both ends, roughish; sheaths ciliate or sometimes margined; spikes slender, loose and nodding; flowers purplish; _stamens mostly_ 5.--Shady swamps, S. Maine and N. H. to Penn. and Ont.

P. ORIENTALE, L. (PRINCE'S FEATHER.) Tall branching annual, _soft-hairy; leaves ovate_ or oblong, pointed, distinctly petioled; _sheaths_ ciliate or _often with an abrupt spreading border_; flowers large, bright rose-color, _in dense cylindrical nodding spikes; stamens 7_.--Sparingly escaped from gardens into waste grounds. (Adv. from India)

P. PERSICARIA, L. (LADY'S THUMB.) Nearly _smooth and glabrous_ (12--18' high); sheaths more or less bristly-ciliate; leaves lanceolate, pointed, roughish, often marked with a dark triangular or lunar spot near the middle; _spikes ovoid or oblong, dense, erect, on smooth_ (or at least not glandular) _peduncles_; stamens mostly 6; _styles half 2--3-cleft_; achene gibbous-flattened or sometimes triangular, smooth and shining.--Waste and damp places, very common. (Nat. from Eu.)

[+][+] _Sepals conspicuously dotted and leaves punctate (except n. 13), with acrid juice; style mostly 3-parted, and achene triangular; sheaths bristle-fringed._

13. P. hydropiperoides, Michx. (MILD WATER-PEPPER.) _Perennial, not acrid_; stem smooth (1--3 deg. high), branching; the narrow _sheaths hairy_; leaves narrowly lanceolate, sometimes oblong; _spikes erect, slender_, sometimes filiform, often interrupted at base (1--21/2' long); flowers small, flesh-color or nearly white; _sepals not dotted; stamens 8; achene sharply triangular, smooth and shining_.--Wet places and in shallow water; common, especially southward.

14. P. Hydropiper, L. (COMMON SMARTWEED or WATER-PEPPER.) _Annual_, 1--2 deg. high, smooth; leaves narrowly to linear-lanceolate; _spikes nodding_, usually short or interrupted; flowers mostly greenish; _stamens_ 6; style 2--3-parted; _achene dull_, minutely striate.--Moist or wet grounds; apparently introduced eastward, but indigenous north and westward. (Eu.)

15. P. acre, HBK. (WATER SMARTWEED.) _Perennial_, nearly smooth; stems rooting at the decumbent base, 2--5 deg. high; leaves larger and longer than in the last, taper-pointed; _spikes erect; flowers whitish_, sometimes flesh-color; _stamens 8_; style _mostly 3-parted; achene smooth and shining_.--Wet places; common, especially southward.

Sec. 3. BISTORTA. _Glabrous alpine perennials, with thick creeping rootstocks and simple stems; flowers in a spike-like raceme; calyx colored, deeply 5-cleft; stamens 8; styles 3, long._

16. P. viviparum, L. Smooth, dwarf (4--8' high), bearing a linear erect spike of flesh-colored flowers (or often little red bulblets in their place); leaves lanceolate.--Alpine summits of N. Eng., shores of L. Superior, and northward. (Eu.)

Sec. 4. TOVARA. _Perennials; flowers in loose naked long and slender spikes; calyx rather herbaceous (greenish), unequally 4-parted; stamens 5; styles 2, distinct, rigid and persistent on the smooth lenticular achene._

17. P. Virginianum, L. Almost smooth; stem terete, upright (2--4 deg. high); sheaths cylindrical, hairy and fringed; leaves ovate, or the upper ovate-lanceolate, taper-pointed, rounded at the base, short-petioled, rough-ciliate (3--6' long); flowers 1--3 from each bract, somewhat curved, the styles deflexed in fruit, minutely hooked.--Thickets in rich soil, common. (Asia.)

Sec. 5. TINIARIA. _Annuals or perennials, mostly twining or climbing, and with petioled cordate or sagittate leaves; flowers in loose panicles or racemes or in terminal or axillary clusters; calyx green with colored margins, 5- (rarely 4-) parted; stamens mostly 8; styles or stigmas 3_ (2 in n. 18).

[*] _Annuals, erect, or somewhat climbing by reflexed prickles on the angles of the stem and petioles; sepals (pale rose-color or white) not keeled; bracts chaff-like._

18. P. arifolium, L. (HALBERD-LEAVED TEAR-THUMB.) _Stem grooved-angled; leaves halberd-shaped_, taper-pointed, _long-petioled_; flowers somewhat racemed (few); peduncles glandular-bristly; calyx often 4-parted; _stamens 6; styles 2_, very short; _achene lenticular_ (large).--Low grounds. (Asia.)

19. P. sagittatum, L. (ARROW-LEAVED TEAR-THUMB.) _Stem 4-angled; leaves arrow-shaped, short-petioled_; flowers capitate; peduncles smooth; _stamens mostly 8; styles 3_, slender; _achene sharply 3-angled_.--Low grounds, common.--Slender, smooth except the angles of the stem and midrib beneath, which are armed with fine and very sharp saw-toothed prickles. (Asia.)

[*][*] _Stems not prickly; calyx with the 3 outer divisions keeled, at least in fruit; flowers in loose panicled racemes; bracts short-sheathing._

P. CONVOLVULUS, L. (BLACK BINDWEED.) _Annual_, twining or procumbent, low, _roughish, the joints naked_; leaves halberd-heart shaped, pointed; flowers in small interrupted corymbose racemes; _outer calyx-lobes keeled_; achene smoothish.--Cult. and waste grounds, common. (Nat. from Eu.)

20. P. cilinode, Michx. _Perennial, minutely downy; the sheaths fringed_ at the base with reflexed bristles; leaves heart-shaped and slightly halberd-shaped, taper-pointed; racemes panicled; _calyx-lobes obscurely keeled_; achene very smooth and shining.--Copses and rocky hills, N. Eng. to mountains of N. C., west to Mich, and Minn. Climbing 3--9 deg. high.

21. P. dumetorum, L., var scandens, Gray. (CLIMBING FALSE BUCKWHEAT.) _Perennial, smooth; sheaths naked_; leaves heart-shaped or slightly halberd-shaped, pointed; racemes interrupted, leafy; the 3 outer _calyx-lobes strongly keeled and in fruit winged_; achene smooth and shining.--Moist thickets, common. Twining 8--12 deg. high over bushes.

P. CUSPIDATUM, Sieb. & Zucc. Perennial, erect, stout and tall, glabrous except the loose axillary panicled racemes; leaves round-ovate, shortly acuminate, truncate or cordate at base; outer sepals broadly winged in fruit.--Occasionally escaped from gardens. (Japan.)

5. FAGOPYRUM, Tourn. BUCKWHEAT.

Calyx petal-like, equally 5-parted, withering and nearly unchanged in fruit. Stamens 8. Styles 3; stigmas capitate. Achene 3-sided, longer than the calyx. Embryo large, in the centre of the albumen, which it divides into 2 parts, with very broad and foliaceous plaited and twisted cotyledons.--Glabrous annuals, with triangular-heart-shaped or halberd-shaped leaves, semicylindrical sheaths, and corymbose racemes or panicles of white flowers, often tinged with green or rose-color. (Name from _fagus_, the beech, and [Greek: pyro/s], _wheat_, from the resemblance of the grain to the beech-nut; so the English name Buckwheat, from the German _buche_, beech.)

F. ESCULENTUM, Moench. (BUCKWHEAT.) Smoothish; flower with 8 honey-bearing yellow-glands interposed between the stamens; achene acute and entire, smooth and shining.--Old fields, remaining as a weed after cultivation, and escaping into copses. June--Sept. (Adv. from Eu.)

F. TATARICUM, Gaertn. (INDIA-WHEAT.) Flowers very small, on shorter pedicels; achene very dull and roughish, the sides sulcate.--An occasional escape from cultivation. (Adv. from Asia.)

6. POLYGONELLA, Michx.

Flowers perfect or polygamous-dioecious. Calyx 5-parted, petaloid, loosely persistent about the achene, the 3 inner divisions often enlarging in fruit, in which case the outer are usually spreading. Stamens 8. Styles 3, and achene 3-angular. Embryo slender, straight or nearly so, toward one side of the albumen.--Slender glabrous annuals or perennials, with alternate mostly linear leaves jointed at the base, and rather rigid truncate or oblique naked sheaths and bracts. Flowers on solitary jointed pedicels (nodding in fruit) in slender panicled racemes. (Diminutive of Polygonum.)

1. P. articulata, Meisn. Annual, erect, branching, glaucous, 4--12' high; leaves linear-filiform, deciduous; flowers rose-color, nodding, in very slender racemes, the calyx a little enlarged in fruit; 3 inner filaments dilated at base; achene exserted, smooth. (Polygonum articulatum, _Gray_.)--Dry, sandy soil; on the coast from Maine to N. J., and along the Great Lakes.

7. BRUNNICHIA, Banks.

Calyx 5-parted; the divisions somewhat petal-like, oblong, connivent and coriaceous in fruit, the base and almost the whole length of the pedicel winged on one side. Stamens 8; filaments capillary. Styles 3, slender; stigmas depressed-capitate. Ovule pendulous on a slender erect funiculus; seed erect, 6-grooved. Achene obtusely triangular, partly 3-celled, enclosed in the indurated calyx. Embryo in one of the angles of the mealy albumen, somewhat curved.--Somewhat shrubby with grooved stems, climbing by tendrils from the ends of the branches. (Named for _F. Brunnich_, a Danish naturalist.)