Part 23

1. S. Ohionis, Torr. & Gray.--Limestone cliffs, Ohio to Ind., Iowa, and Minn. June.

5. TIARELLA, L. FALSE MITRE-WORT.

Calyx bell-shaped, nearly free from the ovary, 5-parted. Petals 5, with claws, entire. Stamens 10, long and slender. Styles 2. Capsule membranaceous, 1-celled, 2-valved; the valves unequal. Seeds few, at the base of each parietal placenta, globular, smooth.--Perennials; flowers white. (Name a diminutive from [Greek: tia/ra], _a tiara_, or turban, from the form of the pod, or rather pistil, which is like that of Mitella, to which the name of _Mitre-wort_ properly belongs.)

1. T. cordifolia, L. Leaves from the rootstock or summer runners heart-shaped, sharply lobed and toothed, sparsely hairy above, downy beneath; stem leafless or rarely with 1 or 2 leaves (5--12' high); raceme simple; petals oblong, often subserrate.--Rich rocky woods, N. Eng. to Minn. and Ind., and southward in the mountains. April, May.

6. MITELLA, Tourn. MITRE-WORT. BISHOP'S-CAP.

Calyx short, coherent with the base of the ovary, 5-cleft. Petals 5, slender, pinnatifid. Stamens 5 or 10, included. Styles 2, very short. Capsule short, 2-beaked, 1-celled, with 2 parietal or rather basal several-seeded placentae, 2-valved at the summit. Seeds smooth and shining.--Low and slender perennials, with round heart-shaped alternate leaves on the rootstock or runners, on slender petioles; those on the flowering stems opposite, if any. Flowers small, in a simple slender raceme or spike. Fruit soon widely dehiscent. (Diminutive of _mitra_, a cap, alluding to the form of the young pod.)

1. M. diphylla, L. _Hairy; leaves heart-shaped, acute_, somewhat 3--5-lobed, toothed, _those on the many-flowered stem 2, opposite, nearly sessile_, with interfoliar stipules; flowers white, in a raceme 6--8' long; stamens 10.--Hillsides in rich woods; N. Eng. to N. C., west to Minn. and Mo. May.

2. M. nuda, L. Small and slender; _leaves rounded or kidney-form_, deeply and doubly crenate; _stem usually leafless, few-flowered_, very slender (4--6' high); flowers greenish; stamens 10.--Deep moist woods, in moss, N. Eng. to N. Y., Mich., Minn., and northward. May--July.

7. HEUCHERA, L. ALUM-ROOT.

Calyx bell-shaped, the tube cohering at the base with the ovary, 5-cleft. Petals 5, spatulate, small, entire. Stamens 5. Styles 2, slender. Capsule 1-celled, with 2 parietal many-seeded placentae, 2-beaked, opening between the beaks. Seeds oval, with a rough and close seed-coat.--Perennials, with the round heart-shaped leaves principally from the rootstock; those on the stems, if any, alternate. Petioles with dilated margins or adherent stipules at their base. Flowers in small clusters disposed in a prolonged and narrow panicle, greenish or purplish. (Named in honor of _John Henry Heucher_, a German botanist of the beginning of the 18th century.)

[*] _Flowers small, loosely panicled; stamens and styles exserted; calyx regular._

1. H. villosa, Michx. Stems (1--3 deg. high), petioles, and veins of the _acutely_ 7--9-lobed leaves _villous with rusty hairs_ beneath; calyx 11/2'' long; _petals spatulate-linear, about as long as the stamens_, soon twisted.--Rocks, Md. to Ga., west to Ind. and Mo. Aug., Sept.

2. H. Rugelii, Shuttlw. Stems slender, 1/2--2 deg. high, glandular-hirsute, as well as the petioles, etc.; _leaves round-reniform, with 7--9 short and broad rounded lobes_; flowers very small (1'' long); petals linear-spatulate, twice as long as the calyx-lobes; fruit narrow.--Shaded cliffs, S. Ill. to Tenn. and N. C.

3. H. Americana, L. (COMMON ALUM-ROOT.) Stems (2--3 deg. high), etc., _glandular_ and more or less _hirsute with short hairs_; leaves roundish, with short rounded lobes and crenate teeth; _calyx very broad_, 2'' long, the _spatulate petals not longer than its lobes_.--Rocky woodlands, Conn. to N. C., west to Minn., Mo., and Miss.

[*][*] _Flowers larger, in a very narrow panicle; calyx (3--4'' long) more or less oblique; stamens short; leaves rounded, slightly 5--9-lobed._

4. H. hispida, Pursh. Stems 2--4 deg. high; _hispid or hirsute_ with long spreading hairs (occasionally almost glabrous), scarcely glandular; _stamens soon exserted, longer than the spatulate petals_.--Mountains of Va. and N. C., west to Minn. and E. Kan. May, June.

5. H. pubescens, Pursh. Stem (1--3 deg. high) and petioles _granular-pubescent or glandular above_, not hairy, below often glabrous; _stamens shorter than the lobes of the calyx_ and the spatulate petals.--Rich woods, in the mountains, from Penn. to Ky., and southward. June, July.

8. CHRYSOSPLENIUM, Tourn. GOLDEN SAXIFRAGE.

Calyx-tube coherent with the ovary; the blunt lobes 4--5, yellow within. Petals none. Stamens 8--10, very short, inserted on a conspicuous disk. Styles 2. Capsule inversely heart-shaped or 2-lobed, flattened, very short, 1-celled with 2 parietal placentae, 2-valved at the top, many-seeded.--Low and small smooth herbs, with tender succulent leaves, and small solitary or leafy-cymed flowers. (Name compounded of [Greek: chryso/s], _golden_, and [Greek: sple/n], _the spleen_; probably from some reputed medicinal qualities.)

1. C. Americanum, Schwein. Stems slender, _decumbent_ and forking; _leaves principally opposite_, roundish or somewhat heart-shaped, obscurely crenate-lobed; _flowers distant_, inconspicuous, _nearly sessile_ (greenish tinged with yellow or purple).--Cold wet places, N. Scotia to N. Ga., west to Minn.

2. C. alternifolium, L. _Stems erect; leaves alternate_, reniform-cordate, doubly crenate or somewhat lobed; _flowers corymbose_.--Decorah, Iowa, west to the Rocky Mts., and north through Brit. Amer. (Eu., Asia.)

9. PARNASSIA, Tourn. GRASS OF PARNASSUS.

Sepals 5, imbricated in the bud, slightly united at the base, and sometimes also with the base of the ovary, persistent. Petals 5, veiny, spreading, at length deciduous, imbricated in the bud; a cluster of somewhat united gland-tipped sterile filaments at the base of each. Proper stamens 5, alternate with the petals, persistent; anthers introrse or subextrorse. Ovary 1-celled, with 4 projecting parietal placentae; stigmas 4, sessile, directly over the placentae. Capsule 4-valved, the valves bearing the placentae on their middle. Seeds very numerous, anatropous, with a thick wing-like seed-coat and little if any albumen. Embryo straight; cotyledons very short.--Perennial smooth herbs, with entire leaves, and solitary flowers on long scape-like stems, which usually bear a single sessile leaf. Petals white, with greenish or yellowish veins. (Named from Mount Parnassus; called Grass of Parnassus by Dioscorides.)

1. P. parviflora, DC. _Petals sessile_, little longer than the calyx (3'' long); _sterile filaments about 7 in each set, slender; leaves ovate or oblong_, tapering at base.--Sandy banks, Lab. to Mich., N. Minn., and westward.

2. P. palustris, L. Scapes 3--10' high; leaves heart-shaped; flower nearly 1' broad; _petals sessile_, rather longer than the calyx, few-veined; _sterile filaments 9--15 in each set, slender_.--Same range as the last. (Eu.)

3. P. Caroliniana, Michx. Scapes 9'--2 deg. high; flower 1--11/2' broad; _petals sessile_, more than twice as long as the calyx, many-veined; _sterile filaments 3 in each set, stout, distinct almost to the base_; leaves thickish, ovate or rounded, often heart shaped, usually but one low down on the scape and clasping.--Wet banks, N. Brunswick to Fla., west to Minn., Iowa, and La.

4. P. asarifolia, Vent. _Petals abruptly contracted into a claw_ at base; _sterile filaments 3 in each set; leaves rounded, kidney-shaped_; otherwise as in the foregoing.--High mountains of Va. and N. C.

10. HYDRANGEA, Gronov.

Calyx-tube hemispherical, 8--10 ribbed, coherent with the ovary, the limb 4--5-toothed. Petals ovate, valvate in the bud. Stamens 8--10, slender. Capsule 15-ribbed, crowned with the 2 diverging styles, 2-celled below, many-seeded, opening by a hole between the styles.--Shrubs, with opposite petioled leaves, no stipules, and numerous flowers in compound cymes. The marginal flowers are usually sterile and radiant, consisting merely of a showy membranaceous and colored flat and dilated calyx. (Name from [Greek: y(/dor], _water_, and [Greek: a)/ggos], _a vase_, from the shape of the capsule.)

1. H. arborescens, L. (WILD HYDRANGEA.) Glabrous or nearly so, 1--8 deg. high; leaves ovate, rarely heart-shaped, pointed, serrate, _green both sides_; cymes flat; flowers often all fertile, rarely all radiant.--Rocky banks, Penn. to Fla., west to Iowa and Mo.

2. H. radiata, Walt. Leaves _densely tomentose and paler or white beneath_.--S. C. and Ga. to Tenn. and Mo.

11. DECUMARIA, L.

Flowers all fertile. Calyx-tube turbinate, 7--10-toothed, coherent with the ovary. Petals oblong, valvate in the bud. Stamens 20--30. Styles united into one, persistent. Stigma thick, 7--10-rayed. Capsule 10--15-ribbed, 7--10-celled, many-seeded, bursting at the sides, the thin partitions at length separating into numerous chaffy scales.--A smooth climbing shrub, with opposite ovate or oblong entire or serrate leaves, no stipules, and numerous fragrant white flowers in compound terminal cymes. (Name said to be derived from _decem_, ten, referring to the fact of its being often 10-merous.)

1. D. barbara, L. Leaves shining, sometimes pubescent; capsule with the persistent style and stigma urn-shaped, pendulous.--Banks of streams; Dismal Swamp, Va., to Fla. and La.

12. PHILADELPHUS, L. MOCK ORANGE or SYRINGA.

Calyx-tube top-shaped, coherent with the ovary; the limb 4--5-parted, spreading, persistent, valvate in the bud. Petals rounded or obovate, large, convolute in the bud. Stamens 20--40. Styles 3--5, united below or nearly to the top. Stigmas oblong or linear. Capsule 3--5-celled, splitting at length into as many pieces. Seeds very numerous, on thick placentae projecting from the axis, pendulous, with a loose membranaceous coat prolonged at both ends.--Shrubs, with opposite often toothed leaves, no stipules, and solitary or cymose-clustered showy white flowers. (An ancient name, applied by Linnaeus to this genus for no obvious reason.)

1. P. inodorus, L. _Glabrous_; leaves ovate or ovate-oblong, pointed, entire or with some spreading teeth; flowers single or few at the ends of the diverging branches, pure white, scentless; _calyx-lobes acute_, scarcely longer than the tube.--Mountains of Va. to Ga. and Ala.

2. P. grandiflorus, Willd. A tall shrub, with long and recurved branches; like the last, but _somewhat pubescent_, with _larger flowers_, and the _calyx-lobes long and taper-pointed_. (P. modorus, var. grandiflorus, _Gray_.)--Along streams, Va. to Fla. Often cultivated.

P. CORONARIUS, L., the common MOCK ORANGE or SYRINGA of cultivation, from S. Eu., with cream-colored odorous flowers, has sometimes escaped.

13. ITEA, Gronov.

Calyx 5-cleft, free from the ovary or nearly so. Petals 5, lanceolate, much longer than the calyx, and longer than the 5 stamens. Capsule oblong, 2-grooved, 2-celled, tipped with the 2 united styles, 2-parted (septicidal) when mature, several-seeded.--Shrubs, with simple, alternate, petioled leaves, without stipules, and small white flowers in simple racemes. (Greek name of the Willow.)

1. I. Virginica, L. Leaves deciduous, oblong, pointed, minutely serrate; seeds oval, flattish, with a crustaceous coat.--Wet places, Penn. and N. J. to Fla., west to Mo. and La.

14. RIBES, L. CURRANT. GOOSEBERRY.

Calyx 5-lobed, often colored; the tube coherent with the ovary. Petals 5, inserted in the throat of the calyx, small. Stamens 5, alternate with the petals. Ovary 1-celled, with 2 parietal placentae and 2 distinct or united styles. Berry crowned with the shrivelled remains of the calyx, the surface of the numerous seeds swelling into a gelatinous outer coat investing a crustaceous one. Embryo minute at the base of hard albumen.--Low, sometimes prickly shrubs, with alternate and palmately-lobed leaves, which are plaited in the bud (except in one species), often fascicled on the branches; the small flowers from the same clusters, or from separate lateral buds. (From _riebs_, a German popular name for the currant. Grossularia was the proper name to have been adopted for the genus.)

Sec. 1. GROSSULARIA. (GOOSEBERRY.) _Stems mostly bearing thorns at the base of the leafstalks or clusters of leaves, and often with scattered bristly prickles; berries prickly or smooth. (Our species are indiscriminately called_ WILD GOOSEBERRY; _the flowers greenish.)_

[*] _Peduncles 1--3-flowered; calyx as high as broad; leaves roundish-heart-shaped, 3--5-lobed._

[+] _Calyx-lobes decidedly shorter than the tube; berries apt to be prickly._

1. R. Cynosbati, L. Stamens and undivided style not longer than the broadly bell-shaped calyx; berries large, armed with long prickles or rarely smooth.--Rocky woods, N. Brunswick to the mountains of N. C., and west to Minn. and Mo.

[+][+] _Calyx-lobes decidedly longer than the short and rather narrow tube; berries smooth, purple, sweet and pleasant._

2. R. gracile, Michx. (MISSOURI GOOSEBERRY.) Spines often long, stout and red; _peduncles long and slender; flowers white_ or whitish; filaments capillary, 4--6'' _long_, generally connivent or closely parallel, soon _conspicuously longer than the oblong-linear calyx-lobes_. (R. rotundifolium, _Man._, in part.)--Mich. to Tenn., west to Tex., Minn., and the Rocky Mts.

3. R. rotundifolium, Michx. Spines short; _peduncles short; flowers greenish_ or the lobes dull purplish; filaments slender, 2--3'' _long, more or less exceeding the narrowly oblong-spatulate calyx-lobes_.--W. Mass, and N. Y., south in the Alleghanies to N. C.

4. R. oxyacanthoides, L. _Peduncles very short, flowers greenish or dull purplish; stamens usually scarcely equalling the rather broadly oblong calyx-lobes_. (R. hirtellum, _Michx._)--Newf. to N. J., west to Ind., Minn., and westward. The common smooth-fruited gooseberry of the north, the whitish spines often numerous.

[*][*] _Flowers several in a nodding raceme, small and flattish, greenish._

5. R. lacustre, Poir. Young stems clothed with bristly prickles and with weak thorns; leaves heart-shaped, 3--5-parted, with the lobes deeply cut; calyx broad and flat; stamens and style not longer than the petals; fruit bristly (small, unpleasant).--Cold woods and swamps, Newf. to N. Eng., west to N. Y., Mich., and Minn.

Sec. 2. RIBESIA. (CURRANT.) _Thornless and prickless; racemes few--many-flowered, stamens short._

6. R. prostratum, L'Her. (FETID CURRANT.) Stems reclined; leaves deeply heart-shaped, 5--7-lobed, smooth, the lobes ovate, acute, doubly serrate; _racemes erect_, slender, calyx flattish; _pedicels and the (pale red) fruit glandular-bristly_.--Cold damp woods and rocks, Lab. to mountains of N. C., west to Mich., Minn., and the Rocky Mts.

7. R. floridum, L'Her. (WILD BLACK CURRANT.) _Leaves sprinkled with resinous dots_, slightly heart-shaped, sharply 3--5-lobed, doubly serrate; _racemes drooping, downy; bracts longer than the pedicels_; flowers large, whitish; calyx tubular-bell-shaped, smooth; _fruit round-ovoid, black, smooth_.--Woods, N. Eng. to Va., west to Ky., Iowa, and Minn.

8. R. rubrum, L., var. subglandulosum, Maxim. (RED CURRANT.) Stems straggling or reclined; leaves somewhat heart-shaped, obtusely 3--5-lobed, serrate, downy beneath when young; _racemes from lateral buds distinct from the leaf-buds, drooping_, calyx flat (green or purplish); _fruit globose, smooth, red_.--Cold bogs and damp woods, N. Eng. to N. J., west to Ind. and Minn.

Sec. 3. SIPHOCALYX. _Thornless and prickless; leaves convolute in the bud; racemes several-flowered; calyx-tube elongated; berry naked and glabrous._

9. R. aureum, Pursh. (MISSOURI or BUFFALO CURRANT.) Shrub 5--12 deg. high; leaves 3--5-lobed, rarely at all cordate; racemes short; flowers golden-yellow, spicy-fragrant; tube of salverform calyx (6'' long or less) 3 or 4 times longer than the oval lobes; stamens short; berries yellow or black.--Banks of streams, Mo. and Ark. to the Rocky Mts., and westward. Common in cultivation.

ORDER 36. CRASSULACEAE. (ORPINE FAMILY.)

_Succulent herbs, with perfectly symmetrical flowers; viz., the petals and pistils equalling the sepals in number (3--20), and the stamens the same or double their number_,--technically different from Saxifrageae only in this complete symmetry, and in the carpels (in most of the genera) being quite distinct from each other. Also, instead of a perigynous disk, there are usually little scales on the receptacle, one behind each carpel. Fruit dry and dehiscent; the pods (follicles) opening down the ventral suture, many-rarely few-seeded.--Stipules none. Flowers usually cymose, small. Leaves mostly sessile, in Penthorum not at all fleshy.

[*] Not succulent; the carpels united, forming a 5-celled capsule.

1. Penthorum. Sepals 5. Petals none. Stamens 10. Pod 5-beaked, many-seeded.

[*][*] Leaves, etc., thick and succulent. Carpels distinct.

2. Tillaea. Sepals, petals, stamens, and pistils 3 or 4. Seeds few or many.

3. Sedum. Sepals, petals, and pistils 4 or 5. Stamens 8--10. Seeds many.

1. PENTHORUM, Gronov. DITCH STONE-CROP.

Sepals 5. Petals rare, if any. Stamens 10. Pistils 5, united below, forming a 5-angled, 5-horned, and 5-celled capsule, which opens by the falling off of the beaks, many-seeded.--Upright weed-like perennials (not fleshy like the rest of the family), with scattered leaves, and yellowish-green flowers loosely spiked along the upper side of the naked branches of the cyme. (Name from [Greek: pe/nte], _five_, and [Greek: o(/ros], _a mark_, from the quinary order of the flower.)

1. P. sedoides, L. Leaves lanceolate, acute at both ends.--Open wet places, N. Brunswick to Fla., west to Minn., E. Kan., and Tex. July--Oct. Parts of the flower rarely in sixes or sevens.

2. TILLAEA, Mich.

Sepals, petals, stamens, and pistils 3 or 4. Pods 2--many-seeded.--Very small tufted annuals, with opposite entire leaves and axillary flowers. (Named in honor of _Michael Angelo Tilli_, an early Italian botanist.)

1. T. simplex, Nutt. Rooting at the base (1--2' high); leaves linear-oblong; flowers solitary, nearly sessile; calyx half the length of the (greenish-white) petals and the narrow 8--10-seeded pods, the latter with a scale at the base of each.--Muddy river-banks, Mass. to Md. July--Sept.

3. SEDUM, Tourn. STONE-CROP. ORPINE.

Sepals and petals 4 or 5. Stamens 8 or 10. Follicles many-seeded; a little scale at the base of each.--Chiefly perennial, smooth, and thick-leaved herbs, with the flowers cymose or one-sided. Petals almost always narrow and acute or pointed. (Name from _sedeo_, to sit, alluding to the manner in which these plants fix themselves upon rocks and walls.)

[*] _Flowers perfect and sessile, as it were spiked along one side of spreading flowering branches or of the divisions of a scorpioid cyme, the first or central flower mostly 5-merous and 10-androus, the others often 4-merous and 8-androus._

[+] _Flowers white or purple._

1. S. pulchellum, Michx. Stems ascending or trailing (4--12' high); _leaves terete, linear-filiform_, much crowded; spikes of the cyme several, densely flowered; _petals rose-purple_.--Va. to Ga., west to Ky., E. Kan., and Tex.; also cultivated in gardens. July.

2. S. Nevii, Gray. Stems spreading, simple (3--5' high); _leaves all alternate_, those of the sterile shoots _wedge-obovate or spatulate_, on flowering stems _linear-spatulate_ and flattish; cyme about 3-spiked, densely flowered; _petals white_, more pointed than in the next; the flowering 3 or 4 weeks later; leaves and blossoms smaller.--Rocky cliffs, mountains of Va. to Ala.

3. S. ternatum, Michx. Stems spreading (3--6' high); _leaves flat, the lower whorled in threes, wedge-obovate_, the upper scattered, _oblong_; cyme 3-spiked, leafy; _petals white_.--Rocky woods, N. Y. to Ga., west to Ind. and Tenn.

[+][+] _Flowers yellow._

S. ACRE, L. (MOSSY STONE-CROP.) Spreading on the ground, moss-like; leaves very small, alternate, almost imbricated on the branches, ovate, very thick; petals yellow.--Escaped from cultivation to rocky roadsides, etc. July. (Nat. from Eu.)

4. S. Torreyi, Don. Annual; stems simple or branched from the base (2--4' high); _leaves flat_ or teretish, scattered, _oblong_, 2--3'' long; petals rather longer than the _ovate sepals_; carpels at length widely divergent.--Mo. to Ark. and Tex.

[*][*] _Flowers in a terminal naked and regular cyme or cluster, more or less peduncled; leaves flat, obovate or oblong, mostly alternate._

[+] _Flowers perfect, 5-merous, 10-androus._

5. S. telephioides, Michx. Stems ascending (6--12' high), stout, leafy to the top; leaves oblong or oval, entire or sparingly toothed; cyme small; _petals flesh-color_, ovate-lanceolate, taper-pointed; _follicles tapering into a slender style_.--Dry rocks, N. J. to Ga., west to western N. Y. and S. Ind. June.

S. TELEPHIUM, L. (GARDEN ORPINE or LIVE-FOR-EVER.) Stems erect (2 deg. high), stout; leaves oval, obtuse, toothed; cymes compound; _petals purple_, oblong-lanceolate; _follicles abruptly pointed with a short style_.--Rocks and banks, escaped from cultivation in some places. July. (Adv. from Eu.)

S. REFLEXUM, L. Glabrous, erect, 1 deg. high; _leaves crowded, cylindric, subulate-tipped, spreading or reflexed; flowers yellow_, pedicelled.--Coast of Mass.; western N. Y.; rare. (Nat. from Eu.)

[+][+] _Flowers dioecious, mostly 4-merous and 8-androus._

6. S. Rhodiola, DC. (ROSEROOT.) Stems erect (5--10' high); leaves oblong or oval, smaller than in the preceding; flowers in a close cyme, greenish-yellow, or the fertile turning purplish.--Throughout Arctic America, extending southward to the coast of Maine, and cliffs of Delaware River; also in the western mountains. May, June. (Eu.)

ORDER 37. DROSERACEAE. (SUNDEW FAMILY.)

_Bog-herbs, mostly glandular-haired, with regular hypogynous flowers, pentamerous and withering-persistent calyx, corolla, and stamens, the anthers fixed by the middle and turned outward, and a 1-celled capsule with twice as many styles or stigmas as there are parietal placentae._--Calyx imbricated. Petals convolute. Seeds numerous, anatropous, with a short and minute embryo at the base of the albumen.--Leaves circinate in the bud, i.e., rolled up from the apex to the base as in Ferns. A small family of insectivorous plants.

1. DROSERA, L. SUNDEW.

Stamens 5. Styles 3, or sometimes 5, deeply 2-parted so that they are taken for 6 or 10, slender, stigmatose above on the inner face. Capsule 3- (rarely 5-) valved; the valves bearing the numerous seeds on their middle for the whole length.--Low perennials or biennials; the leaves clothed with reddish gland-bearing bristles, in our species all in a tuft at the base; the naked scape bearing the flowers in a 1-sided raceme-like inflorescence, which nods at the undeveloped apex, so that the fresh-blown flower (which opens only in sunshine) is always highest. The plants yield a purple stain to paper. (The glands of the leaves exude drops of a clear glutinous fluid, glittering like dew-drops, whence the name, from [Greek: drosero/s], _dewy_.)

1. D. rotundifolia, L. (ROUND-LEAVED SUNDEW.) _Leaves orbicular_, abruptly narrowed into the _spreading hairy petioles_; seeds spindle-shaped, the coat loose and chaff-like; flowers white, the parts sometimes in sixes.--Peat-bogs, Lab. to Minn., Ind., and southward; common. July, Aug. (Eu.)

2. D. intermedia, Hayne, var. Americana, DC. _Leaves spatulate-oblong_, tapering into the long rather _erect naked petioles_; seeds oblong, with a rough close coat; flowers white. (D. longifolia, _Gray_, Manual.)--Bogs, with the same range but less common. June--Aug.--Plant raised on its prolonged caudex when growing in water. (Eu.)