444 XCIX. SOLANACEiE. 



2. C. Septum. Br. (Convolvulus. Linn.) Hedge Calystegia. JiuUand 

 Beauty. — >S'^. twining ; lis. sagittate, the lobes being truncate and the apex 

 generally acute ; pcd. quadrangular, l-flo\vered ; bracf.<; cordate, much longer 

 than the calyx. — 1|. A vigorous climber, in hedges and low grounds, Can. to 

 Car., VV. to 111. Stems 5— 8l" in length. Leaves cordate-sagittate, 2- — 4 long, 

 ^ as wide. Flowers numerous, large, white, with a reddish tinge, appearing 

 in long succession. The bracts are so close to the corolla as to appear like the 

 calyx which they entirely conceal. It is cultivated as a shade lor windows, 

 arbors, &c. June, July. 



Suborder 2. CUSCUTEJ3. 



Embryo without cotjiedons. Leafless, parasitic herbs. 



5. CUSCUTA. Tourn. 



Calyx 5 (rarely 4)-clefl : corolla globose-campanulate, 4 — 5-cleft, 



marescent ; stamens 4 — 5, inserted upon the corolla at the clefts ; 



stigmas, 2 ; capsule 2-celled, circumscissile at the base ; cells 2-seeded. 



— Herbs ivithout vcrdiire., germinating in the soil., at length withering at 



the root, and deriving their nourishment from other plants about which 



they twine from right to left. Stem yellowish or reddish. Leaves none^ 



or minute scales instead. Fls. variously aggregated. 



1. C. Gronovii. Willd. (C. Americana. Linn. C. vulgivaga and sau- 

 ruri. Eng.) — Sf. filiform, thick; fls. densely glomerate, in paniculate 



spikes, sessile ; sep. broad-ovate, obtusish ; cor. 5-cIeft, segments short, spread- 

 ing or reflexed, withering at the base of the cap.sule ; scales oblong, fimbriate ; 

 sty. diverging; stig. capitate. — An extremely delicate vine, found in damp 

 places, by rivulets. Can. and U. S. The stem is smooth, slender, 3 — 5f long, 

 springing from the soil at first, but after having twined itself about the low 

 plants in its way, and becoming fixed upon them by its lateral radicles, it with- 

 ers away at base, and is henceforth disconnected with the soil. It is of a light 

 orange color, wholly destitute of green, furnished with a few minute scales, 

 branching, always turning. from right to left, or hanging in festoons. Flowers 

 nearly globose, about a line long, and on peduncles of about the same length. 

 Calyx segments round-obtuse. Corolla twice as long, yellowish-white. Aug. 



2. C. Lepidanche. Wood. (C. glomerata. Choisy. Lepidanche composi- 

 tarum. Engebn.) — St. filiform ; fls. in compact masses surrounding the 



stem, .sessile, with scarious bracts intermixed ; cal. 5-sepaled, scarious ; cor. 

 tubular-campanulate, 5-lobed, longer than the calyx, lobes lanceolate, acute, 

 spreading or reflexed; antk. elongated; scales fimbriate.^® Abundant in Mo., 

 111. ! and la. ! on the Labiates, composites, &c. Flowers about 2" long, form- 

 ing compact, cylindrical masses while the stems decay, appearing as if spring- 

 ing from the stems of other plants. Corolla white and scarious. Anthers 

 partly exserted. July. 



0. a'tpressa. Chois. (Lepidanche adpressa. Eng.) Bracteate ; sep. obtuse 

 or orbicular-ovate. — 111. 



3. C. EPiLiNUM. Weih. (C. Eu'ropaea. Darl. cf« others.) Flax Dodder. — 

 Fls. sessile, in small, dense, remote heads ; cal. 5-parted, segments rather 



obtuse; cor. globo.se-cylindric, scarcely longer than the calyx, withering around 

 the capsule ; scales minute, crenate-dentate. — (T) Europe, introduced into the 

 Mid. States, growing on flax. Torr. Darl. Stems reddish-orange. Flowers 

 yellowish-white. Calyx thickish ; stamens included. Stigmas acute. Cap- 

 sule depressed-globose, surrounded with the withering corolla. June. 



Order XCIX. SOLANACE.E.— Nightshades. 



Plants herbaceous or shnihl)y, with a colorless juice. Lvs. alternate, the florjil ones sometimes collateraL 



Inflorescence often supra-axillary ; pedictls bractless. 



C«/.— .Sepals 4— 3. more or less uni'ed. mostly persistent 



Cor. regular, limb 4— 5-cleft, plaited in DRstivation, deciduous. 



Sta. 4—5 (Bometimes 1 abortive), inserted on the corolla, alternate with it« segments. 



