CUSCU TA CEA E. 755 



than one-half the length of the tube, 2 cleft or emarginate, the crenulations not 

 extending to the base; stigmas linear-filiform; capsule circumscissile, the withering 

 corolla borne on its summit. On flax, N. S. to N. J. and Penn. Introduced from 

 Europe. July-Aug. 



2. Cuscuta tpituymum Murr. THYME DODDER. CLOVER DODDER. ;I. 

 F. f. 2957.) Stems filiform, red; flowers sessile in small dense clusters, pinkish, 

 about 2 mm. long. Calyx 4-5-lobed, more than one half the length of the 

 cylindric corolla- tube, the lobes acute; corolla 4-5-lobed, the lobes erect, about 

 one-half as long as the tube, acute, its scales strongly incurved, crenulate nearly 

 or quite to the base; stigmas filiform; capsule circumscissile, capped by the wither- 

 ing corolla. Usually on clover, Me. and Ont. to Conn., N. Y., Pa. and S. Dak. 

 Introduced from Europe. July-Sept. 



3. Cuscuta arvensis Beyrich. FIELD DODDER. (I. F. f. 2958.) Plant 

 pale yellow; steins filiform, the flowers nearly sessile in small clusters. Calyx 

 broad, 5-lobed, the. lobes obtuse; corolla nearly campanulate, 5-lobed, the lobes 

 acute or acuminate, as long as the tube, their tips reflexed, its scales large, ovate, 

 densely fringed all around with short irregular processes; stamens not exserted; 

 style shorter than the ovary; stigmas capitate; capsule depressed globose, indehis- 

 cent. On various herbs and low shrubs, Mass, to the N. W. Terr., P'la., Tex., 

 Mex. and Cal. Also in S. Am. July-Aug. 



4. Cuscuta Polygondrum Engelm. SMART-WEED DODDER. (I. F. f. 2959.) 

 Plant orange-yellow; stems rather coarse; flowers sessile or nearly so in dense 

 clusters. Calyx short, 4-5-lobed, the lobes ovate-oblong, acute 'or acutish; lobes 

 of the corolla 4 or 5, triangular-ovate, acute, the scales usually obsolete, wanting. 

 or consisting of only 2 or 3 slender processes on each side of the attached lower 

 portion of the filament; styles shorter than the ovary; stigmas capitate, capsule 

 globose. On Polygonunis and other herbs, Minn, and Wis. to Neb. and Ark. 

 Abo in Penn. and Del. Range probably more extensive. July-Sept. 



5. Cuscuta indecora Choisy. PRETTY DODDER. (I. F. f. 2960.) Stems 

 rather stout; flowers white, 3 mm. long, pedicelled in loose cymes. Calyx 5-lobed, 

 lobes ovate to lanceolate, acute; corolla camp.uiulate, 5-lobed, the lobes triangular, 

 minutely crenulate, spreading, nearly as long as the tube; scales ovate, erect, 

 irregularly fringed with short processes all around; stigmas capitate; capsule 

 oblong, acute. On various herbs and low shrubs, 111. to Neb., Fla., Tex., and 

 Mex. Also in the W. Indies and S. Am. June- Aug. 



6. Cuscuta Coryli Engelm. HAZEL DODDER. (I. F. f. 2961.) Stems 

 coarse; flowers about 2 mm. long, pedicelled in cymes. Calyx 4-5-lobed, the 

 lobes triangular or triangular-lanceolate, acutish; corolla campanulate, 4-5- 

 lobed, the lobes minutely crenulate, nearly erect, triangular, acute, about as long 

 as the tube; scales small, oval, obtuse, often with only a few processes on each 

 side; styles shorter than the ovary; stigmas capitate; capsule oblong, pointed. 

 On hazels and other shrubs or herbs, Conn, to Va., S. Dak. and Ark. July-Aug. 



7. Cuscuta Cephalanthi Engelm. BUTTON-BUSH DODDER. (I. F. f. 2962.) 

 Plant yellow; stems rather coarse; flowers about 2 mm. long, short-pedicelled, 

 clustered; calyx 5-lobed, the lobes ovate, obtuse; corolla cylindric-campanulate, 

 its lobes ovate, obtuse, spreading, one-half the length of the tube or less; scales 

 about as long as the lobes, fringed mainly toward the apex with irregular pro- 

 cesses; styles slender, about as long as the ovary; stigmas capitate; capsule 

 depressed-globose. 3 mm. in diameter. On shrubs and tall herbs, Penn. to Minn., 

 the N. \V. Terr., Tex. and Ariz. July-Aug. 



8. Cuscuta Gronovii Willd. GRONOVIUS' DODDER. LOVE-VINE. (I. F. f. 

 2963.) Stems yellow to orange, slender, flowers usually short-pedicelled, numerous 

 in dense cymes. Calyx riot bracted, its lobes ovate, obtuse, shorter than the 

 corolla-tube ; corclla campanulate, the lobes ovate, obtuse, spreading, nearly 

 as long as the tube, the scales narrow, thickly fringed about. the summit and 

 sparingly along the sides with long slander processes; styles slender; stigmas 

 capitate; capsule 3 mm. in diameter, enveloped in or capped by the withering 

 deciduous corolla. On herbs and low shrubs, N. S. to Manitoba, Fla. and Tex. 

 July-Aug. 



9. Cuscuta rostrata Shuttlw. BEAKED DODDER. (I. F. f. 2964.) Stems 

 coarse, yellowish white; flowers larger than in any of our other species, loosely 



