246 CUSCUTACE^E. 



Fields, &c July, Aug. (J). Stem hairy, climbing to a great height. Leaves 

 2 6 inches long, on petioles of about the same length. Flowers large, blue, 

 purple or nearly white. Introduced. Common Morning Glory. 



6. C. lacunosus Spreng. : stem smooth, twisted ; leaves cordate acumi- 

 nate, angled at base ; peduncles short, 1 3-flowered ; calyx hairy ; corolla 

 tubular, short ; capsule hairy. Ipomcca lacunosa Linn. 



Penn. Muhl. S. to Flor. Aug., Sept. (!) Flowers white, with a purple 

 rim. Ragged Bindweed. 



1. C. nil Linn. : stem hairy, twining ; leaves cordate, 3-Iobed, the inter- 

 mediate lobe dilated at the base, the lateral ones shorter, acute ; peduncles 

 short, 2 3-flowered ; segments of the calyx ovate-lanceolate, hairy at the 

 base. Ipomcea nil Pursh. Pharbitis nil Choisy in D.C. 



Penn. Muhl. S. to Car. Aug. . Flowers 2 or 3, on peduncles shorter 

 than the petioles. Corolla white at base, blue near the border. 



Morning Glory. 



ORDER LXXXVI. CUSCUTACE^E. DODDERS. 



Calyx 4 5 -parted, persistent, with an imbricate aestivation. 

 Corolla cut round at the base ; the limb 4 5-cleft, with alter 

 nating scales. Stamens as many as the segments of the corolla. 

 Ovary 2-celled ; styles 2, or none ; stigmas 2. Fruit capsular 

 or baccate, 2-celled ; cells 1 2-seeded. Seeds with a fleshy 

 albumen and a spiral acotyledonous embryo. Leafless climb- 

 ing colorless parasites, with the flowers in dense clusters. 



CUSCUTA. Linn.^-Dodder. 



(Etymology uncertain.) 



Calyx 5- rarely 4-parted. Corolla globose-urceolate, 4 5- 

 cleft. Stamens 4 5. Filaments often with scales at the base. 

 Styles 2. Stigmas filiform or capitate. Capsule 2-celled, open- 

 ing all round transversely. 



1. C. EpUinum Weih. : heads of about 5 sessile flowers; calyx 5-parted, 

 the lobes obtuse ; corolla globose cylindric, about as long as the calyx ; 

 styles erect, at length divergent. (D. C.) C. Europcea. Beck Dot. 1st Ed. 



Parasitic on flax. Schenectady, N. Y. Mass. Dewey. Chester county, Penn. 

 Darlingt. July. (I). Stem filiform, long and climbing, orange-colored, leafless. 

 Flowers in small dense heads, pale-yellow or rose-color. Introduced? Dr. 

 Darlington's C. Europcea,' which seems to be identical with the New York 

 plant, is referred to this species by the author above quoted. Flax Dodder. 



2. C. Gronovii Willd. : stem branched ; flowers pedunculate or more 

 lax, generally 5-parted; corolla deeply campanulate, open, pellucid-punc- 

 tate, longer than the roundish obtuse calyx-segments ; scales convergent, 

 fimbriate. C. Americana Linn. 



Low grounds. N. Y. to Ala. W. to Ohio. July Sept. (T) Stem filiform, 

 orange-colored, twining around other plants. Flowers in small cymes or much 

 crowded, yellowish-white, marked with little roundish glands. 



Common Dodder. 



