346 CONVOLVULACE^. (convolvulus family.) 



8. STTLISMA, Eaf. 



Sepals 5. Corolla bell-shaped, hairy. Stamens included. Styles 2, distinct 

 or united below, entire : stigmas peltate. Ovary 2-celled, 4-ovuled. Capsule 

 I -4-seeded. — Perennial prostrate pubescent herbs, with entire leaves, and small 

 flowers on axillary peduncles which are longer than the leaves. 



1. S. tumistrata. Hairy and roughish ; leaves petioled, oblong, slightly 

 cordate, obtuse or emarginate at the apex, mucronate ; peduncles filiform, 1-7- 

 flowered ; sepals ovate, acute, smooth, fringed on the margins ; capsule smooth, 

 nodding; bracts minute; corolla white; filaments hairy; stylos united below. — 

 Varies with linear or lanceolate, often acute, nearly sessile leaves, shorter and 

 uniformly 1 -flowered peduncles, and more pubescent sepals. (Convolvulus hu- 

 mistratus, Walt. C. tenellus. Ell. ) — Dry sandy pine barrens, Florida to South 

 Carolina, and westward. July -Sept. — Stems 2° -3° long. Leaves I'- 3' 

 long. Corolla 10" long. Capsule ovate, commonly 1-seeded, crowned with a 

 tuft of hairs when young. 



2. S. aguatica. Silky-pubescent and somewhat hoary ; leaves linear-ob- 

 long, obtuse, mucronate, truncate or slightly cordate at the base, short-petioled ; 

 peduncles 1 - 7 (mostly 3-)-flowered ; sepals ovate-lanceolate, acuminate, very 

 silky; capsule erect, pubescent; bracts subulate, as long as the pedicels; corolla 

 purple; filaments smooth; styles distinct. (Convolvulus aquaticus, Wult.) — 

 Margins of ponds, Florida to North Carolina, and westward. July - Sept. — 

 Stems 2°-3° long. Leaves ^'- 1' long. Corolla 5" long. 



3. S. Fickeriugii, Gray. Soft-pubescent or villous ; leaves linear, ob- 

 tuse, narrowed at the nearly sessile base ; peduncles 1 - 3-flowered ; bracts linear, 

 as long as the flower ; sepals ovate-lanceolate, very hairy, longer than the pedi- 

 cel ; corolla small, white ; styles united nearly to the apex ; stamens slightly 

 exserted. — Sandy pine barrens. North Carolina, and northward. July - Sept. 

 — Stems 2° -3° long. Leaves 12"- 15" long. Corolla 5" long. 



9. DICHONDBA, Forst. 



Calyx 5-parted, with the lobes obovate. Corolla somewhat wheel-shaped, 

 .5-parted, shorter than the calyx. Stamens included. Ovaries 2, distinct, 

 2-ovnled. Styles 2 : stigmas capitate. Utricles 2, one-seeded. — Low pubescent 

 creeping herbs, with broadly cordate petioled leaves, and solitary bractless flow- 

 ers on axillary peduncles. 



1. D. repeus, Forst., var. Caroliueusis, Chois. — Low grounds, Florida 

 to North Carolina, and westward. March -Oct. !(. — Stems filiform, 6'- 12' 

 long. Leaves J'-lJ' in diameter, on petioles 1' -4' long. Peduncles shorter 

 than the petioles. Calyx silky. Corolla minute, greenish white. 



10. CUSCUTA, Toum. Dodder. 



Calyx 4 - 5-cleft, or 4 - 5-sepalous. Corolla globular-um-shaped, bell-shaped, 

 or somewhat tubular, 4 - 5-cleft. Stamens 4-5, with fimbriate mostly confluent 

 scales at the base. Ovary 2-celled, 4-ovuled. Styles 2 ; stigmas capitate (in 



