752 FLORA. 



plaited. Stamens included. Ovary entire, 2-4-celled, 4-6 ovuled; style filiform, 

 included; stigmas 1 or 2, capitate or globose. Capsule usually septifragally 2-4- 

 valved, 2 -4- seeded. [Greek, worm-like.] About 350 species, of wide distribu- 

 tion. Besides the following, some 25 others occur in southern and western N. Am. 



Ovary 2-celled (rarely 4-ceiled); stigma entire or 2-lobed. 

 Leaves cordate; stems trailing or twining. 



Perennial from an enormous root ; corolla 5-8 cm. long. 1. /. pandurata. 



Annual; roots fibrous; corolla 8-20 mm. long, white. 2. /. lacunosa. 



Annual; corolla 2.5-4 cm. l° n & pink or purple. 3. /. Carolina. 



Leaves linear; stems ascending or erect; perennial. 4. /. leptophylla. 

 Ovary 3-celled ; stigmas 3; leaves cordate ; annuals. 



Leaves entire ; corolla 5-7 cm. long. 5. /. purpurea. 



Leaves deeply 3-lobed, corolla 2.5-4 cm - long* 6. /, hederacea. 



i. Ipomoea pandurata (L.) Meyer. Wild Potato Vine. (I. F. f. 2945.) 

 Glabrous or puberulent; stems 0.5-4 m. long. Leaves acuminate, 5-15 cm. 

 long, slender- petioled, entire, sometimes contracted in the middle, or some of the 

 later ones rarely dentate or 3-lobed; peduncles 1-5 -flowered, much elongated in 

 fruit; sepals oblong, 12-16 mm. long, glabrous; corolla funnelform, white, or with 

 pinkish purple stripes in the throat, the limb 5-lobed; capsule ovoid, 2-valved, 

 2-4-seeded, the seeds woolly on the margins and pubescent on the sides. In dry 

 soil, Ont. to Conn., Fla., Mich., Kans. and Tex. May-Sept. 



2. Ipomoea lacunosa L. Small-flowered White Morning-glory. (I. 

 F. f. 2946.) Pubescent or hirsute, rarely glabrous; stem 0.5-3.5 m. long. Leaves 

 slender-petioled, acute or acuminate, entire, angled or 3-lobed, 5-10 cm. long, the 

 lobes acute; peduncles 1-3-flowered, shorter than the leaves; sepals oblong or 

 lanceolate, acute or acuminate, pubescent or ciliate, about 1 cm. long; corolla 

 funnelform, white, or the limb purple; stigma capitate; capsule globose, 2-valved. 

 In moist soil, Penn. to S. Car., 111., Kans. and Tex. July-Sept. 



3. Ipomoea Carolina (L.) Pursh. Small-flowered Pink Morning- 

 glory. (I. F. f. 2947.) Similar in habit to the preceding species, but the leaves 

 usually more lobed; peduncles often longer than the leaves, 1-3-flowered; sepals 

 lanceolate or oblong-lanceolate, acuminate, pubescent or ciliate; capsule glabrous 

 or pubescent. Kans. to Tex., east to S. Car. and Fla. [/. commutata R. & S.J 



4. Ipomoea leptophylla Tori-. Bush Morning-glory. (I. F. f. 2948.) 

 Perennial from .in enormous root, glabrous; stems rather stout, 6-12 dm. long, 

 much branched. Leaves narrowly linear, entire, acute, 5-8 cm. long, 2-6 mm. 

 wide: petioles very short; peduncles stout, nearly erect, usually shorter than the 

 leaves, 1-4-flowered; sepals broadly ovate, obtuse, 6-8 mm. long, or the outer shorter; 

 corolla funnelform, purple or pink, about 8 cm. long, the limb scarcely lobed; cap- 

 sule ovoid, acute, 1.5-2.5 cm. long, 2-celled; seeds pubescent. In dry soil, S. Dak. 

 to Wyo., Tex. and N. Mex. May-July. 



c. Ipomoea purpurea (L.) Roth. Morning-glory. (I. F. f. 2949.) Stem 

 retrorscly hairy, I-3.5 m. long. Leaves acute or acuminate, 5-10 cm. wide, slen- 

 der-petioled; peduncles 1-5-flowered; sepals lanceolate or oblong, acute, pubescent, 

 or hirsute near the base, 12-16 mm. long; corolla funnelform, blue, purple, pink. 

 variegated or white; ovary 3-celled (rarely 2-celled); stigmas 3 (rarely 2); capsule 

 depressed-globose, about I cm. in diameter, shorter than the sepals. In waste 

 places, commonly escaped from gardens, N. S. to Fla.. Ont., Neb. and Tex. 

 Adventive or nat. from trop. Am. July-Oct. 



6. Ipomoea hederacea Jacq. Ivy-leaved Morning-glory. (I. F. f. 

 2950.) Stem 6 15 dm. long, slender, retrorselv hairy. Leaves ovate-orbicular in 

 outline, long-pet i< Jed, deeply 3-lobed, 5— 13 cm. long, the lobes ovate, acuminate; 

 peduncles 1-3-flowered, much shorter than the petioles; flowers opening in early 

 morning, soon closing; sepals lanceolate with long linear often recurved tips. 

 densely hirsute below, sparingly so above, 1.5-2.5 cm. long; corolla funnelform, 

 the tube usually nearly white, the limb light blue or purple; capsule depressed- 

 globose, 3 valvrd. about as long as the lanceolate portion of the sepals. In fields 

 and waste place . 1. 1. to Fla., Penn., S. Dak., Neb. and Mex. Nat. or adventive 

 from trop. Am. July-Oct. 



