Dicotyledones. 93 



with an elongated tube, the limb 5 -angled, lobed, or entire. Stamens 5, 

 alternate with the lobes of the corolla, inserted low down in the tube. 

 Ovary superior, 2-3-celled, with 2 erect ovules in each cavity ; or some- 

 times false partitions seem to double the number of cavities, with 

 apparently I ovule in each cell. Fruit, a globular 2-4-valved capsule. 



I. IPOMOEA. Morning Glory. 



(Ips, a worm; homoios, like.) 



Mostly twining or trailing annuals or perennials, with showy, axillary, 

 solitary, or cymose flowers. Sepals 5, sometimes unequal. Corolla 

 salver-shaped to funnel-form, or sometimes nearly campanulate, ^-angled 

 or lobed. Style simple, terminated by i-3-capitate or globose stigmas. 

 Stamens and style often included. Capsule globular, 4-6-seeded and 

 2-4-valved. 



1. Ipomoea pandurata, Meyer. (L., pandura, a sort of fiddle.) WILD POTATO 

 VINE or MAN-OF-THE-EARTH. Nearly smooth perennial, trailing, barely climbing, 

 from a massive root. Leaves broadly cordate, or sometimes angular, 3-lobed or 

 fiddle-shaped. Peduncles i-5-flowered, elongating in fruit. Sepals oblong, obtuse, 

 or acute. Corolla funnel-form, 2 to 3 inches long, white with purple stripes in the 

 throat; limb 5-lobed. In dry soil. 



2. Ipomoea leptophylla, Torr. (Gr., leptos, thin ; phyllon, leaf.) BUSH MORN- 

 ING GLORY. Smooth perennial, with erect, ascending, or reclining stem, 2 to 4 

 feet long from an enormous root. Much branched. Leaves 2 to 5 inches long, 

 linear, acute at the apex, on short petioles. Peduncles i-4-flowered, nearly erect, 

 shorter than the leaves. Sepals broadly ovate. Corolla about 3 inches long, funnel- 

 form, scarcely-lobed, pink or purple. Capsule ovoid, 2-celled, nearly i inch long. 

 In dry soil of western plains. 



H. CONVOLVULUS. Bindweed. 



(L., convolvere, to twine.) 



Mostly perennials, with twining, trailing, or erect stems from slender 

 rootstocks. Leaves mostly cordate or sagittate. Calyx sometimes with 

 a pair of bracts at its base. Corolla funnel-form to campanulate, soli- 

 tary or clustered in the axils of the leaves, white, purple, or pink. Sta- 

 mens included in the tube of the corolla. Style slender ; stigmas "2, 

 linear, awl-shaped, or ovoid. Ovary i -2-celled and 4-ovuled. 



i. Convolvulus sepium, L. (Gr., sepion, bone of cuttle-fish.) HEDGE or GREAT 

 BINDWEED. Stems 3 to 10 feet long, trailing or twining. Leaves triangular- 

 hastate on slender petioles. Flowers funnel-form on slender peduncles, white or 

 tinged with pink. Two large bracts at the base of the calyx. Stigmas oblong. In 

 fields and waste places, preferring moist soil. 



