Dicotyledones. 93 



with an elongated tube, the Umb 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. 



(^J, a worm; At»ni>ws,\i)ie.) 



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

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

 salver-shaped to flmnel-form, or sometimes nearly campanulate, 5-angled 

 or lobed. Style simple, terminated by 1-3-capitate or globose stigmas. 

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

 2-4-valved. 



1. Ipomceapandurata, Meyer. (L.,/a>;<i'Kri!, 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-flowert;d, elongating in fruit. Sepals oblong, obtuse, 

 or acrfte. ' Corolla funnel-form, 2 to 3 inches long, white with puiple stripes in the 

 throat; limb s-lobed. In dry soil. 



2. Ipomcea leptophylla, Torr. (Gr.,/«/toj, thin; ;«/y//ra, 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, 

 hnear, 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. 



II. 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 1-2-celled and 4-ovuled. 



i. Convolvulus sepium, L. (Gr., «/io«, 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. 



