i3 Convolvulus ( Convolvulacece ) . [No. 18 



Leaves, simple, alternate, heart-shaped or lobed. 



Fruit, globular, separating into two to four pieces ; cells, 

 two to four. Seeds, four to six, or, by absorption of 

 the ovules, fewer. 



Twining or prostrate herbaceous vines. 



Fig. 63. Morning-Glory. \_I.purpurea, Lam.] 



Flowers, two inches in length, funnel form, of various 

 colors from purple to white. Corolla, twisted in the 

 bud. Calyx, hairy below. Sepals, long, narrow, 

 tapering. Stamens and style, not exserted. Stigma, 

 three-lobed. Seed-case, three-celled. Cluster-stems, 

 long, with two to five blossoms. 



Leaves, broad, egg-shape to rounded, with the base heart- 

 shape and the apex pointed. Leaf-stem, hairy. 



Fruit, three-celled. 



Found, escaped from gardens, and very common in culti- 

 vation. 



A rapid-growing, herbaceous vine, rough with down- 

 ward-pointing hairs, climbing by twisting. It is one 

 of the oldest and commonest and best liked of the 

 familiar garden flowers. It is a native of tropical 

 America. 



Fig. 64. Small Morning-Glory. [/. hedera 



acea, 



This species differs from the preceding chiefly in the 

 following items : 



