160 BOTANY FOR YOUNG PEOPLE. 



Penduncles thickening upwards. Flowers nod 

 ding 1 . [Common Sunflower.] 



H. Tuberosus. Leaves three nerved, sca- 

 brous ; lower ones ovate, upper ones ovate acu- 

 minate. Petioles ciliate. Root tuberous. [Je- 

 rusalem Artichoke.] 



IRIS. Triandria Monogynia. Corol six pe- 

 talled, unequal. Petals alternate jointed and 

 spreading. Stigmas three, petal form, cowled, 

 two lipped. 



I. Plicata. Bearded. Scape mostly one flow- 

 ered, and as long as the leaves. Petals, undu- 

 late, plicate, erect ones broadest. [Garden Iris.] 



I. Germanica. Corolla bearded. Stem with 

 leaves, many flowered. Inferior flowers pe- 

 d uncled. [Fleur de Lis.] 



IPOMEA. Pentandria Monogynia. Calyx 

 five cleft, naked. Coral funnel form with five 

 folds. Stigma globular, and covered with fleshy 

 points. Capsule two or three celled, many 

 seeded. 



I. Coccinea. Pubescent. Leaves cordate, 

 acuminate. Peduncles five, flowered. Corolla 

 tubular. [Scarlet Morning Glory.] 



