KEY TO THE FAMILIES 



xix 



Woody plants. 



Ovary 4-several-celled ; fruit a berry. 

 Ovary 2-celled ; fruit a capsule. 



EBENACEAE, 



BlGNONIACEAE, 175. 



2. 



Flowers uot in involucrate heads. 

 Stamens fewer than the corolla lobes. 

 Stamens as many as or more than the lobes 



of the corolla. 

 Herbaceous vines. 

 Herbs or woody plants. 

 Leaves alternate. 

 Leaves opposite or whorled. 

 Fruit dry. 

 Fruit fleshy. 



Flowers in involucrate heads. 

 Flowers all ligulate. 

 Flowers not all ligulate. 

 Stamens distinct. 

 Flowers greenish. 

 Flowers white. 

 Stamens united by their anthers. 



VALERIANACEAE, 181. 



CUCURBITACEAE, 181. 



CAMPANULACEAE, 182. 



RUBIACEAE, 178. 

 CAPEIFOLIACEAE, 179. 



ClCHORIACEAE, 183. 



AMBROSIACEAE, 186. 

 COMPOSITAE ( Kuhnia), 188. 

 COMPOSITAE, 188. 



