356 



COLLEGE BOTANY 



oil which is used for many purposes. It is an American plant 

 and probably came from Peru or east and central Brazil. 



This family also includes the following important economic 

 plants : the indigo plant (Indigofera- tinctoria and other species), 

 the milk vetch (Astragalus gummifer} from which gum traga- 



FIG. 197. Clover. 



canth is obtained, the lentils (Lens esculenta), and the liquorice 

 ( Glycyrrhiza glabra) . 



This family also includes many ornamentals, such as the 

 sweet pea, lupins, wistaria and red-bud; several trees, such as 

 the locust (Robinia pseudacacia) , the honey locust or thorn tree 

 (Gleditsia triacanthos) and the Kentucky coffee tree (Gymno- 

 cladus canadensis} ; and many weeds. 



