228 



FAMILIES OF FLOWERING PLANTS 



rich woods ; they have large pinnatifid or pinnate leaves and white or 

 blue, rather large flowers. The genus Phacelia embraces about half the 

 ^ecies in the family, the majority of them occurring in the western half 

 of the United States. They are hairy herbs, with blue, purple or white 

 flowers in terminal clusters. In some of the species the corolla is beauti- 

 fully fringed. Nemopliila, a genus mainly of Californian distribution, 

 contains species that are in common cultivation as garden annuals. 



Family Boraginaceae. Borage Family. This large group differs 

 from the preceding chiefly in the structure of the fmit. The ovary con- 

 sists of two distinct carpels, each of which are 2-celled, but they are 

 often lobed so as to appear 1-celled. The fruit consists, therefore, of 2 or 

 4 one-seeded nutlets. The plants are herbs, shrubs, or in some tropical 

 genera trees, comprised in 85 genera and 1500 species, verj^ widely dis- 

 tributed, though most abundant in temperate latitudes. In the tropics, 

 with the exception of a few kinds of heliotrope {Heliotropimn), the family 

 is represented only by trees and shrubs of the genera Cordia, Tourne- 



Fig. 197. Th.^'H.oyxnA.siongVLe {Cynoglossum officinale). Original 



reduced one-half. 



