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 
species 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. Memophila, 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 fruit. The ovary con- 
sists of two distinct carpels, each of which are 2-celled; but they are 
often lobed so as to appear I-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, very widely dis- 
tributed, though most abundant in temperate latitudes. In the tropics, 
with the exception of a few kinds of heliotrope (Heliotropium), the family 
is represented only by trees and shrubs of the genera Cordia, Tourne- 
Fig. 197. The Houndstongue (Cynoglossum officinale). Original : 
reduced one-half. 
