248 FAMILIES OF FLOWERING PLANTS. 
) OS 
Fic. 216, The balsam-apple (Momordica charantia). 
One-half natural size. Original. 
weed of old fields, and is remarkable for 
producing, like the violets, cleistogamous 
flowers, which are fertilized in the bud and 
never open. 
Another division of the family is repre- 
sented by Lobelia, of which there are 225 
species. In this group the flowers are ir- 
regular, being 2-lipped, with the lips vari- 
ously cleft. The anthers are united into 
a tube or ring around the style. There 
are many tropical allies of Lobelia, but the 
greatest number occur in the Hawaiian 
islands, and many are endemic there: Our 
native Lobelias are superior in beauty to 
those in cultivation; important among 
these are the cardinal-flower and the great 
blue lobelia (Fig. 218). 
Family Cichoriaceae. Chicory Family. 
Contains about 65 genera and 1400 species, 
of wide distribution. They are almost all 
herbs, with milky juice and alternate or 
basal leaves. The flowers are borne in 
heads subtended by an involucre as above 
described. The flowers are all similar and 
perfect, the calyx-tube completely adher- 
ent to the ovary, the spreading upper por- 
tion (known as the pappus), consisting of 
scales or bristles or sometimes wanting. 
The corolla is gamopetalous, its limb ex- 
Fic. 217. A western species of bell- 
flower (Campanula plantflora). One- 
half natural size. Original. 
