INTRODUCTORY LESSONS, XXV 
fruit ripens (Fig. 65). A colored 
«alyx—i, e., not green—is said BY 
to be Petaloid. Flowers with- 2=&8 
out petals and those of the Lily ' 
Family usually have petaloid 
sepals (Figs. 66, 70, 71). 
The Corolla is Polypet- 
alous when the petals are free 
from each other (see Figs. 66, 
68, 69, 73). In Gamopetalous 
corollas there are all degrees of 
cohesion from the complete 
union (Fig. 67) of the Entire 
limb to the almost free petals 
of a Divided corolla (Fig. 58). 
Petals often grow upon the calyx 
(Fig.68). Corollas are Regular 
{Figs. 67, 69) or Irregular (Fig. 
66, and Fig. 58, p. 3. See also 
the figures on p. 11 and p. 88b). 
Common forms of regular co- 
rollas are Rotate(Fig. 58), Salver- 
form (Fig. 64), Funnel-form 
(Fig. 67), and Campanulate or Bell-shaped when the tube expands suddenly 
at the base to a width nearly equal to that of the summit and about equal 
