INTRODUCTORY LKSSONS. 



XXV 



fruit ripens (Fig. G5). A colored 

 calyx — i. e., nut green — is said 

 to be Petaloid. Flowers with- 

 out petals and those of the Lily 

 Family usually have j^^taloid 

 sepals (Figs. GO, 70, 71). 



The Corolla is Polypei- 

 alous when the petals are free 

 from each other (see Figs. 60, 

 G8, G9, 73). In Gamopetalous 

 corollas there are all degrees of 

 cohesion from the complete 

 uuiou (Fig. G7) of the Entire 

 limb to the almost free petals 

 of a Divided corolla (Fig. 58). 

 Petals often grow upon the calyx 

 (Fig. G8). Corollas are Rerjular 

 (Figs. G7, G9) or Irregular (Fig. 

 GG, and Fig. 58, p. 3. See also 

 the figures on p. 11 and p. 88b). 

 Common forms of regular co- 

 rollas are riO(cd('(Fig. 58), Scdver- 

 Jorm (Fig. Gi), Funnel-form 



C9 



(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 



