296 OKGANOGRAPKY. 



Fig. 649. Fig. 650. Fig. 651. 



Fig. 649. Fraitot Lychnis 



Fig. 650. Fruit of Dianihus. 

 Fig. 651. Fruit of Mig- 

 nonette {Reseda). 



able. At other times the separation of the fruit into valves 

 is more or less complete, so that the nature of the dehiscence is 

 at once evident. We now pass to consider the various modi- 

 fications of the complete forms of valvular dehiscence. 



In fruits which are formed of but one carpel or ovary, the 

 dehiscence may take place by the ventral suture only, as in the 

 Hellebore, Columbine {fig. 652), and Aconite {fig. 684) ; or by 

 the dorsal suture only, as in some Magnolias {fig. 653) ; or by 

 both dorsal and ventral sutures, as in the Pea {fig. 654), Bean, 



Fig. 652. 



Fig. 653. 



Fig. 654. 



Fig. 6^2. Follicle of Columbine (AgJM'feym), dehiscing t)y ventral suture. 



Fig, 653. Follicles of Magnolia glanca, dehiscing by tlieir dorsal 



sutures. The seeds are suspended from the fruits by long stalks. 



Fig. 654. Legume of the Pea which has opened by both dorsal and ven- 

 tral sutures ; hence it is two-valved. c. Calyx, cp. Epicarp. p?. Pla- 

 centa, ov. Seeds attached to the placenta by a funiculus or stalk,/. 

 671. Endocarp. 



