8 4 



SCIENCE PRIMERS. 



[xxi. 



(b) Dehiscent fruits of one carpel (pods). 



(5.) Pea (Fig. 61), Bean. Fruit superior, divid- 

 ing into 2 valves, with inner and outer line of de- 

 hiscence. Seeds many, without albumen, attached to 



FIG. 61. Fruit of pea splitting into two valves. 



the line of dehiscence which is nearest to the free 

 stamen (Fig. 47). 



(6.) Willow. Fruit superior, dividing into 2 

 valves. Seeds few, without albumen, basal, with long 

 hairs at their bases. 



(c) I ndehiscent fruits of several free carpels. 



Buttercup (Fig. 62).- Carpels many, dry (ache- 

 nes), seated on a dry elevated receptacle. Seeds 

 solitary in each achene, albuminous. 



FIG. 62. <7, fruit of buttercup, cut open showing the seed ; b, seed of the 

 same cut open showing the small embryo within the small albumen ; 

 both much enlarged. 



