134 



THE SEED. 



[LESSON 21. 



of the small cone are few, and not very unlike the leaves (Fig. 2 Go). 

 In Cypress they are very thick at the top and narrow at the base, so 

 as to make a peculiar sort of closed cone. In Juniper and Red Ce- 

 dar, the few scales of the very small cone become fleshy, and ripen 

 into a fruit which might be taken for a berry. 



LESSON XXL 



THE SEED. 



366. THE ovules (323), when they have an embryo (or unde- 

 veloped plantlet, 16) formed in them, become seeds. 



367. The Seed, like the ovule from which it originates, consists 

 of its coats, or integuments, and a kernel. 



368. The Seed-eoatS are commonly two (324), the outer and the 



inner. Fig. 315 shows the two, in a seed cut through 

 lengthwise. The outer coat is often hard or crustaceous, 

 whence it is called the Testa, or shell of the seed ; the 

 inner is thin and delicate. 



369. The shape and the markings, so various in dif- 

 ferent seeds, depend mostly on the outer coat. Sometimes it fits 



FIG. 314. Cone of Pitch-Pine (Finns rigida). 



FIG. 315. Seed of Basswood cut through lengthwise : a, the hilum or scar ; 4, the outer 

 coat ; c, the inner ; d, the albumen ; e. the embryo. 



