BOTANY. 



you can easily do this. Look carefully at the hole it leaves. 

 Is not its surface smooth ? Do you see any spot where 

 the lump seems to have been grown to the other part, and 

 to have broken away when you took it out ? 



Compare the parts you have got with Figs. 365, 366. 



EM'BRYO. The young plant contained in a seed. 



ALBU'MEN, EN'DOSPERM. The material in which the 

 embryo is imbedded. 



What names are given to the two parts of the body of 

 a seed of Indian corn ? 



Which is the embryo in your specimen ? Which is the 

 albumen ? 



Now examine the kernel of a pea or bean. Can you 

 separate this into two parts without breaking it some- 

 where ? 



Compare it with the parts of Indian corn. 



What name is given to the entire kernel ? What part, 

 found in the Indian corn, is missing here ? 



FIG. 367. 



FIG. 368. 



FIG. 369. 



FIG. 370. 



Look at the body of a seed of four-o'clock 

 and see how many and what parts it has. 

 Look also at the body of a pumpkin-seed. 



Examine the kernel of each of the kinds of 

 seed you have planted, and observe which consist of em- 

 bryo alone, and which are part embryo and part albumen. 



ALBUMINOUS SEEDS are those which have albumen. 



EXALBUMINOUS SEEDS are those in which the body 

 consists of the embryo alone. 



The relations of embryo to albumen in various seeds 



