THE CORN SEED LlSd 



J7!» 



Figure 271. — Maple Seedlings. 

 Compare with Figure 274. 



factures sugars and starches (a process technically known as 



photosynthesis), and proteins; (4; it digests some of tin- 

 food that it has made ; (5) it assimilates some of the di- 

 gested food ; (6) by cir- 

 culation it carries some 

 of the starch and protein 

 to other parts f the 

 plant and brings fresh 

 raw materials into the 

 leaf; (7) it gives off 

 waste material in the 

 form of oxygen. 



211. The Corn Seedling-. 

 — When the corn seed- 

 ling begins to grow, 

 its tightly rolled leaves 

 which form the sharp plumule push up through the soil. 

 Next the root grows. The primary root, instead of re- 

 maining the largest, as in the case of the bean, sends off a 



number of branches 

 about the same size a-> 

 itself. Like those of 

 the bean, these branches 

 have rootlets and root 

 hairs. There is little 

 difference between the 

 roots of corn and beans 

 so far as their structure 

 goes, but corn roots have 

 neither tubercles imr 



nitrogen-gathering bac- 

 teria. The first Leaves 



Figure 272.- M.crophotograph of of ( ' ,,rn :m ' likr tl "' lilt, ' r 



Corn Stem. ones, except in size, be- 



