CH. II] 



General Biology 



19 



Fig. 23 



Kg. 22. Germinating Maize, natural size. A. Early stage, after three day 

 growth. B. The same after five days growth. C, coleorhiza. E, primary 

 root. In B the first adventitious roots are shown arising from the primary 

 node. 



IV. 23. Young plant of Zea metis. J nat. size. s. seminal root; ad. adventitious 

 roots arising from the lowest node ; at. rhizomatous stem ; sh. first sheathing 

 leaf; gr. shrivelled grain. 



2—2 



