66 THE FIRST BOOK OF BOTANY. 



EXERCISE XXIY. 

 Arrangement of Leaves on the Stem. 



FIG. 123. FIG. 124. 



Alternate Leaves. 



Opposite Leaves. 



ALTEKNATE LEAVES. Leaves are alternate on the 

 stem when there is but one at each node, as in Fig. 

 123. 



couraged to record such facts upon the schedule. Very long or 

 very short internodes, and other noticeable peculiarities, should 



