240 



LEAVES 



FIG. 222. End view of a twig, showing the leaves alternately arranged 

 and so located in reference to each other that all receive light. 



.-A. 



FIG. 223. A Wild Sunflower 

 with opposite arrangement of 

 leaves. After Bailey. 



FIG. 224. Sweethearts (Galium 

 Aparine), one of the weeds having 

 leaves in whorls. After Beal. 

 Mich. Agr. Exp. Sta. 



