ON THE NATURE OF STIPULES 209 



of stipule. In the Plane (fig. 320) the relations of the 

 ocrea to the stem and the leaf- stalk have been well de- 



FIG. 322. 



7) 



E . 

 FIG. 323. PIG< 324 



PLANE (Platanus}. 



scribed by Colomb, from whose account the following 

 figures are taken. Fig. 321 represents a section of the 



