By Mr. George Lindley. 529 

 Class I. 



Contains those whose leaves are deeply and doubly ser- 

 rated, having no glands. Fig. 1. 



Class II. 



Those whose leaves are crenate or serrulate, having glo- 

 bose glands. Fig. 2. 



Class III. 



Those whose leaves are crenate or serrulate, having reni- 

 form glands. Fig. 3. 



vol. v. 



