128 THE PEACH AND NECTARINE. 



deeply and doubly serrated (or cut like saw-teeth,) 

 and having no glands on the serratures. Fig. 28. 



Fig. 28. Fig. 29. Fig. 30. 



Class II t contains those whose leaves are crenate 

 or serrulate (or with smaller and more rounded 

 teeth,) and having globose glands. Fig. 29. 



Class III, includes all those whose leaves are 

 crenate or serrulate, having reniform (or kidney- 

 shaped) glands. Fig. 30. 



"The form of the glands," observes Lindley, 

 "as well as their position, is perfectly distinct; 

 they are fully developed in the month of May, and 

 they continue to the last, permanent in their cha- 

 racter, and are not affected by cultivation. The 

 globose glands are situated, one, two, or more, on the 

 foot-stalks, and one, two, or more on the tips 

 or points of the serratures of the leaves. The 

 reniform glands grow also on the footstalks of the 

 leaves, but those on the leaves are placed within 



