ON STIPULES 



27 



As regards the duration of life, some stipules, such 

 as those of the Beech, Oak, Elm, &c., which only serve 

 to protect the young leaves, drop off as soon as the 



FIG. 32. FIVE LEAVES OF THE COMMON THOKN. Nat. size. 

 St, stipules, absent in the first figure. 



latter expand. The ground under Beeches in spring is 

 almost brown with fallen stipules. 



