54 



BUDS AND STIPULES 



with the petiole. This, however, is not, I think, strictly 

 correct. The true petiole is the leaf-stalk above the 

 stipules. The winged part below is really a develop- 

 ment of the leaf-base. 



Adnate stipules, as these are called, arising from a 

 similar development of the leaf-base, occur in many 



FIG. 88. SECTION ACROSS THE Bur> or A ROSE. 



A, growing-point ; L l , youngest leaf ; L 2 , three folded lobes of second leaf ; 



St 2 , stipules of second leaf ; Sc'-Sc% scales. 



other cases, as, for instance, in some Lupins, Clovers, 

 Potentilla, &c. That winged petioles are not always 

 stipular is, however, shown by the case of Lathyrus 

 for instance, L. silvestris. 



