Plate XVI. 



SUMMIT OF LEAF. 



53 



10 



General subject. Name each of the forms from fig. 1 to A To which of 

 these mny the character of the leaf-summit in fig. 10 be referred fig. 13 fig. 

 9? "What kind of appendage in fig. 11? Difference between figs. 4 and 5 1 

 and 87 and 88 and 3? What kind of leaf at fig. 14, and to what tribe of 

 plants does it belong fig. 12 fig. 15? When a leaf has a curved and attenu- 

 jited point, what is it called a sharp point ending in a kind of bristle with 

 a rounded notch a sharp notch a blunt end appearing as if cut off at th- 

 extremity ? Instances of each form. 



