GUIDE II. 



LEAVES. 



A. Leaves simple.* 



I. Alternate. 



(a) Edge entire. Go to i. 

 {a) " toothed. Go to 2. 

 (a) " lobed. 



(b) Lobes entire. Go to 3. 



{b) " toothed. Go to 4. 



II. Opposite. 



(<i) Edge entire. Go to 5. 

 (a) " toothed. Go to 6. 

 (a) " lobed. 



(b) Lobes entire. Go to 7. 



(b) " toothed. Go to 8. 



III. Indeterminate (because of smallness or closeness). Go to 9. 



B. Leaves compound. 

 (a) Alternate. 



{b) Edge of leaflets entire. Go to 10. 

 {b) " " toothed or lobed. Go to n. 



{a) Opposite. 



{b) Edge of leaflets entire. Go to 12. 



(b) " " toothed or lobed. Go to 13. 



C. Leaves lacking or represented by minute and remote scales. Go 



to 14. 



*The leaflets of a compound leaf can be distinguished from a simple leaf by the 

 absence of leaf-buds from the base of their stems. 



