SHRUBS. 



B. USUALLY SEEN AS SHRUBS. 



1. Evergreen. 2. 

 Deciduous. 33. 



2. Spiny. 3. 



Unarmed or the leaves pointed or toothed. 4 

 Evergreen Shrubs Armed. ' 



3. Leaves simple. Pyracantha. 

 Leaves compound, of 3 leaflets. Triphasia. 



Evergreen Shrubs Unarmed. 



4. Leaves alternate, or in alternate clusters. 5. 

 Leaves opposite, or separated in 4 ranks. 24. 

 Leaves whorled, 3 at a node. 31. 



Leaves alternate. 



5. Leaves simple. 6. 



Leaves compound, pungently toothed. Mahonia. 



i 6. Stipule-scars encircling the- twig. Magnolia. 



Stipule-scars not encircling the twig. 7. 

 /. Leaves with minute resin-glands. 8. 

 Leaves not resinous-dotted. 9. 



8. Leaves toothed. Myrica. 

 Leaves ciliate. Andromeda. 



9. Leaves essentially entire. 10. 



Leaves evidently toothed or crenate. 21. 

 ic. Leaves small (scarcely 25 mm. long), n. 



Leaves finally distinctly larger. 12. 

 IT. Leaves flat: bark rather fleshy. Daphne. 



Leaves thick, glabrous : bark thin. Cliftonia. 



Leaves revolute, rather woolly beneath. Cotoneaster. 



12. Twigs slender. 13. 



Twigs stout : leaves crowded above. Rhododendron. 



13. Leaves rather thin, flat, ciliate. Rhododendron (Azalea). 

 Leaves firm, not ciliate. 14. 



