SHRUBS 



B. USUALLY SEEN AS SHRUBS. 



1. Evergreen. 2. 

 Deciduous. 35. 



2. Spiny. 3. 



Unarmed unless the leaves are pointed or toothed. 4. 

 Evergreen Shrubs Armed. 



3. Leaves simple: some twigs pungent. p. 62. Pyracantha. 

 Leaves appearing simple, some pungent. p. 39. Berberis. 

 Leaves compound, of 3 leaflets. p. 77. Triphasia. 



Evergreen Shrubs Unarmed. 



4. Leaves alternate, or clustered on alternate spurs. 5. 

 Leaves opposite or else in 4 ranks. 26. 



Leaves usually or always 1 3 at a node. 33. 



Leaves alternate. 



5. Leaves simple. 6. 

 Leaves compound. 25. 



6. Stipule-scars encircling the twig. p. 42. Magnolia. 

 Stipule-scars if present not encircling the twig. 7. 



7. Leaves with minute resin-glands. 8. 

 Leaves not resinous-dotted. 9. 



8. Leaves more or less toothed. p. 20. Myrica. 

 Leaves only ciliate. p. 118. Andromeda. 



9. Leaves essentially entire. 10. 



Leaves evidently toothed or crenate. 23. 



10. Leaves scarcely 25 mm. long. 11. 

 Leaves distinctly larger. 13. 



11. Dwarf or spreading. 12. 



Taller and more bushy. p. 85. Cliftonia. 



12. Leaves flat: bark rather fleshy. p. 106. Daphne. 

 Leaves revolute: bark thin. p. 59. Cotoneaster. 



13. Twigs stout. p. 115. Rhododendron. 

 Twigs slender. 14. 



14. Leaves bristly-ciliate. (Azalea). p. 115. Rhododendron. 

 Leaves not ciliate. 15. 



