t 
OL 
PST 
ET 
[2. 
nS. 
SHRUBS. 19 
BASU alLy shin As SHRUBS, 
. Evergreen. 2. 
Deciduous. 33. 
Spiny. 3. 
Unarmed or the leaves pointed or toothed. 4 
Evergreen Shrubs—Armed., 
Leaves simple. Pyracantha. 
Leaves compound, of 3 leaflets. Triphasia. 
Evergreen Shrubs—Unarmed. 
Leaves alternate or in alternate clusters. 5. 
Leaves opposite, or separated in 4 ranks. 24. 
Leaves whorled, 3 at a node. 31. 
Leaves alternate. 
. Leaves simple. 6. 
Leaves compound, pungently toothed. Mahonia. 
Stipule-scars encircling the twig. Magnolia. 
Stipule-scars not encircling the twig. 7. 
. Leaves with minute resin-glands. 8. 
Leaves not resinous-dotted. 9. 
. Lzaves toothed. Myrica. 
Leaves ciliate. Andromeda. 
. Leaves essentially entire. Io. 
Leaves evidently toothed or,crenate. 21. 
. Leaves small (scarcely 25 mm. long). It. 
Leaves finally distinctly larger. 12. 
Leaves flat: bark rather fleshy. Daphne. 
Leaves thick, glabrous: bark thin. Cliftonia. 
Leaves revolute, rather woolly beneath. Cotoneaster. 
Twigs slender. 13. 
Twigs stout: leaves crowded above. Rhododendron. 
Leaves rather thin, flat, ciliate. Rhododendron (Azalea). 
Leaves firm, not ciliate. 14. 
