Plate 34 



MAPLES— OAKS. 

 MAPLE FAMILY 



1. Acer glabrum: Mountain Maple 



2. Acer negundo : Boxelder 



SUMAC FAMILY 



3. Rhus Rydbergii : Poison Ivy 



4. Rhus glabra : Sumac 



5. Rhus trilobata 



BIRCH FAMILY 



6. Betula glandulosa : Alpine Birch 



7. Betula fontinalis : Birch 



8. Alnus tenuifolia : Alder 



9. Corylus rostrata : Hazelnut' 



BEECH FAMILY 



10. Quercus Gunnisoni : Oak 



11. Quercus Gambelii 



12. Quercus undulata 



