Explanations, Sectional Diagram No. 4 



COMMON NAME 



1. Tulip tree. 



2. Nordmann's silver fir. 



3. European linden. 



4. European silver linden. 



5. Sycamore maple. 



6. Ash-leaved maple or box 



elder. 



7. Bhotan pine. 



8. Colorado blue spruce. 



9. Austrian pine. 



10. English elm. 



11. American chestnut. 



12. Large flowered syringa. 



13. Thunberg's barberry. 



14. Van Houtte's spiraea. 



15. Japan plum. 



16. Red maple. 



17. Pearl bush. 



18. Variegated Weigela. 



19. Mock orange or sweet 



syringa. 



20. American hornbeam. 



21. Lilac. 



22. Cherry birch. 



23. Red oak. 



24. Choke cherry. 



25. Flowering dogwood. 



26. Paper or canoe birch. 



27. Swiss stone pine. 



28. Common locust. 



29. Red-flowering dogwood. 



30. Camperdown elm. 



31. Silve'r maple. 



BOTANICAL NAME 



Liriodendron tulipifera. 

 Abies Nordmanniana. 

 Tilia Europ&a. 

 Tilia Europaa, var. ar- 



gentea. 



Acer pscudoplatanus. 

 Negundo accroides. 



Pinus excelsa. 



Picea pungens. 



Pinus Austriaca. 



Ulmus campestris. 



Costarica saliva, var. Amer- 

 icana. 



Philadelphus grandifiorus. 



Bcrberis Thunbergii. 



Spiraa Van Houttei. 



Prunus triflora. 



Acer rubrum. 



Exochorda grandiflora. 



Diervilla rosea, var. foliis 

 varicgatis. 



Philadelphus coronarius. 



Carpinus Caroliniana. 



Syringa vulgaris. 



Betula lenta. 



Quercus rubra. 



Prunus Virginiana. 



Cornus florida. 



Betula papyrifera. 



Pinus Cembra. 



Robinia pseudacacia. 



Cornus Horida, var. rubra. 



Ulmus Montana, var. Cam- 



perdoivnii pendula. 

 Acer dasycarpum. 



