PLATE V 

29. Cut-leaved Birch. go. (1/3) 33- Sweet Gum. 87. (!/3) 
30. Sassafras. 12. (+/;) 34- Common Aspen. 24. (2/5) 
31. American Elm. 36. (?/s) 35. Large-toothed Aspen. 25. (1/3) 
32. Slippery Elm. 37. (*/4) 36. Downy-leaved Poplar. 26. (+/,) 
203 
