, I 



(I 

 II 



Salix fragilis, 68. 

 " iucida, 57. 



" "igra, 54- 



" falcata, 56. 

 " sericea, 62. 

 Sambucus Canadensis, 146. 



♦• " var. Mexicana, 



144. 

 Sassafras Sassafras, 263. 

 Sorbus Americana, 140. 

 ancuparia, 141. 

 sambucifolia, 141. 

 Staphylea Bolanderi, 144. 

 Symphoricarpos Symphoricarpos, 262. 



TAXODIUM DISTICHUM, 99. 

 Thuja occidentalis, 103. 

 Tilia Americana, 153. 

 " Europaea, 156. 

 heterophylla, 156. 

 pubescens, 156. 

 Tsuga Canadensis, 226. 

 " Caroliniana, 227. 



Ulmus alata, 122. 

 " Americana, 120. 

 campestris, 124. 

 fulva, 122. 

 racemosa, 126. 

 suberosa, 126. 



i< 

 11 



<i 

 (i 

 <i 



i< 



Viburnum acerifolium, 285. 

 " alni folium, 83. 



" Lentago, 82. 



" Opulus, 83, 



prunifolium, 285. 



« 



