INDEX 



Abies, 72 



amabilis, 83 



balsamea, 75 



bracteata, 87 



concolor, 79 



concolor lowiana, 79 



fraseri, 75 



grandis, 81 



Key to species, 73 



lasiocarpa, 77 



lasiocarpa arizonica, 77 



magnifica, 85 



magnifica shastensis, 85 



nobilis, 87 



procera, 87 



venusta, 87 

 Acacia amentacea, 269 



angustissima, 269 



catclaw, 269 



constricta paucispina, 269 



emoryana, 269 



farnesiana, 269 



greggii, 269 



greenbarked, 279 



millefolia, 269 



tortuosa, 269 



wrightii, 269 

 Acer, 294 



barbatum, 295 



circinatum, 301 



glabrum, 301 



glabrum douglasii, 301 



grandidentatum, 307 



Key to species, 295 



leucoderme, 295 



macrophyllum, 305 



negundo, 307 



negundo arizonicum, 307 



negundo californicum, 307 



negundo interius, 307 



negundo texanum, 307 



negundo violaceum, 307 



nigrum, 297 



pensylvanicum, 303 



platanoides, 295 



pseudoplatanus, 295 



rubrum, 299 



saccharinum, 299 



saccharophorum, 297. 



saccharum, 297 



saccharum sinuosum, 297 



spicatum, 303 

 Aesculus, 308 



arguta, 309 



californica, 309 



X carnea, 308 



glabra, 31 1 



hippoc£istanum, 308 



Key to species, 309 



octandra, 31 1 



pavia, 309 



sylvatica, 309 

 Ailanthus altissima, 287 



glandulosa, 287 

 Alaska cedar, 105 

 Albizia julibrissin, 271 

 Alder, 156 



Arizona, 157 



European, 157 



Hazel, 157 



Mountain, 161 



Red, 159 



Seaside, 157 



Sitka, 161 



Speckled, 157 



Thinleaf, 161 



White, 157 

 Allthorn, 321 

 Almond, 259 



flowering, 256 

 Alnus, 156 



glutinosa, 157 



Key to species, 157 



maritima, 157 



oblongifolia, 157 



rhombifolia, 157 



rubra, 159 



rugosa, 161 



serrulata, 157 



sinuata, 161 



[383] 



