Ohio Buckeye, 199. 

 Osage Orange, 133. 

 Ostrya virginiana, 81. 



Padus serotina, 155. 



virgimiana, 157. 

 Paper Birch, 91. 

 Pepperidge, 209. 

 Picea abies, 25. 



alba, 21. 



canadensis, 21. 



excelsa, 25. 



mariana, 23. 



nigra, 23. 

 Pignut Hickory, 77. 



Small, 75- 

 Pin Cherry, 159. 



Oak, in. 



Oak, Northern, 115. 

 Pine, Austrian, n. 



Black, ii. 



Jack, 9. 



Norway, 15. 



Red,' 15. 



Scotch, 13. 



Scrub, 9. 



White, 7. 

 Pinus austriaca, n. 



banksiana, 9. 



divaricata, 9. 



laricio austriaca, n. 



resinosa, 15. 



strobus, 7. 



sylvestris, 13. 

 Platanus occidentalis, 141. 

 Plum, Canada, 161. 



Red, 161. 

 Poplar, Lombardy, 59. 



Tulip, 137. 



White, 47. 

 Populus alba, 47. 



balsamifera, 53, 55. 



balsamifera candicans, 55. 



candicans, 55. 



del'toides, 57. 



dilatata, 59. 



fastigiata, 59. 



grandidentata, 51. 



monilifera, 57. 



nigra italica, 59. 



tremuloides, 49. 

 Prunus americana, v. nigra, 161 



migra, 161. 



Pennsylvania, 159. 



serotina, 155. 



virginiana, 157. 

 Pyrus americana, 147. 



coronaria, 145. 



Quercus acuminata, 107. 

 alba, 101. 

 Alexander!, 107. 

 bicolor, 105. 

 coccinea, 113. 

 ellipsoidalis, 115. 

 imbricaria, 121. 

 macrocarpa, 103. 

 marilandica, 119. 

 muhlenbergii, 107. 

 palustris, in. 

 platanoides, 105. 

 rubra, 109. 

 velutina, 117. 



Red As'h, 215. 



Cedar, 33. 



Cherry, Wild, 159. 



Elm, 125. 



Juniper, 33. 



Maple, 187. 



Mulberry, 135. 



Oak, 109. 



Pine, 15. 



Plum, 161. 

 Redbud, 167. 



Robinia pseudo-acacia, 169. 

 Rock Elm, 129. 



Maple, 181. 



Salisburia adiantifolia, 3. 

 Salix, 35. 



amygdaloides, 39. 

 245 - 



