220 INDEX TO PART LI 
Pine, Jersey, 177. Pinus pungens, 177. 
Lambert’s, 172. resinosa, 176. 
Loblolly, 174. rigida, 174. 
Long-leaved, 174, strobus, 172. 
Masson’s, 175. sylvestris, 177. 
Mountain, 173, 177. Teeda, 174. 
Nut, 178. ‘Plane, Oriental, 139. 
Old-field, 174. Planera, 135, 136. 
Pifion, 178. Planer-tree, 136. 
-Pitch, 174. Plane-tree Family, 139. 
- Red, 176. Platanacer, 139. 
Scotch, 177. Platanus, 139. 
Serub, 177, 178. Plum, 98, 99. 
Stone, 173. Plum, Date, 120. 
Sugar, 172. Podoecarpus, 200, 201. 
Swiss Stone, 173. Poison Dogwood, 90. 
Table-Mountain, 177. Elder, 90. 
Twisted-branched, 177. Sumac, 90. 
Umbrella, 191. Pomegranate-tree, 108. 
Weymouth, 172. Populus, 167-170. 
White, 172, 173. Poplar, Balsam, 170. 
Yellow, 174, 176. Black, 170. 
Pine Family, 170. Carolina, 169. 
Pin-oak, 156. Downy-leaved, 169. 
Pifion Pine, 178. Lombardy, 169. 
Pinsapo Fir, 186. Necklace, 169. 
Pitch-pine, 174. White, 168. 
Pinus Austriaca, 175. Post-oak, 153, 154. 
Banksiana, 178, Prickly Ash, 73, 74, 
Cembra, 173. Pride of India, 75. 
contorta, 177. Prunus, 97-100. 
denstflora, 176. Ptelea, 74. 
edulis, 178. Pterostyrax, 121. 
excelsa, 172. Pulse Family, 92. 
flexilis, 173. Punica, 108. 
inops, 177. Purple Japan Magnolia, 66. 
Lambertiana, 172. Purple-leaved Birch, 146. 
Laricio, 175. Purple Willow, 165. 
Massoniana, 175. Pyramidal Birch, 146. 
mitis, 176. Oak, 159. 
monophylla, 178. Pyrus, 100-103. 
monticola, 173. 
palustris, 174. Quaking-asp, 168. 
ponderosa, 174, Quassia Family, 76. 
