202 



INDEX. 



Pink family 72 

 Pinus 49 

 Pipsissewa 145 

 Pistacio 116 

 Planera 70 

 Planer tree 70 

 Platanaceae 88 

 Platanus 88 

 Plum 88, 101 

 Plum, Moxie 153 

 Poinsettia 114 

 Poison ivy 8, 117 

 Poison oak 117 

 Poison sumach 117 

 Polemoniaceae 165 

 Poplar 56, 77 

 Populus 56 

 Potato family 167 

 Potentilla 98 

 Prickly ash 112 

 Primavera 168 

 Prince's pine 145 

 Privet 162 

 Privet, Swamp 161 

 Prunus 101 

 Psedera 132 

 Pseudotsuga 47 

 Ptelea in 

 Pteridophyta 43 

 Pterocarya 59 

 Puccinia 75 

 Pueraria 9, in 

 Pussy willow 57 

 Pyracantha 96 

 Pyrola 145 

 Pyrolaceae 145 

 Pyrus 91 



