INDEX 



195 



Osmaronia, 81. 

 Oso Berry, 81. 

 Owl's Clover, 150. 

 Oxalis, 97. 

 Oyster Plant, 164. 



Pseonia, 62. 

 Pseony, 62. 

 Pansy, 109. 

 Papaveracese, 64. 

 Papilionaceae, 89. 

 Parsley Family, 117. 

 Pattern's Spruce, 17. 

 Pea Family, 89. 

 Pear, 88. 



Pearly Everlasting, 173. 

 Pea Vine, 94. 

 Pedicularis, 151. 

 Pentacaena, 58. 

 Pentstemon, 148. 

 Pepper Grass, 68. 

 Pepper-root, 71. 

 Pepper Tree, 101. 

 Perezia, 167. 

 Phacelia, 135. 

 Philadelphus, 79. 

 Phlox Family, 130. 

 Photinia, 88. 

 Physocarpus, 82. 

 Picea, 16. 

 Pickeringia, 90. 

 Pigweed, 51. 

 Pigweed Family, 49. 

 Pimpernel, 126. 

 Pine, 18. 

 Pine Family, 13. 

 Pink Family, 55. 

 Pinus, 18. 

 Piperacese, 39. 

 Plantaginaceae, 153. 

 Plantago, 153. 



Plantain Family, 153. 

 Platyspermum, 70. 

 Platysteinon, 65. 

 Platystigma, 65. 

 Pluchea, 172. 

 Plum, 81. 



Plumbaginaceae, 127. 

 Poison Oak Family, 101. 

 PolemoniaceaB, 130. 

 Polygalaceae, 98. 

 Polygala Family, 98. 

 Polygonaceae, 47. 

 Polygonum, 49. 

 Pomeae, 87. 



Poor Man's Barometer, 126. 

 Popcorn Flower, 150. 

 Poplar, 42. 

 Poppy Family, 64. 

 Populus, 42. 

 Port Orford Cedar, 14. 

 Portulaca, 53. 

 Portulacacese, 52. 

 Portulaca Family, 52. 

 Post Oak, 45. 

 Potato, 145. 

 Potentilla, 85. 

 Prairie Pointers, 125. 

 Prickly Poppy, 65. 

 Primrose Family, 125. 

 Primulacese, 125. 

 Prince's Pine, 124. 

 Prosartes, 34. 

 Primus, 81. 

 Pseudotsuga, 17. 

 Psoralea, 93. 

 Pulse Family, 89. 

 Purple Sanicle, 118. 

 Purshia, 83. 

 Purslane, 53. 

 Pusley, 53. 

 Pussy-paws, 54. 



