Index 



Narthecium, 134, 140. 



Navarretia, 309. 



NemophUa, 309, 312. 



Nephrodium, 76. 



Nuphar, 185. 



Nyctaginaceae, 172. 



Nympheaceae, 185. 



Oak {Quercus), 155. 



Ocean Spray {Holodiscus 1.), 231. 



Oenothera, 269, 270. 



Onagraceae, 269. 



Onijchium, 74. 



Ophioglossaceae, 78. 



Ophrys, 145. 



Orchidaceae, 145. 



Orchis family, 145. 



Oreastrum, 363, 364. 



Oregon Cliff -brake (Pellaea 3.), 74. 



Oreobroma, 180, 181, 182. 



OreocaUis, 290. 



Oreoearya, 316, 319. 



Oreostemma, 363. 



Omit hog alum; 134. 



Orochaenactis, 353, 380. 



Orpine family, 212. 



Ortliocarpus, 322, 343, 



Oryzopsis, 90, 92. 



Osmorrhiza, 275. 



OavI's Clover (Ortliocarpus), 343. 



Oxyria, 158, 166. 



Oxytheca, 159. 



Ozomelis, 216. 



Paeonia, 186, 193. 



Painted Cup (Castilleja), 339. 



Pale Laurel (Kalmia 1.), 289. 



PaniouJaria, 105, 



Parnassia, 214. 



Parrya, 197, 204. 



Parsley family, 275. 



Pearlwort {Sagina), 175. 



Pectiantia, 216, 217. 



Pedicularis, 322, 337. 



Pellaea, 72, 73. 



Penny Cress (Thlaspi), 201. 



Pentstemon, 322. 



Peony {Paeonia), 193. 



P etropliyton, 232. 



Peucedanum, 275, 277. 



P/w^a. 257. 



Phacelia, 309, 313. 



Phalacroseris, 353, 403. 



Phalangmm, 138. 



Phleiim, 90, 93. 



Phlox, 301, (305), 



Phlox family, 301. 



Phoenicaulis, 204. 



Phyllodoce, 282, 289. 



Pimpinella, 279. 



Pinaceae, 81. 



Pine (Pinus), 81. 



Fox-tail Pine (Pinus 4.), 83. 



Jeffrey Pine (Pi7ius 5.), 83. 



Limber Pine (Pinus 2.), 82. 



Silver Pine (^Pinus 1.), 81. 



Tamarack Pine (Pinus 6.), 84. 

 Pine family, 81. 



Pine Mistletoe (Arceutlwbium) , 156. 

 Pink family, 172. 

 Pinus, 81, (85). 

 Pipsissewa (Chimaphila) , 283. 

 Pitcher Plant (Darlingtaiiia) , 212. 

 Platanthera, 147. 

 Pleiocardia, 209. 

 Pleuricospora, 282, 284. 

 Pneumonant'he, 296. 

 Poa, 91, 103. 

 Podistera, 275, 281. 

 Polemoniaceae, 301. 

 Polygonaeeae, 158. 

 Polygonum, 158. 

 Polypodiaceae, 72. 

 Polypodium, 76, 77, 78. 

 Polystichum, 72, 75. 

 PondAveed (Potamogeton), 88. 

 Pondweed family, 88. 

 Populus, 148, 153. 

 Portulacaceae, 180. 

 Potamogeton, 88. 

 Potentilla, 228, 234, (240), (241), 



(242), (243), (244), (246). 

 Pride of the mountains (Pentstemon 



1.), 322. 

 Primrose (Primula), 292. 

 Primrose family, 292. 

 Primula, 292. 

 Primulaceae, 292. 

 Prunus, 228, 229. 

 Pter>Tcia, 275, 280. 

 Ptilocalais, 403. 

 Pulsatilla, 188. 

 Pulse family, 248. 

 Purple Cinquefoil (Potentilla 13.), 



239. 

 Purslane family, 180. 

 Pussv-paws (Spraguea), 184. 

 Pyrola, 282, (283), 285. 

 Pyrrocoma, 351. 

 Pyrus, 228, 233. 

 Quercus, 155. 

 Quillwort (Isoetes), 80. 

 Quillwort family, 80. 

 Eabbit-brush (Chrysothamnus) , 355. 

 Eaillardella, 353, 382. 

 Baillardia, 382. 

 Eamischia, 285. 

 Eanuneulaceae, 186. 

 Ranunculus, 186, 194. 

 Rattle-weed (Astragalus), 257. 

 Bazoumofslya, 157. 

 Red Fir (Abies 1.), 85. 

 Reed Bent Grass (Calamagrostis) , 96. 

 Rein-orchis (Habcnaria), 146. 

 Rhamnaceae, 263. 

 Pihodiola, 212. 

 Ribes, 214, 223. 

 Rock-brake (Cryptogramma) , 72. 



[421] 



