(357 



Poa— teuuifolia 309 



trivialis 309 



Pogogyne 50, 135 



Douglasii 135 



parviflora 135 



sei-pylloides 135 



POLKMONIACE^ 162 



POLEMONIALES 153 



Polemonium 21, 163 



carneum 163 



POLYADELPHIA 59 



POLYANDRIA 47 



DI - TRI - TETRA - PENTA - 

 POLYGYXIA 48 



MOXOGYXIA 47 



PoLYCARPic^ 230, 322 



Polygala 56, 57, 210 



cucullata 210 



POLYGALACE^ 210 



POLYGONACEa: 274 



Polygonum 24, 38, 275 



ayiculare 275 



Californicum 275 



convolvulus 276 



Muhlenberghii 276 



nodosum 276 



paronychia 275 



POLYPETAL^ 175 



POLYPODIACE^ 331 



Polypodium 332 



Scouleii 332 



vulgaris 332 



Polypody 332 



Polypogon 11, 300 



littoralia 300 



Monspeliensis 300 



Pomaces 252 



Pondweed 323 



Poplar 217 



Populus 79, 217 



trichocarpa 217 



POTAME^ 323 



Potamogeton 18, 323 



lucens 324 



natans 324 



pauciflorus 324 



pectiuatus 324 



Potentilla ,.46, 249 



anserina 249 



glaudulosa 249 



Portulaca, 35, 36, 42, 43, 45 

 195. 

 oleracea 195 



PORTULACACE^ 195 



Prickly Poppy 230 



Primolace^ 171 



Primulales 170 



Prosartes 33, 284 



Hookeri 285 



Menziesii 285 



Prunella 50, 138 



vulgaris 138 



Prunus 246 



demissa 246 



emarginata 246 



ilicifolia 246 



Pseudotsuga. . 327 



Douglasii 327 



Psilocarphus 67, 70, 89 



Oreganus 89 



tenellus 89 



Psoralea 57. 58, 261 



macrostacbya 262 



orbicularis 261 



