INDEX. 



415 



Plantain, Rattlesnake 112 



Water.... _ 30 



Plantain Family ^^^ 



Pleuricospora 2/1 



Pleuropogon 49 



Plum 199 



Indian 200 



Plumbaginaceae 286 



Poa 52 



POACEAE 31 



Poison Oak 234 



POLEMONIACEAE 292 



Polemonium 294 



POLYGONACEAE 125 



Polygonum 128 



POLYPODIACEAE 1 



Polypodium 2 



Polypody, Leather-leaf ^3 



Polypogon 39 



Polystichum _6 



Pond Lily, Yellow 151 



Potidweed 2o 



Horned _• 28 



Pondiveed Family 25, 86 



PONTEDERIACEAE 86 



Poppy, California 165 



Poppy Family 164 



Populus 118 



Portulaca 13' 



PORTULACACEAE 136 



Potamogeton 25 



Potentilla 208 



Prickly Lettuce 360 



Prickly Pear 244 



Primocarex 66 



Primrose, Evening 253 



Primrose Family 28j 



Primulaceae 283 



Prunella 311 



Prunus 199 



Pseudotsuga ^21 



Psilorarphus 390 



Psoralea 218 



Pteridium 4 



Pteridophyta _^1 



Pterospora 2/2 



Puccinellia 59 



Pulsatilla 154 



Pulse Family 212 



Purslane 13 ' 



Purslayie Family 136 



Pyrola 274 



Pyrolaceae 270 



Pyrola Family 270 



Pyrus 200 



Quack-grass 62 



Quamasia 98 



Quercus 121 



Quillwort 15 



Quillwort Family 15 



Rabbit's Ear Clover 221 



Radicula 179 



Radish 168 



Wild 168 



Rainiera 383 



Ranunculaceae 151 



Ranunculus 156 



Raphanus 168 



Rapuntium 343 



Rattlesnake Plantain 112 



Razoumofskya 123 



Red Alder 120 



Red Clover ■ • • 220 



Red Fir 22 



Red-flowering Currant 187 



Redtop 43 



Reed Canary-grass 36 



Reed Meadoiv-grass 59 



Rhamnaceae 236 



Rhamnus 236 



Rhinanthus 326 



Rhododendron 282 



Rhus 233 



Ribes 185 



Rock Cress 169 



Rocket 1'3 



Rocky Mountain Juniper 18 



Romanzoffia -9' 



Rosa 204 



Rosaceae 19/ 



Rose 21.4 



Rose Family 197 



Rotala 246 



Rough Meadow-grass 54 



RUBIACEAE 334 



Rubus 203 



Rudbeckia 375 



n 1^7 



Rumex ^-■' 



Running- pine 14 



Ruppia 2/ 



Rush 8/ 



Scouring 12 



Spike 82 



Wood 91 



Rush Family 87 



Russian Thistle 13^ 



Rye-grass 62 



English 61 



Italian 61 



Perennial 61 



Rynchospora 82 



