, 





314 



BOTANY OF THE DEATH VALLEY EXPEDITION. 



Platanthera elegane 



leucostaebya 



Plantanus racemoaa 



Platystemon californicus 58 



Pleurapliis mutica 



rigida - 



Pleuricospora fimbriolata 147 



Pluchea borealia 



camphorata 127 



aericea 128, 23 



riiinibaginaceaj 



Poa . 



Page. 



Plnntngo pnrshii 176 



Platanaceee 195 



201 

 20] 

 195 

 ,260 

 215 

 21fl 

 284 

 128 

 248 

 238 

 147 

 280 

 251 

 219 

 265 



si 

 151 

 280 

 ] 56 



69 

 185 

 269 

 261 

 269 

 19] 

 191 

 265 

 261 

 26] 

 2(i7 

 191 

 227 

 128 

 22!) 



fendleriana 218, 241, 



nervata , 



pratonsis 218, 



Poison ivy 



l'olemoniaceffi 



Polemotiium confertmn - 150, 



occidentals 



Polygalaceas 



FolygoiiiK-ose 



Polygonum 240, 



acre 191, 



ampliiln'um .101, 



ampbibium emeraimi 



avieulare 



bistortoides. 191, 



emers um 191 , 



hydropiporoidea 191, 



imbricatum ] 91 , 



nin lilenbergii 



PolypodiacesB 



Polypappua eericens 



Polypodiimi fragile „ 



Polypogon monspcliensia. . 217, 23, 238, 249. 25:!, 255 



Polytrichum pili I'erum 230, 28:i 



Poppy - 59 



Populus fremontii 200, 23, 244, 255 



fremontii wislizeni 200 



man ili fera 200. 255, 259 



tremuloides 200, 266 



trichocarpa 200, 200, 281 



Porophyllum graoQe 136, 242 



Port nlaca portulacastraro 114 



Portulacaccie 72 



Potamogeton foliosus 210,201,269 



foliosus liiagarensis 210, 257 



heterophyllus 210, 271 



loneliites 210, 261 , 202 



niagarensia 210 



spirillua 210, 262 



Potontill a 200, 207, 269, 270, 274, 280 



broweri 95 



douglasii 95, 274 



«• re in i »• si 95, 241 



glandulosa .95, 263, 266 



glandulosa nevadensia 95 



gracilis rigid a 9G, 264 



nrillegrana 9") 



plattenslfl 90, 273 



prociimbens 96, 268 



l>ui ixn a«4 111- piuctoi-um-96, 160 



rigida 90 



rivalis inillegrana 96, 252, 273 



Page. 



Potontilla santolinoides 96, 209, 282 



wlieeliii 96, 271 



Pot-herb 72 



Prenaiithes exigua 144 



tennifolia 145 



Primula suffiruteacens 147, 270 



Primulacere 147 



Prosopis juliflora 89, 23, 47, 193, 237 



pubescens 89,23 



Prunella vulgaris 170, 275 



Primus andei'sotiii 90, 252, 253 



demiaaa 90,257 



emarginata 90 



faectculata 90, 24, 245, 250, 251, 270 



ilicifolia 91,25,235 



Psatliyrotes annua 1 30, 45, 1 37, 255 



ramosissima 137. 238, 246 



Pseudotsuga maerocarpa 223, 259 



Psilost roplie cooperi 133, 239 



Psoralea californica 84, 257 



castorea 84, 277 



Ptoroapora andromedea 146, 204 



Tterostegia drymarioides 191 , 22, 244, 247 



Ptilocalaia nutans 142, 2 7 4 



Ptiloria exigua 144,234 



parryi 144, 250 



pentachffita 144, 255, 278 



ten ui folia 145,272 



Pnccinia gilirc 231 . 282 



menthro 231, 283 



Pugiopappus bigelovii 132 



Pulmonaria sibirica 100,264 



Pulsatilla occidont alia 50,207 



Pursbia glandulosa 92 



tridentata 93 



Pyrola pieta 140, 281 



rotundifnlia . 146, 271 



Py rua occidentalis 97 



Quercus 234 



breweri 190, 25, 263 



californica 1 96. 260, 281 



chrysolepia 100. 25, 20, 193, 259, 281 



douglaaii.. 190,25, 20,193, 256, 259 



dumosa 197, 235, 239 



duniosa bulla ta 197 



fulvescens 190 



gam belii 197, 234 



kelloggii 196,193 



lobata 197, 25, 258, 259 



oersted iana 196 



tinet oria californica 196 



undulata 197, 242 



■wializeni 197, 250, 258, 259 



Radiation, adaptations to lessen 54 



Rafinesquia neoiuexicana 145 



Raillardella argentea 139, 208 



scaposa eisoni 139, 208 



Raillardia argentea 139 



Rainfall in Death Valley 33 



Ramalina crinita 292 



Ramona polys tachya 175,235 



Range, definition of 10 



Ranunculacew 55 



Ranunculus alisnisefoliua alisniellua.. .56, 268, 28!i 



