508 



INDEX. 



Nuttallia cerasiformis, 285 

 " malvse flora, 253 

 " Munroana, 254 

 Nyctaginacese, 435 

 Nymph seaceae, 220 

 Obione leucophylla, 437 

 (Enanthe sarmentosa, 320 

 (Enothera Andina, 298 

 " biennis, 297 



" cheiranthifolia, 258 



" contorta, 298 



" densiflora, 297 



" heterantha, 298 



Lindleyi, 297 

 " parvula, 298 



" quadrivulnera, 297 



« strigulosa, 298 



Oleaceae, 434 

 Omalotlieca, 366 

 Onagracese, 296 

 Oplopanax, 325 

 Oreophila, 260 

 Orobanchacese, 391 

 Orobanche comosa, 391 



" fasciculata, 392 



Orobus littoralis, 268 



" villosus, 267 

 Orthocarpus densiflorus, 400 

 « hispidus, 400 



" pusillus, 400 



" tenuifolius, 400 



Oryzopsis Canadensis, 482 



" exigua, 481 



Osmorhiza brevistylis, 324 

 " divaricate/,, 324 



» nuda, 324 



" oceidentalis, 324 



Oxalidacese, 252 

 Oralis acetosella, 252 

 " Oregana, 252 

 " striata, 252 

 Oxytropis Laraberti, 279 

 " Plattensis, 279 



" sericea, 219 



Pachypodium, 231 

 Pachystima Myrsinites, 260 



Padus, 284 



Pseonia Brownii, 217 



" Calif ornica, 218 

 Panax horridum, 325 

 Panicum agrostoides, 480 

 " capillare, 480 

 " Crus-Galli, 480 

 u pauciflorum, 480 

 " polyrhizon , 479 

 " scoparium, 480 

 Papaveracese, 224 

 Parietaria Pennsylvanica, 456 

 Parnassia parviflora, 310 

 Paronychia t rarnosissima, 247 

 Paspalum distichum, 479 



" notatum, 419 



Pectocarya Chilense^ 418 

 " lateriflora, 418 



" penicillata, 418 



Pedicularis densiflora, 402 

 " racemosa, 402 



Pentacsena polycnemoides, 247 



" rarnosissima, 247 



Pentstemon eonfertus, 395 

 " corymbosus, 395 



deustus, 395 

 diffusus, 396 

 Gairdneri, 394 

 glandulosus, 397 

 ovatus, 397 

 Kichardsoni, 396 

 Scouleri, 394 

 speeiosus, 394 

 triphyllus, 396 

 venustus, 396 

 Peritoma, 235 



Petalostemon macrostachyum, 270 

 Peucedanum ambiguum, 318 

 " dasycarpum, 319 



" farinaceum, 318 



foeniculaceum, 318 

 latifolium, 317 

 leioearpum, 317 

 leptocarpum, 318 

 macrocarpum, 319 

 nudicaule, 319 



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