300 



INDEX 



[448 



References to the Flora are in brackets 



Primula. . . 



angustifolia 42, 



Parryi 37,39,42, 



PRIMULACEAE 



PRIMULALES . . 



Prunella 



vulgaris 11, 26, 



Prunus 



Americana 20, 22, 



Besseyi 



melanocarpa 23, 29, 30, 



206 

 206 

 151 

 151 

 152 

 152 



Pennsylvanica 22, 29, [152 



prunella, 



Watsoni 



Pseudocymopterus. . . . 

 montanus multifidus . 



multifidus 



sylvaticus.. . 



151 

 152 

 185 

 185 

 185 

 185 



tenuifolius 39 



Pseudotsuga 24, 54 



Douglasii 54 



mucronata 25,31, 54 



Psoralea [160 



argophylla 14, 18, [160 



tenuiflora 14, 15, 18, [160 



Psoralea 13 



Pteridium 



aquilinum pubescens. . . . 25, 



PTERIDOPHYTA 



Pterospora 



Andromedea 26, 43, 



Ptiloria 



pauciflora 



ramosa 



Ptiloria, branching 



few-flowered 



Puccinellia 



airoides 16, 



Puccoon 



hoary 



narrow-leaved 



short-flowered 



Pulsatilla 



hirsutissima 18, 



rosea 



Purple false foxglove 



Bessey's 



Purple ground cherry 



lobed 



Purshia tridentata 



Purshia 



three-toothed 



Purslane /1 14 



common [114 



retuse-leaved [114 



PURSLANE FAMILY [113 



50 

 50 

 49 

 185 

 185 

 255 

 255 

 255 

 255 

 255 

 73 

 73 

 203 

 203 

 203 

 203 

 121 

 121 

 121 

 215 

 215 

 209 

 209 

 147 

 147 

 147 



Pussley 



Pyrola 



rotundifolia uliginosa 



secunda 26, 



uliginosa 26, 



uniflora 



PYROLACEAE 



Pyrrocoma 



crocea 



Pyrrocoma, yellow 



Buack grass, false 

 uincula 



lobata 16, 



Rabbit-brush 13, 



fairest 



fasciculate 



handsome 



heavy-scented 



Parry's 



Radicula 



calycina 11, 



curvipes 



hispida 11, 



obtusa 



sinuata 



Radish 



garden 



Ragweed 



common 



entire-leaved 



great 



western 



RAGWEED FAMILY 



Rainfall 



RANALES 



RANUNCULACEAE 



Ranunculus 



abortivus 22,28, 



adoneus 41, 



affinis 



cardiophyllus 



micropetalus 



alpeophilus 39, 



cardiophyllus 33, 



Cymbalaria 



ellipticus 



eremogenes 



Flammula reptans 



inamoenus 33, 37, 



Macounii 11, 



micranthus 



micropetalus 33, 37, 



Nuttallii 



pedatifidus 33,39, 



reptans 28,37, [122] 



sceleratus eremogenes. . .11, [124] 



Raphanus [131] 



