300 



[448 



Eeferences to the Flora are In brackets \ 1 



Primula [187 



angustifolia 42, [187 



Parryi 37, 39, 42, [187 



Primulaceae [187 



Primulales [187 



Prosartes trachycarpa [93 



Prunella [206 



vulgaris 11, 26, [206 



Prunus [151 



Americana 20, 22, [151 



Besseyi [152 



melanocarpa 23, 29, 30, [152 



Pennsylvanica 22, 29, [152 



prunella [151 



Watsoni [152 



Pseudocymopterus [185 



montanus multifidus [185 



multifidus [185 



sylvaticus [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 [50 



aquilinum pubescens. . . . 25, [50 



Pteridophyta [49 



Pterospora [185 



Andromedea 26, 43, [185 



Ptiloria [255 



pauciflora [255 



ramosa [255 



Ptiloria, branching [255 



few-flowered [255 



Puccinellia [73 



airoides 16, [73 



Puccoon [203 



hoary [203 



narrow-leaved [203 



short-flowered [203 



Pulsatilla.. [121 



hirsutissiraa 18, [121 



rosea [121 



Purple false foxglove [215 



Bessey's [215 



Purple ground cherry [209 



lobed.... [209 



Purshia tridentata [147 



Purshia [147 



three-toothed [147 



Purslane /ll4 



common [114 



retuse-leaved [114 



Purslane family [113 



Pussley 



Pyrola 



rotundifolia uliginosa 



secunda 26, 



uliginosa 26, 



uniflora 



Pyrolaceae 



Pyrrocoma 



crocea 



Pyrrocoma, yellow 



Quack grass, false 



Quincula 



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 



ereiuogenes 



Flammula reptans 



inamoenus 33, 37, 



Macounii 11, 



micranthus 



micropetalus 33, 37, 



Nultallii 



pedatifidus H, 39, 



reptans 28, 37, 



sceleratuseremogenes. . .11, 



Raphanus 



