Eel-grass, I, 89 
71,85 
Various-leaved, 
cess stemmied, - “a 
Prt dog Bush, 
Penn III, 574 
Poplar, Balsam, I, 486 
Poporo 677 
Poppy Berle L223 
oppy 
Broad-horned Prickly, 
II, 
California, II, 227 
Island Tree, }1, 226 
Leafy Prickly, II, 230 
Matilija, II, 226 
Merriam’s Bear, 
FP 232 
Mexican ee II, 228 
Mojave, IT, 
Pale Rodeke tenia 
lla, 
Potentilla, eae 
II, 431 
Potato hie gies 
Ill, 
sees fs , 
Poverty Bs oe 141 
Prairie Clove 
Blue Mccinlatis: 
II, 559 
Searls’, 55 
Prairie- rocker, small- 
flowered, IT, 318 
Prairie- Shdte. II, 449 
Pretty Face, I, 399 
INDEX OF COMMON NAMES 
Prickle- leaf, IV, 551 
aise: _ ae 200 
Beach, ITI, 2 
Booth’s, ITT, om 
Clavate-frutied, 
I, 206 
rt 
Plateau, III, 201 
Refracted Desert, 
III, 197 
Shredding Ill, 201 
Sierra, III, 334 
ender- dowered, 
IIL 197 
Small, ITT, 2 
Wallowa, ee ae 
Willow-herb, IIT, 200 
Wing-seeded, III, 204 
Primula 
Cusick’s, III, 334 
Sierra, III, 334 
s, IV, 232 
2 
Pterostegia, I 
Pteryxia 
Rock, III, 
oe Ill, 274 
oak Ill, 548 
Purple-bush, Ill, 24 
Purple Mat, ITI, 525 
Eee 
Ill 
purer: 1,135 
American Marsh, 
III, 168 
7 III, 117 
Sea, II, 77 
Southern Marsh, 
Paw 
W se a in, ie 18 
the 
Single- headed, IV, 274 
IV, 272 
Say. IV, 274, 276 
Quail Brush, IT, 86 
QuassIA FAMILY, 
Queen Anne’s Lace, 
II, 22 
228 
QuiILtwort FaMILy, 
3 
Western, , a 
Rabbit-bru 
Cha ee IV, 300 
Common, IV, 302 
cae IV, 300 
ng-flowered, IV, 300 
Nectleeaved, IV, 298 
Parry’s, IV, oe 
Pune ine iV52 
Sticky-leaved, W, 298 
Rabbit-foot, IV, 156 
aa s Foot, I, 147 
Radis 
rae a Tip2r5 
Wild, II, 275 
Ragwort, Tansy, 
450 
Raillardella 
Green-leaved, IV, 428 
a V, 428 
esti: 457 
a siountain 
II 
Ww oe Sem 
IT, 457 
645 
“Glandular, II, 628 
Pine, I, 
Msp 
s, IT, S75 
Cade IT, 586 
Cima, IT, 59 
Clar a Hunt's, IT, 603 
Clovelsadie IT, 603 
Prov ‘idence Mountain, 
IT, 582 
Rattan’ s, II, 603 
ernardino, 
II, 602 
Sand, IT, 587 
San Diego, IT, 583 
Redberry, Ill, 63 
