INDEX. 
519 
Page. 
Pliacclia Lumilis, T. & G 250 
integrifolia, Torr 250 
Ivesiana, Torr : 254 
Menziesii, Torr 252 
Palmeri, Torr 251 
pnsiIJa, Torr 253 
rotundifolia, Torr 253 
sericea, Gray 252 
tanacetifolia, Benth 251 
Pbalaris arundinacea, L 393 
intermedia, Bosc 393 
Pluslixwa comosa, T. & G 215 
eriantliera, Eng 215 
Ludoviciana, Walp 215 
Pliilonotis calcarea, Br. & Scli 407 
fontana, L 407 
Plilenm alpiniim, L 375 
pratense, L 375 
Phlox, L 462 
adsurgens, Torr 4G4 
atnceua, Sims 462 
bifida, Beck 463 
bryoides, Nutt 463 j 
caispitosa, Nutt 259, 463 
canescens, T. & G 259, 463 
divaricata, L 462 
Doiiglasii, Hook 260,463 
Drummoiidii, Hook 464 
Floridana, L 462 
glaberrima, L 462 
Hoodii, Kich 463 
linearifolia, Gray 464 
longifolia, Nutt 260,464 
maculata, L 462 
innscoides, Nutt 463 
nana, Nutt 464 
ovata, L 462 
paniculata, L 462 
jnlosa, L 462 
reptans, Mx 463 
Richardsonii, Hook 463 
Eojmeriana, Scbeelo 464 
Sibirica, L 463 
speciosa, Pursh 464 
Stellaria, Gray 463 
subnlata, L 463 
Phcenicaulis cheiranfhoide-s, Nutt 14 
Phragmites communis, Trin 3!)0 
Phj'salis pubescens, "VVilld 274 
Pbysaria, Nutt 20 
didymocarpa, Gray 20 
Pbyscia obscura, Nyl 41-' 
stcllaris, (L.) 412 , 
Pbyscomitrium pygmrcum, Janas 404 
pjri forme, 404 
Pid'othamnus dem'torum, Nutt 180 
Pimpinella, L 121 
apiodora. Gray 121 
Pinus amalnlis, Dougl 
ariatata, Eng 
Pinus Balfouriana, Murr 
JBolanderi, Pari 
commntata, Pari 
contorta, Dougl 
Bottfflasii, Sabiu 
ednlis, Eug 
flexilis, James 
grandh, Dougl 
Menziesli, Dougl 
monopbylla, Torr 
pondero.sa, Dong] 
Piptocalyx^ Torr , 
circuniscissus, Torr 
Pisonia, L 
aculeata, L 
obtusata, 
Placodium ('crinuin. Nil'--. A llcjip. ... 
f'lcgaiis, l.ink 
fiilgciis, DC 
vitt'lliimin, Nn'g. v!^ ]fcp]». . 
PIagiohotry>i ca»<'.s'(;i.s, Jicu'li 
Pl.vntacin .vcK.i: 
Plantago Jiigdovii, (iiay 
eriopoda, Torr 
Patagonica, Jacq 
pusilla, Nutt 
Platanthera ftjclida, Gey 
Platy.speniuini, Hook 
scapigeruni, Hook. .... 
Plectritis, Lindl 
cougcsta, DC 
Pleurapbis, Torr 
Jamcsiii, Torr 
Poa alpina, L 
Andina, Nutt 
annua, L 
arctica, 11. I'r 
cassia. Sin 
Eatoni, S. Watson 
Ik'xnosa, Mnlil 
Hallii. (Hiil.-t 
Kingii, 8. "W'.'ttscjii 
laxn, Ha'iike 
neitior;! lis. L 
seroHiia, VAuh 
tenuifnlia, Niitl 
Vivim'm, L 
I'rowiiii. I loiii,'! 
l'o]ai)i.si:i tnichjiypi fmn, V . \ (. 
uiiiglandulosa, DC - - 
Pi >i.r.M< iMA< 
I'olcnioiiiuiii. 'rnuiii. f '■- 
(•a'ruli-uiii, L 
ciiiifrrtiuii, dray 'JTl 
biiiuil.-. Wilid 
inii raiitliiiiu, Umtli "JT-J 
r*']ita!is. L , 
V i.scosiuti. Xii?! 
jirof'iimiK-Tis, (jiairx' 
piiltlu rrijiia, Lebiii 
Tape. 
331 
330 
332 
3:!0 
334 
330 
332 
:!31 
3;',3 
330 
331 
210 
210 
475 
475 
475 
412 
4!2 
412 
412 
214 
212 
212 
212 
•J 1 3 
213 
341 
20 
20 
. 422 
3-1 
:'.-6 
3.-8 
3.-5 
.3,-6 
3-6 
3-i; 
:i-6 
:{.-6 
:!-6 
3-6 
3.-6 
12 
12 
:i4 
17(1 
170 
470 
170 
570 
