502 
Page. 
AUhini, L 485 
striatum, Jaeq 488 
tiibracteatulu, Torr 353, 488 
tricocciim, Ait 485 
imiiblium, Kell 486 
validum, S.AVatson 350, 486 
AUosoms aclirosticJioides, Sprenq,' 396 
Aloe yuccafoUa, Gray 497 
Alnns incana, Wilkl 322 
rubra, Bong 324 
serrulata, L 324 
Alopecurus aristnlatus, Mx , 375 
geniciilatus, L 375 
Alternanthera, Mart 297 
lanuginosa, Torr 297 
Amaraxtace.e 296 
Auiarautus albus, L 296 
paniculatus, L 296 
retroflexus, L 296 
Aiublystegium compactum, Miill 410 
noteropbilum, Sull 410 
ortbocladon, Sull 410 
radicale, Beauv 410 
riparium, L 410 
serpens, Dill 410 
Ambrosia artemisia>folia, L 165 
coronopifoUa, T. &. G 165 
psilostacliya, DC 165 
Aiiii'lauchier Canadensis, T. & 6 92 
Am'miith'unn XiittalUi, Gray 343 
Amida, Nutt 179 
gracilis, Nutt 179 
liirsuta, Nutt , 179 
Amiuanuia lati folia, L 103 
Amsincliia, Lclim 240 
aiigustifolia, Lelim 240 
intermedia, F. & M 240 
Ij'copsoides, Lelmi 240 
Mexicana, Mart. & Gal 240 
spectabilis, F. &. M 240 
Ariacalypta latifolia, Xees & IIscli 399 
AXACAUni Vf I..K r,2 
Aiitditlitrix sj/mos«, Xutt 283 
Atidrosa(^e occideutalis, Pursh 213 
septentrionalis, L 213 
iViHlnistepliium, Torr 439 
vidlaci nui, Torr 489 
Anemia Cdli/vniiea, Xutt 42g 
Anemone Caroliniana, Walt 5 
decapetala, L 5 
lanigera, Gay 5 
niultifida, DC 5 
Aiit iiiDpNis, Hook 425 
Californica, Hook 426 
Angelica Breweri, Gray 126 
piiniata, S. AVatson 126 
Anisoeotiia, (iray ]97 
araulis. Gray I97 
Antenuaria alpina, G;ertu 185 
Page. 
Antennaria Cai-pathica, R. Br 185 
dimorpba, T. & G 186, 422 
dioica, Ga?rtu 185 
margaritacea, R. Br 185 
Anticlea Fremontii, Torr 343 
Antirrhinum, Touru 449 
BrcAveri, Gray 450 
coufertiflorum, Benth 449 
Cooperi, Gray 451 
cornutum, Benth 450 
Coulteriauum, Benth 450 
cyathiferum, Benth 449 
tilipes, Gray 451 
glandulosum, Lindl 450 
junceum, Gray 451 
Kingii, S. Watson 215, 450 
leptaleum, Gray 450 
maurandioides, Gray 451 
Nuttallianum, Benth 450 
speciosum, Gray 451 
strictum, Gray 451 
vagans, Gray 216,450 
Yirga,Gray 450 
Aphyllon fasciculatum, T. & G 215 
uniflorum, T. & G 215 
ArocYXACE.E 282 
Apocynum audrosiemifoHum, L 282 
caniiabinum, L 282 
Aplopappus, Cass 153 
acaulis, Gray 161 
apargioides, Gray 161 
Bloomeri, Gray 158 
lanceolatus, T. &, G 160 
Macronema, Gray 159 
nanus, D. C. Eaton 159 
Nuttallii, T. & G 163 
paniculatus, Gray 162 
Parryi, Gray 162 
sphaerocephalus, Harv. & Gray.. 163 
spinulosus, DC 422 
suffruticosus. Gray 159 
tenuicaulis, D. C. Eaton 160 
unifloms, T. & G 161 
Aquilegia oairulea, James 10 
Californica, Lindl 10 
Canadensis, L 10 
eximia. Van Houtte 10 
tlavesceus, S. Watson 10 
trimcata, F. & M 10 
Arabia areuata, Gray 13 
oanesceus, Nutt 16, 17 
Drummondii, Gray 17 ig 
hirsiita, Scop iq 
longirostris, S. Watson 17 
mollis 
patula, Torr j^g 
perfoliata, Lam 17 
platysperma, Gray 16 
imhernJa, Nutt \Q 
