INDEX. 
503 
Page. 
Arabia retrofracta, Grab 18 
Arcbangelica Gmeliui, DC 127 
officinalis, Hofl'. 127 
Arctostapbylos glauca, Liiidl 210,425 
pmigens, HBK 210,425 
tomeutosa, Doiigl 210 
Uva-ursi, Spreng 210 
Areiuuia aciiloata, S. Watson 40 
arctica, Stev 41 
congesta, Nutt 39,40 
Fendleri, Gray 40,417 
formosa, Fiscli 39, 40 
lateriflora, L, 41 
nardifolia, Ledeb 39 
pungens, Xutt 40 
verna, L , 41,417 
Argemone hispida, Gray 13 
Mexicana, L 13 
munita, Dur. & Hilg 13 
Aristida Fendleriana, Stcnd 381 
lougiseta, Steud 381 
purpurea, Nutt 381 
Arnica amplexicaulU, Nutt 187 
angustifolia, Vabl 186 
Cbammissoiiis, Less 187 
cordifolia, Hook 187 
latifolia. Bong 187 
longifolia, D. C. Eaton 186 
mollis, Hook 187 
montana, L 187 
Artemisia arbuscula, Nutt 182 
biennis, Willd 183 
caua, Pursb 180 
discolor, Dougl 183 
Douglasiana, T. & G 183 
dracunculoides, PursL 181 
filifolia,Torr ISl 
frigida, Willd 184 
Ludoviciana,Nutt 183 
potentilloides, Gray 182 
scopiilorumj Gray 184 
spinescens, D. C. Eaton 180 
trifida, Nutt 182 
tridentata, Nutt 181 
Arthrocnemum fruticosum, Moq 294 
ASCLEPIADACE^ 282 
Asclepias cryptoceras, S. Watson 283 
Bouglasii, Hook 282 
fascicularis, Decue 282 
speciosa, Torr 282 
Tcrticillata, L - 282 
Aspidinm Loncbitis, Swartz 396 
Asplenium angustum, Willd ■^^^ 
Filix-fcemina, Bernb 396 
Aster adscendens, Lindl 1'^*' 
aistivus, Ait 
Andersonii, Gray l^" 
Andinus, Nutt 
augustus, T. & G 
Page. 
Aster Bloomovi, Gray 140 
catnpc'itri'i, Nutt 140 
ciiiiicus, Nees 141 
J ouglasii, Lindl 141 
rlcnaus, T. AC. 144 
Eiigdmunnl, Gray 144 
faleatus, Lindl 140,141 
glacialis, Nutt 142 
glaucns, T. ^ G 114 
integriibliiis, Nutt KSO 
Kingii, I). V. llatou I ll 
multiflorus, Ait I ll 
Nuttallii, T. & G 139 
oblongifolius, Nutt 140 
pulcbellus, D. C. Eaton 143 
ramulosiis, Nutt. 140 
salsuginosns, Kicb 1 12, 1 13 
simplex, Willd 1 10 
Astragalus, Tourn 435 
aboriginiiui, b'icii 70, 438 
ad.singcns, Tall G-*, 139 
alpinus, L 13~i 
Andersonii, Gray (IT, i:!7 
aridus. Gray 413 
Arizonicus, Gray 137 
arrectns, Gray ''9, l-'>7 
Arthn-Schottii, Gray 6C), 4:'.5 
atratus, S.Watson 69,437 
Beckwithii, T. & G 71,440 
Bigelovii, Gray 436 
bisulcatus, Gray 442 
Bolanderi, Gray 437 
Bourgovii, Gray 444 
Brazoeusis, Buekl 43(1 
Bre\A-eri, Gray 439 
caispitosus, Gray 445 
calycosus, Toi r 66, 435 
canipostris, Gray 7(i, 445 
Canadensis, L 67, 6-', 436 
( aryocarpns, Kor l:>.) 
vlia todon, Torr 13.) 
Cbamieleuce, Gray 74, 443 
Cobrensia, Gray 436 
collinus, Dougl 414 
Cooperi, Gray 410 
Conltcri, IScntli (id. 135 
Crotalaria', (<v:\\ 441 
cnrtipes, Gray 441 
cyrtoides, Gray 75,444 
decnmbcns, Gray 44i> 
diapliaiiiis, Dougl 446 
(li(lynu)car]iiiM, ll.cV A 4:{6 
ai])liysiis, (iray ''-'n 4:''-» 
(listnrtns, T. A, G i:'"9 
dim-xij''->liii-^.('v:\y 
D()iigl;isii, (ir:iy 411 
DrnnuuoiHlii, Dmigl 43/ 
criocarims. S. \Vats<in 71,440 
Feudli ri, Cms 443 
