IOT)EX. 
507 
Page. 
Centrostegia leptoceras, Gray 476 
Cerastium arvense, L 38, 417 
nutans, Raf. 38 
vulgatum, L 38 
Cerasus demissus, Nutt 80 
eniarg'matus, Dougl 79 
mollis, Dougl 79 
Ceratochloa breviaristata, Hook 389 
Ceratodou purpureus, Dill 400 
Ceratophyllace^ 319 
Ceratopliyllum demersum, L 319 
Cercocarpus, HBK 82 
breviflorus, Gray 83 
ledifolius, Nutt 83,420 
parvifolius, Nutt 82 
Cereus, Eng 117 
Engelmanni, Parry 117 
viridiflorus, Eng 118 
Chseuactis, DC 171 
achille<efolia, H. & A 172 
carphoclinia, Gray 172 
Douglasii, H. «fe A 172 
macrautha, D. C. Eaton 171 
steVioides, H. & A 172, 424 
Xantiana, Gray 171 
Cliara, Ag ^98 
foetida, A. Br 398 
fragilis, Desv 398 
vulgaris, Auct 398 
Charace^ 
Cheilantlies lanuginosa, Nutt 395 
Cheirantlius, L 14 
Menziesii, Benth. & Hook 14 
Chenopodiace^ ^"^7 
Chenopodina depresm, Moq 294 
linearis, Moq 295 
Chenopodium album, L 28i 
Botrys, L 288 
Frdmonti, S. Watson 287 
himile, Hook 288 
hybridum, L 287 
Chimaphila umbellata, Nutt 212 
Chorizanthe, R. Br 312, 47G, 484 
brevicornu, Torr 312,484 
Californica, Gray 485 
corrugata, T, & G 485 
diffusa, Benth 484 
Douglasii, Benth 484 
fimbriata, Nutt •'^^ 
laciniata, Torr ' 
membranacea, Benth 4^4 
perfoliata,(;r;)y 312,485 
polygouoich^s, T. G 485 
pidcniubt'iis. Nutt 484 
pungens, Beutli 4-4 
rigida, Torr 4- > 
staticoides, Benth 4-4 
stellulata, Benth 484 
uniaristata, T. *fc G 484 
Watsoni, T. & G 313,485 
Page. 
Chrysopsis canescens, T. »fe G 164 
ecMoides, Benth 164 
folioaa, Nutt 164 
hispida, DC 164 
villosa, Nutt 164,422 
Cicuta niaculata, L 121 
Circa»a alpina, L 113 
Cirsium aetaili , (nay 195 
Coultvri, Harv. cV (;ray 195 
Drummondii, T. &. (i 195 
ediih; Nutt 134 
erioci'uluilinii, ( iray 196 
foliosum, DC 194 
undulatnin, Spreug l-'l, 422 
Cladonia liinbriiit;), Fi-. 413 
pyxidata, Fi 413 
Clarkia, Pursh - 104 
rhomboidea, Doug] 104 
Clavaria aurea, SchadV 414 
forrnosa, Pers 414 
fumosa, Pers 414 
Claytonia aqiMtica, Nutt 43 
arctica, Adams 43 
Caroliniaua. Mx 42 
Chamissonis, Ksdi. A Ledeb 43 
lanceolata, Pursh 42 
perfoliata, Don 43 
umbellata, S. "Watson 43 
Cleome, L '^2 
aurea, Nutt 32 
integrifolia, T. »fc G 32 
luteu, Hook 32 
sparsifolia, S. Watson 32 
? 32 
Cleomella, DC 
angnstifolia, Torr 33 
]on;iij»'s, Tnir 33 
:ilrxi<-.nia. DC 33 
parvidoia, Grny '•'>'■' 
])]ocas]>erma, 8. Watson 33 
ti'lnliJ'i>Ua ^ 
Clematis ali)ina. Mill * 
< 'oliimhicuiii. T. AC 4 
Douglasii, Hook 3 
ligusticifoli:!. Nutt -. 3 
(klioteriHis. \'it\v 4 
Sihiriea, Mil! 4 
v.MticillMiis. DC 4 
W ijtthi'i. Nutt 
(Tnifonia. Liiidl 2tt8 
Cohlrnia, C 
canescens, DC 21/ 
hispidissinia, (ir:\\ -1' 
Nnttallii. Hook -MT.-JH 
Palirii'ri, (irny 248 
])r()( UiMl>{'n8, L 247 
Collinsia parvillora, Dougl 216 
Collomia. Xutt 261,462,464 
t ';i\ anillosiana, Don 4''-» 
gilioidfs, B<-nth 464 
