INDEX. 
Page. 
Ranunculus Flaiuniiila, L , 7 
gliibciTiuius, Jlook 8 
limoHus, Nutt 8 
macrautbus, Sclieele 9 
multifidns, Pursh 8 
nivalis, E. Br 8 
ortlioiLj^uchus, Hook 9 
repens, L 9 
sceleratus, L 8 
Ehamne^ 51 
Rhus aromatica, Ait 53 
glabra, L 52,419 
Toxicodendron, L 53 
tnlobaia, Nutt 53 
Ribes aureuni, Purslx 100 
bracteosum, Doiigl 99 
cereum, Dnugl 99 
ghditiosnm, Bentli 100 
hirtellum, Mx 97 
irrigunin, Dougl " 98 
lacustre, Poir 98,99 
lei)tantlium, Gray 98 
nialvaccuui, Sni 100 
prostratuni, L'Her. 99 
sanguiueuni, Pursli 1 100 
sefosum, Dougl 99 
viscoisissinium, Pursli 100 
Eiccia crystalliua, L 411 
glauca, L 411 
Rigiopappus, Gray 17(5 
leptocladus, Gray 17R 
Rinodia sopliodes, (Ach., Nyl.) 413 
Robinia Neo-Mexicana, Gray 419 
Rosa blanda, Ait 91 
fraxinifolia, Berk 92 
RuniACE^ 134 
Rubus leucodennis, Dongl 82 
Nutkanus, M05 81 
strigosus, Mx 82,420 
Rndbeckia occideutalis, Nutt 168 
Rumex aqnaticus, L 314 
BritaiHiica, L 314 
E)ifjeJmf(Hni, Ledob 314 
bastatulns, Bald 314 
1ia><t>ilatus, Sni ;«!.■) , 
longifolins, DC i 
nuiritimus, L 314 , 
paucifolins, Nutt 314 
salicitulius, Weinm 314 
vt uosus, I'ursh 313 
RUTACE.E TjO 
Sagiua Linnad, Prtvsl 41 
nivalis, Fries 42 
Sagittaria variabiii.s, Eiig ••!!• 
Salazaria, Torr 237 
Mexicana, Torr 237 
SAEICACEiE -'21 
Salicornia fruticona, L 2'.t4 
hcrbaoea, L 293 
Salix artica, R. Br 326 
06 
Salix cordata, Muhl 
glauea, L 
Hind.siana, Bontli , 
longifolia, Mnh] 
I)Lleboi)by]la, And 
reticulata, L 
Sahola depressa, Pursli 
lincarh, Ell 
►Salvia Columbariin, Bontli 
Sauibucus Canadensis, L 
glauea, Xntt 
ptilun-s Mx 
ract'iiiosa, L 
Samolus Yalcrundi, L 
Saxtai.ack.i: 
Sai'ixdack.i; 
Saponaria Vaccavia. L 
Sarcobatus, NtMs , 
vernuculaf IIS, Torr 
Saturoia bortonsis, L 
SAriUHACE/E 
Saxifraga adscciidciis. L 
((■s/ir</'l.'<, Fis<'li 
ca'.siiilosa, L. 
con/ron rw, .Sf orub 
tIagclJaris, Willd 
intcgrifolia, Hook 
nivalis, L 
punctata, L 
rivularis, L , 
]7r/y//(i' yi.sJ.s, Mx 
Saxifrage.k 
Sclioberia, C A. Mey 
occideutalis, S. Watsou 
SclioUcra graniinca, Willd 
Scirpus niaritinuis, L 
microcarpiis. Prcsl 
Nevadcnsis. H. Watson 
Torrcyi, Oincy 
validns, Vaiil 
Sclcrochloa ('aliCuriuCa, Munro 
8cro]>hularia iioddsa, L , 
iSci;<)Fi(( LAK/A( i;.(; 
Scutellaria })riiiiiintiii<lii, Bi-ntli 
galeiiciil.ila, L 
rrsiiiosa. Torr 
,Sed)iJji dfbile. S. Watsui) 
rliixlanf liuiii, (Way 
Pbodiola. IM" 
steiiiijH taliiiii. I'ursh 
Torn iji. Dun 
Selaginelia nipestiis. Spring 
Si lii!()( arpus, (iray 
aii;;iistil'nli!is. dray . . 
clH'n(ipodi(]idi s, dray 
diiTusus, dray 
Seliinun, L 
(■a]>it« Iiatii!ii, lieiirh. A lUn 
Kiimii, S. ^\'at.-.|lll 
Scnecio auiplectcns, (jray 
