222 
Robinia pseudacacia, 155, 190. 
Rock-cress, 185. 
Rocket, purple, 184. 
Roripa armoracia, 184. 
‘nasturtium, 184. 
palutris, 184. 
Rosa arkansana, 154. 
blanda, 154, 187. 
humilis, 154, 188. 
‘sayi, 188. 
woodsti, 188. 
Rose, 154, 155, 187, 188. 
Rubus americanus, 186. 
canadensis, 187. 
nigrobaccus, 162. 
occidentalis, 152. 154, 161, 187.- 
procumbens, 154. 162, 187. 
Strigosus, 154, 161, 186. 
triflorus, 186. 
villosus, 187. 
Rudbeckia hirta, 209. 
laciniata, 160, 209. 
triloba, 209. 
Rue, goat’s, 190. 
Rue-anemone, 157, 182. 
Rumeax acetosella, 160, 179. 
altissimus, 179. 
brittanica, 160, 179. 
erispus, 15S, 179. 
patientia, 160, 179. 
verticillatus, 179. 
Rush, 169, 171. 
Rush-grass, 166. 
Rye, wild, 168. 
Sage, wood, 200. 
Sagittaria latifolia, 170. 
rigida, 170. 
St. John’s-wort, 160, 194. 
Salicin, 162. 
Salix alba, 175, . 
amygdaloides, 158, 175. 
cordata, 153, 175. 
discolor, 153, 175. 
ericocephala, 175. 
humilis, 154, 175. 
interior, 153, 175. 
longifolia, 175. 
lucida, 153, 175. 
missouriensis, 175. 
nigra, 1538, 174. 
petiolaris, 175. 
Salomonia commutata, 157, 172. 
Salsola kali, 180. : 
tragus, 160, 180. 
Sambucus canadensis, 158, 161, 208. 
pubens, 154, 208. 
racemosa, 203. 
Sandbur, 160, 166. 
INDEX 
Sanguinaria canadensis, 158, 162, 184. 
Sanicle, 196, 206. . 
Sanicula marylandica, 196 
Saponaria officinalis, 181. 
vaccaria, 181. 
Sarsaparilla, wild, 195. 
Savage, T. E., cited, 148, 149.. 
Savifraga pennsylvanica, 185. 
Saxifrage, 185, 186. 
Scirpus americanus, 169. 
atrovirens, 169. 
cyperinus, 169. 
iacustris, 169. 
pungens, 169. 
validus, 169. 
Teouring-rush, 163. 
Scrophularia marylandica, 160, 202. 
Scutellaria cordifolia, 200. 
laterifiora, 161, 200. 
parvule, 200. 
versicolor, 200. 
Sedges, 169, 170. 
Selaginella runestris, 164. 
Senecio awrews, 211. 
balsamitae, 211. 
Senega, 162. 
Setaria germanica, 166. 
glauca, 159, 160, 166. 
italica, 166. 
viridis, 160, 166. 
Shadbush, 153, 188. 
Sheep-berry, 158, 155, 204. 
iueep sorrel, 160, 179. 
Shepherd’s purse, 159, 185. 
Shimek, B., cited, 148, 149. 
Flora. of Winneshiek coun- 
: ty, 147: 
Shooting star, 156, 157. 
Sibbaldiopsis tridentata, 187. 
Sickle-pod, 185. 
Sieversia ciliata, 187. 
Silene alba, 181. 
antirrhina, 181. 
stellata, 157, 181. 
Silphium laciniatum, 209. 
perfoliatum, 209. 
‘Sinapis alba, 184. 
nigra, 161. 
Sisymbrium canescens, 185. 
officinale, 160, 184. 
Sisyrinchium angustifolium,.157, 173. 
Sium cicutaefolium, 196. 
Skull-cap, 200. 
Smartweed, 160, 179. 
Smilacina racemosa, 172. 
stellata, 172. 
Smilax, upright, 172. 
Smilax ecirrhata, 172. 
herbacea, 172. 
hispida, 154, 172. 
