224 
Verbena, 160. 
Verbena bracteosa, 200. 
hastata, 200. 
stricta, 200. 
urticifolia, 200. 
Veronia fasciculata, 206. 
Veronica anagallis, 202. 
anagallis-aquatica, 202. 
arvensis, 202. 
peregrina, 160, 202. 
virginica, 202. 
Vervain, 200. : 
Vetch, 158, 190. 
Vetchling, 191. 
Viburnum, 162. 
Viburnum dentatum, 154, 204. 
lentago, 153, 154, 204. 
opulus, 154, 162, 208. 
prunifolium, 162. 
pubescens, 203. 
Vicia americana, 158, 190. 
angustifolia, 191. 
cracca, 190. © 
sativa, 191. 
Viola canadensis, 195. 
palmata, 195. 
papillionacea, 157, 195. 
pedata, 157, 194. 
pedatifida, 157, 194. 
pubescens, 157, 195. 
scabriuscula, 195. 
Violet, 156, 157, 172, 194, 195. 
_ Virginia creeper, 154, 155, 193. 
Virgin’s-bower, 153, 157, 183. 
Vitis riparia, 193. 
vulpina, 153, 193. 
Wahoo, 158, 192. 
INDEX. 
Wake-robin, 158, 172. 
Walnut, 153, 155, 156, 175. 
Washingtonia claytoni, 196.. 
Water crow-foot, white, 156, 183. 
Water-leaf, 158, 199. 
Water-plantain, 170. 
Wheat-grass, 168. 
Whitlow-grass, Carolina, 185. 
Willow, 158, 154, 155, 175. 
Willow-herb, 157, 195. 
Winneshiek county, annotated list of 
plants, 162. 
. flora of, 147. 
forest 
150. 
medicinal 
161. 
problems, 
plants, 
fi trees and shrubs, 
153. 
Wintergreen, 197. 
Wolf-berry, 154, 204. 
Woodsia ilvensis, 163. 
Wood-sorrel, 191. 
‘Wool-grass, ‘169. 
Wormwood, 210. 
Xanthium canadense, 206. 
; echinatum, 160, 206. 
Xanthorylum americanum, 154, 
Yam root, 173. 
Yarrow, 210. 
Yew, American, 153, 165. 
Zizia aurea, 196. 
Zygadenus elegans, 171. 
162, 
