216 INDEX. 
Corallorhiza multifiora, 174. Datura, 159. 
Coral-root, . 174.. Delphinium azureum, 182. 
Coreopsis palmata, 210. carolinianum, 182. 
Cornus alternifolium, 153, 197. Dentaria laciniata, 184. 
amomum, 153. Deringa canadensis, 196. 
asperifolia, 153. Desmodeum acuminatum, 190. 
candidissima, 154, 196. parvifiorum, 190. 
circinata, 153, 196. Dewherry, 154, 187. 
paniculata, 196. Dicentra canadensis, 184. 
stolonifera, 158, 196. cucullaria, 184. 
Corydalis micrantha, 157, 184. Diervilla, 154. 
Corylus americana, 153, 176. Dioscorea villosa, 173. 
rostrata, 176. wvirca palustris, 153, 195. 
Cottonwood, 153, 155, 156, 174. Ditchmoss, 170. 
Couch-grass, 168. Dock, curly, 159, 160, 179. 
Crab-apple, 153, 155, 188. vodders, 160, 199. 
Crab-grass, smooth, 165. Dodecatheon meadia, 156, 157, 197. 
Cracca virginiana, 190. Doellingeria humilis, 209. 
Cranberry, bush, 154, 203. umbellata, 209, 
Crane’s-bill, 157, 191. Dogbane, 198. 
Crataegus, 153. Dog-fennel, 159, 210. 
coccinea, 188. Dogwood, 153, 154, 155, 196. 
crus-galli, 188. Doorweed, 179. 
macracantha, 189. Draba caroliniana, 185. 
punctata, 188. Dragon-head, 201. 
tomentosa, 189. root,. 171. 
Cratty, R. I., cited, 148. Dropseed, 166. 
Cress, 184. Drymocallis arguta, 187. 
Crowfoot, 183. Duckweed, 171. 
Cryptogramma stelleri, 164. Dutchman’s breeches, 184. 
Cryptotaenia canadensis, 196. 
Culver’s root, 202. Eatonia pennsylvanica, 167. 
Cup-plant, 209. Echinocystis lobata, 204. 
Currants, 153, 155, 186. Hel-grass, 170. 
Cuscuta cephalanthi, 160. 199. Elder, 153, 154, 155, 203, 205. 
glomerata, 199. Elecampane, 209. 
GOMOD: Ellisia nyctelea, 199. 
paradoxa, 160, 199. Elm, 153, 154, 155, 156, 178. 
Cut-grass, rice, 166. Elocharis ovata, 168. 
Cynthia, 205. palustris, 168. 
Cyperus, 168. Elodea canadensis, 170. 
Cyperus diandrus 168. Elymus canadensis, 168. 
esculentus, 168. hystrix, 168. 
filiculmis, 168. : robustus 168. 
Schweiniteii, 168. striatus, 168. 
Cypress, 168, Enothera biennis, 195. 
Cypripedium, 157. : serrulata, 195. 
candidum, 173. Epilobum adenocaulon, 195. 
hirsutum, 162, 173. angustifolium, 195. 
parvifiorum, 162, 173. coloratum, 195. 
pubescens, 173. Equisetum arvense, 163. 
reginae, 178. hyemale, 163. 
spectabile, 173. laevigatum, 163 
Oystopteris bulbifera, 158, 163. robustum, 163. — 
fragilis, 157, 163. Eragrostis frankii, 167. 
Dactylis glomerata, 159, 160, 167. ae 
Riba 208; 21 Erechtites hieracifolia, 160, 211. 
Dandelion, 159, 205. Brigeron, oil of, 161. 
Dasiphora fruticosa, 153, ‘187. 
