reniformis, 211. 
suaveolens, 211. 
tuberosa, 211. 
Calamagrastis canadensis, 159, 166. 
Calamus, 162, 171. 
Caltha palustris, 157, 182. 
Camelina sativa,. 160, 185. 
Campanula americana, 205. 
aparinoides, 205. 
perfoliata, 205. 
rotundifolia, 204. 
Campion, 157, 181. 
Camptosorus rhizophyllus, 164. 
Canada balsam, 161. 
Candy grass, 167. 
Cannabis sativa, 160, 178. 
Capnoides micranthum, 157, 184. 
Capsella bursa-pastoris, 185. 
Cardamine bulbosa, 184. 
hirsuta, 184. 
rhomboidea, 184. 
Carduus allissimus, 211. 
arvensis, 159, 211. 
discolor, 211. 
hilli, 211. 
iowensis, 211. 
lanceolatus, 159, 211. 
muticus, 211. 
Carex albursina, 169. 
amphibola, 169. 
cephalophora, 169. 
cristatella, 170. 
festucacea, 170. 
gravida, 169. 
grisea, 169. 
hystricina, 169. 
laxiflora, 169. 
longirostris, 169. 
lupulina, 169. 
pennsylwanica, 169. 
rosea, 169. 
sparganoides, 169. 
stipata, 169. 
straminea, 170. 
stricta, 169. 
tenera, 170. 
tribuloides, 169. 
vulpinoidea, 169. 
Carpet-weed, 180. 
Carpinus caroliniana, 154, 176. 
Carricn-flower. 172. 
Carter, Mrs. M. C., 148. 
Carya alba. 176. 
amara, 176. é 
Cassia chamaecrista, 160, 189. 
Castalia, 156. 
odorata, 182. 
Castilleja coccinea, 203. 
Catalpa, 155, 156. 
Catechfly. sleepy, 181. 
INDEX. 215 
fe % a 
Catnip, 201. 
Cat-tail, 157, 170. : 
Caulophyllum pralictpoides,, 162," 183. 
Ceanothus americana, 154, 193. © 
‘ovatus pubescens, 154," 193: 
Cedars, 153, 154, 155, 156,/165.. . 
Celastrus scandens,’ 153, 192. 
Celtis crassifolia, 153, 178. ° 
occidentalis, 178. . 
Cenchrus tribuloides, 160,. 166. 
Cephalanthus, 153.5 
Cerastium arvense, 181. 
arvense oblongifowunn, ASL, 
longipedunculatum, 181. 
nutans, 181. 
Chamaenerion angustifolium, 157, 195. 
Cheilanthis feei, 164. 
lanuginosa, 164. 
Chelone glabra, 202. 
Chenopodium album, 160, 180. 
glaucum, 180. 
hybridum, 180. 
Caerry, 153, 154, 155, 189. 
ground, 160. 
Chickweed, 159, 181. 
Chicory, 160, 205. 
Chimaphila umbellata, 161, 197. 
Choke-berry, 188. 
cherry. 154, 156. 
Chrysanthemum leucanthemum, 210. 
Chrysopogon nutans, 165. 
Chrysosplenum alternifolium, 186. 
iowensis, 186. 
Cichorium intybus, 160, 205. 
Cicuta maculata, 196, 
Cinna arundinacea, 159, 166. 
Cinquefoil, 153, 187. 
Circaca alpina, 195. 
lutetiana, 195. 
Clammy-weed, 185. 
Claytonia virginica, 157, 180. 
Cleavers, 203. 
Clematis verticillaris, 183. 
virginiana, 157, 183. 
Clover. 157, 159, 160, 189, 190. 
Club-moss, 164. 
Cnicus altissimus, 211. 
arvensis, 211. 
lanceolatus, 211. 
muticus, 211. 
Cocklebur, 160, 206. 
Coeloglossum bracteatum, 173. 
Cohosh, blue, 183. 
Columbine, 156, 158, 182. 
Comandra umbellata, 178. 
Compass-plant, 209. — 
Cone-flowers, 160, 209. 
Conium maculatum. 196. 
Convolvulus arvensis, 199. 
sepium, 199. 
