INDEX. 
434 
Celtis, ioo 
Cembra Pines, 8 
Cenchrus, 22 
Centaury, 265 
Cerastium, 128 
Cerasus, 193 
Ceratophyllacee, 134 
Ceratophyllum, 134 
Cercocarpus, 189 
Cereus, 238 
Ch&nactis, 378, 380 
Chcetochloa, 21 
Chamcechcenactis, 380 
Chamcecrista, 194 
Chamcenerion, 241 
Chamcerhodos, 187 
Chamcesaracha, 302 
Chamcesyce, 222 
Cheat ( Bromus ) 
Cheilanthes, 3 
Cheiranthus, 159 
Chenopodiacee, 113 
Chenopodiales, 113 
Chenopodium, 114 
Cherries, 193 
Chess, 51 
Chick-weed, 127 
Chick-weed, Mouse-ear, 128 
Chick-weed Family, 127 
Chicory, 404 
Chicory Family, 402 
Chimaphila, 2 58 
Chionophila, 311 
Chives, 81 
Chlorides, 35 
Chondrophylla, 266 
Chrysanthemum, 382 
Chrysopogon, 20 
Chrysopsis, 339 
Chrysosplenium , 171 
Chrysothamnus, 340 
Chylisma, 247 
ClCHORIACEE, 402 
Cichorium, 404 
Cicuta, 252 
Cinna, 30 
Cinquefoil, 180 
Cinqufoil, Shrubby, 187 
Circcea, 248 
Cirsium, 401 
Cistacee, 232 
Cladothrix, 121 
Claytonia, 125, 126 
Clematis, 141, 142 
Cleome, 168 
Cleomella, 168 
Clementsia, 170 
Clinopodium, 299 
Cloak-Fern, 4 
Closed Gentian, 266 
Clover, 200 
Clover, Prairie, 215 
Clover, Sweet, 202 
Clubmoss, 6 
Clubmoss Family, 6 
Clubmoss, Little, 6 
Club-rush, 58 
Cnemidophacos, 207 
Cnicus, 400 
Cockle ( Vaccaria ) 
Cocklebur, 329 
Cock-spur, 22 
Cockspur-grass, 21 
Cceloglossum, 87 
Coleogyne, 189 
Coleosanthus, 335 
Collinsia, 305 
Collomia, 276, 279 
Colop ter a, 257 
Colorado Rubber Plant, 380 
Coltsfoot, Sweet, 387 
Columbine, 136 
Comandra, 101 
Commelina, 75 
Commelinacee, 75 
Cone-flower, 371, 372 
Conioselinum, 255 
Conringia, 166 
CONVALLARIACEAE, 83 
CONVOLVULACEE, 273 
Convolvulus, 273 
Conyza, 366 
Coral-berry, 323 
Corallorrhiza, 90 
Coral-root, 90 
Cord-grass, 35 
Coral-vine (Cuscuta) 
Cordylanthus, 318 
Coreopsis, 374 
Coriospermum, 119 
CoRNACEE, 249 
Cornel, 249 
Cornelia, 249 
Cornus, 249 
CORRIGIOLACEE, 1 21 
Corydalis, 149 
CORYLACEE, 97 
Corylus, 9 7 
Cotton-grass, 58 
Cottonwood, 91 
Cotton-weed ( Epilobium ) 
Covillea, 221 
Cow-bane, (Cicuta) 
Cow Cabbage (Heracleum) 
Cow Cockle ( Vaccaria ) 
Cow-herb, 134 
Cow Parsnip (Heracleum) 
Cowslip, American, 263 
Crab-grass, 20 
Crab-grass, Wild, 36 
