Chess, 55 
Early, 58 
Slender, 58 
Soft, 57 
Chickweed, Common, 139 
Common Mouse-ear, 141 
Field Mouse-ear, 140 
Forked, 134 
Germander, 387 
Indian, 135 
Poison, 311 
Red, 311 
Whorled, 135 
Chicory, 525 
Children’s Bane, 301 
Chinaman’s Greens, 120 
Chondrilla juncea, 534 
Chrysanthemum Balsamita, 494 
Leucanthemum, 493 
Chrysopsis mariana, 422 
villosa, 423 
Chufa, 70 
Cichorium Intybus, 525 
Cicuta maculata, 300 
Cinquefoil, Common, 209 
Norway, 205 
Shrubby, 207 
Silvery, 206 
Circium altissimum, 512 
arvense, 514 
lanceolatum, 510 
ochrocentrum, 513 
pumilum, 512 
Clayweed, 501 
Cleavers, 397 
Cleome, Pink, 199 
Cleome serrulata, 199 
Climath, 274 
Cling Rascal, 397 
Clinopodium vulgare, 359 
Clotbur, 461 
Clover, Black-seeded Hop, 234 
Bokhara, 232 
Bur, 235 
Bush, 245 
Cabul, 232 
Cat's, 237 
Clammy, 198 
Devil, 387 
Hare-foot, 229 
Hart's, 234 
Hop, 231 
INDEX 575 
Clover, — Continued 
King's, 234 
Old Field, 229 
Pin, 258 
Pussy, 229 
Rabbit-foot, 229 
Spiny, 460 
Stinking, 198, 199 
Stone, 229 
Tree, 232 
Clown’s Heal, 357 
Cnicus benedictus, 522 
Cocash, 435 
Cockle, China, 151 
Clammy, 147 
Corn, 142 
Cow, 151 
Pink, 151 
Purple, 142 
Spring, 151 
Sticky, 147 
. White, 145 
Cocklebur, 461 
Dagger, 460 
Spiny, 460 
Coffee, Magdad, 220 
Negro, 220 
Wild, 401 
Colewort, 538 
Coltsfoot, 501 
Sweet, 502 
Comfrey, 337 
Cone-flower, Long-headed, 464 
Prairie, 464 
Purple, 463 
Conium maculatum, 300 
Conringia orientalis, 189 
Convolvulus arvensis, 321 
sepium, 323 
Copper-leaf, 262 
Coreopsis lanceolata, 471 
tripteris, 472 
Corispermum hyssopifolium, 116 
nitidum, 116 
Corn Flower, 520 
Corn Salad, 402 
Coronopus didymus, 179 
Costmary, 494 
Coughwort, 501 
Cowbane, Spotted, 300, 301 
Cow-bell, 148 : 
Cow-bind, 321 
