INDEX 



Chaerophyllum procum- 



bens 217 



Chamomile, Fetid. . . .377 



Field 377 



Charlock 127 



Cheeses 195 



Chelone glabra 306 



obliqua 306 



Cherry, Clammy Ground 



296 



Prairie Ground .... 296 



Chervil, Wild 217 



Chestnut, Horse 190 



Chickweed, Common . 82 



Common Mouse-ear 83 



Chicory, Common. . . . 385 



Chiggerweed 377 



Chrysanthemum Balsam- 



itatanactoides 378 



Leucanthemum . . . .378 



Chrysopsis mariana. .346 



villosa 346 



Cichorium Intybus. . .385 



Cicuta maculata 219 



Cinquefoil 152 



Pale 151 



Rough 152 



Rough-fruited 151 



Shrubby 151 



Circaea alpina 213 



intermedia 213 



lutetiana 213 



Cirsium altissimum. . .384 



arvense 384 



lanceolatum 383 



pumilum 383 



Clammy Cuphea 207 



Ground Cherry .... 296 



Clammyweed 136 



Claytonia caroliniana . 89 



virginica 89 



Cleavers 319 



Clematis crispa 107 



Marsh 107 



Pitcheri 107 



Viorna 107 



virginiana 106 



Climbing Bittersweet. 188 



Dogbane 239 



False Buckwheat. . 79 



Rose 156 



Closed Gentian 237 



Clover, Leafy Prairie. 167 



Purple Prairie 166 



White Prairie 167 



White Sweet 163 



Yellow 163 



Yellow Sweet 163 



Cocculus carolinus. . .114 



Cockspur Thorn 149 



Coffee. Wild 322 



Cohosh, Blue 117 



White Ill 



Colicroot 62 



CoUinsia, Narrow-leaved 



303 



verna 303 



violacea 303 



Violet 303 



Collinsonia canadensis 



292 



Columbine, Wild 110 



Comandra Richardsiana 



75 



umbellata 75 



Comfrey, Wild 261 



Commelina communis. 45 

 COMMELINACEAE . 44 

 Common Agrimony. .155 



Blue Violet 201 



Bluets 320 



Boneset 340 



Burdock 382 



Cattail 35 



Chickweed 82 



Chicory 385 



Dandelion 387 



Dodder 251 



Elder 324 



Evening Primrose. .210 



Everlasting 357 



Fleabane 354 



Goldenrod 349 



Groundsel 381 



Hound's Tongue. . .261 



Loosestrife 232 



Lousewort 313 



Mallow 195 



Milkweed 244 



Motherwort 283 



Mouse-ear Chickweed 



83 



Mullein 300 



Nightshade 294 



Pawpaw 113 



Poke 80 



Purslane 90 



Rush 47 



Sneezeweed 375 



Sow Thistle 388 



Sundrops 211 



Sunflower 368 



Thistle 383 



White Water Crowfoot 



96 



Winter Cress 131 



Yarrow 376 



Compass Plant 359 



COMPOSITAE 333 



Composite Family. . .333 

 Conefiower, Brilliant . 364 



Gray-headed 367 



Long-headed 367 



Narrow-leaved Purple 



366 



Pale Purple 366 



Prairie 363 



Purple 366 



Sweet 363 



Tall 365 



Thin-leaved 363 



Yellow 367 



CONVOLVULACEAE.248 

 Convolvulus arvensis . 250 



Family 248 



sepium 249 



pubescens 249 



spithamaeus 250 



Coralberry 322 



Coreopsis palmata. . .371 



tripteris 371 



Corn Gromwell 264 



Mint 291 



Speedwell 310 



Squirrel 122 



CORNACEAE 225 



Cornus alternifolia. . .226 



florida 225 



paniculata 226 



Corpse Plant 227 



Corydalis aurea 123 



Golden 123 



Pale 123 



sempervirens 123 



Corylus americana ... 73 



Costmary 378 



Cow Lily 91 



Parsnip 222 



Cowbane 222 



Cowslip 109 



Virginian 263 



Crab, American 147 



Narrow-leaved 147 



Southern 147 



Wild 147 



Cranesbill, Carolina. .177 



Wild 177 



CRASSITLACEAE. ... 138 

 Crataegus Crus-galli. . 149 



mollis 149 



Creeper, Trumpet. . . .314 

 Creeping Burhead. ... 37 



Waahoo 187 



Yellow Wood Sorrel 175 



Cress, Bank 135 



Bitter 131, 134 



Common Winter. . . 131 



Early Winter 131 



Erect-fruited Winter 



131 



Marsh 130 



Pennsylvania Bitter 



134 



Purple Spring 134 



Rock 135 



Rocket 131 



Smooth Rock 135 



Spring 134 



True Water 130 



Winter 131 



Yellow 131 



Yellow Swamp 130 



Croton, Glandular. . . .181 

 glandulosus septen- 



trionalis 181 



Crowfoot, Bristly. . . 99 

 Common White Water 



96 



Early 98 



Family 95 



Hooked 97 



Small-flowered 97 



StifE Water 96 



Tall 98 



Yellow Water 96 



Crownbeard 370 



Sunflower 370 



CRUCIFERAE 124 



Cryptotaenia canadensis 



220 



Cucumber, One-seeded 



Bur 326 



Wild 327 



195 



