-J94 



NDEX OF THE GENERA. 



Briza 56 



Bromus 63 



Buchnera 240 



Cacalia 286 



Cactus 198 



Cakile 246 



Calla 358 



Callitriche 14 



Calopogon 321 



Caltha 224 



Calycanthus 211 



Camelina 248 



Campanula Ill 



Cardamine 248 



Carex 333 



Carpinus 356 



Carya 357 



Cassia 187 



Castanea 355 



Catalpa 20 



Caulinia 330 



Ceanothus 119 



Celastrus 120 



Celtis 132 



Cenchrus 46 



Cephalanthus 78 



Cerastium 193 



Ceratochloa 62 



Ceratophyllum 354 



Cercis , 188 



Chaerophyllum 354 



Cheilanthes 385 



Chelone 243 



Chelidonium 216 



Chenopodium 130 



Chionanthus 17 



Chrysocoma 286 



Chrysosplenium 189 



Chrysanthemum 307 



Cichorium 276 



Cicuta 3 35 



Cimicifuga 219 



Cinna 52 



Circaea 24 



Cissus 121 



Claytonia 119 



Clematis 222 



Cleome 252 



Clethra 1S7 



Clinopodium 236 



Clitoria 271 



Cnicus 281 



Cnidium 134 



Collinsia 241 



Cominelina 35 



Comptonia 349 



Conium 136 



Conostylis 150 



Convallaria 153 



Convolvulus 107 



Conyza '288 



Coptis 225 



Corallorhiza 322 



Coreopsis 312 



Cornus 82 



Corydalis 259 



Corylus 360 



Crataegus 201 



Crotalaria 262 



Crotonopsis 352 



Crypsis 53 



Crypta 24 



Cucubalus 190 



Cunila 22 



Cuphea 200 



Cupressus 361 



Cuscuta 128 



Cynodon 54 



Cynoglossum 102 



Cyperus 42 



Cypripedium * 322 



Dactylis 62 



Dalibarda 208 



Danthonia 62 



Datura 110 



Daucus 135 



Delphinium 218 



Dentaria 248 



Dianthus 190 



Diapensia 110 



Diervilla 113 



Digitaria 72 



Diarrhena 62 



Diodia 80 



Dioscorea 374 



Diospyros 375 



Dipsacus 78 



Dirca 170 



Dodecatheon 104 



Dolichos 



Draba 247 



Dracocephalum 236 



Drosera 142 



Dryas 20S 



