INDEX TO ORDERS AXD GENERA. 



PAGE. 



Carya 83 



C aryoph yl 1 aceae . . . . 14 



Cassandra 58 



Cassia 26 



Castanea S6 



Castilleia 69 



Catalpa 70 



Caulophyllum 6 



Ceanothus 20 



Celastraceae 20 



Celastrus 20 



Celtis 82 



Centaurea 54 



Cephalanthus 44 



Cerastium 15 



Ceratophyllaceae. . . Si 



Ceratophyllum Si 



Chaerophyllurn 39 



Chamaeliriuin 100 



Chelidonium 7 



Chelone 67 



Cheuopodiaceae 75 



Chenopodium 75 



Chimaphila 59 



Chiogenes 58 



Chrysanthemum 53 



Chrysopogon 123 



Clirysosplenium 34 



Cichorium 54 



Cicuta . 39 



Cimicifnga 5 



Cinna 125 



Circaea 38 



Cirsium . . 54 



Cist aceae 12 



Cladium no 



Claytonia 16 



Clematis 1 



Clintonia 99 



Cnicus 54 



Collinsia 67 



Collinsonia 71 



Co n i ferae 131 



Conioselinum 40 



Conium 38 



Conopholis 69 



C o 11 v o 1 v u 1 a c e ae 65 



Convolvulus 65 



Comandra 80 



Compositas 46 



Comptouia 84 



Coptis 4 



Corallorhiza 93 



Coreopsis 52 



Cornaceae 41 



Cornus 41 



Corylus 85 



Corydalis 8 



Crassulaceae 35 



Crataegus 32 



C ruci ferae 9 



Cryptotaenia 39 



Cucurbitaceae 38 



Cupuli ferae 85 



Cuscuta 66 



PACK. 



Cynoglossum 64 



Cynosurus 127 



Cyju-racese 107 



Cyperus 107 



Cypripedium 96 



Dactylis 127 



Dalibarda 2S 



Danthonia 126 



Daphne So 



Datura 67 



Daucus 40 



Delphinium 4 



Dentaria 9 



Desehampsia 125 



Desmodium 24 



Deyeuxia 125 



Dianthera 70 



Dianthus 14 



Dicentra 8 



Diervilla 44 



Diplachne 126 



Diplopappus 49 



Dipsaceae 45 



Dipsacus 45 



Dirca 80 



Draba 9 



Drosera 36 



D r os er aceae 36 



Dulichium 10S 



Eatonia 126 



Echinocystis 38 



Eehinops 54 



Echinospermum 64 



E 1 ae a g 11 a c e ae 80 



Eleocharis 10S 



Elodea 17 



Elodes 17 



Elymus 130 



Epigaea 58 



Epilobium 37 



Epiphegus 69 



Eragrostis 127 



Erechthites 53 



Ericaceae 57 



Erigeron 50 



Eriophorum 109 



Erysimum n 



Erythrouium 98 



Euonymus 20 



Eupatorium 46 



Euphorbia So 



E u p h o r b i a c e ae So 



Fagopvrum 79 



Fagus S6 



Fedia 45 



Festuca 129 



Ficoideae 38 



Flaerkea 18 



Fragaria 29 



Fraxinus 61 



Fumaria 9 



Fumariaceae S 



Galeopsis 74 



Galium 44 



Gaultiera 58 



