144 



Cassia 60 



Castalia 35 



Castanea 22 



Castilleja 102 



Catchfly 33, 34 



Catnip 98 



Cat-tail 2 



Cat-tail Family 2 



Caulophyllum 40 



Ceanothus 71 



Cedar I 



Celandine 41 



Celandine Poppy 41 



Celastraceae ". . 69 



Celastrus '. 69 



Celtis 24 



Cenchrus 5 



Centaurea 121 



Centaurium 89 



Centaury 89 



Cephalanthus 108 



Cerastium 33 



Ceratophyllaceae 34 



Ceratophyllum 34 



Cercis 58 



Chaerophyllum 83 



Chamaedaphne 86 



Chamaelirium 13 



Charlock 44 



Cheat 7 



Chelidonium 41 



Chelone 104 



Chenopodiaceae 28 



Chenopodium 28, 29 



Cherry 54 



Cherry, Ground 101 



Chervil 83 



Chestnut 22 



Chickweed 32, 33 



Chickweed, Mouse-ear 33 



Chicory 115 



Chimaphila 85 



Chiogenes 85 



Chives, Wild 13 



Chokeberry 55 



Choke Cherry 54 



Chrysanthemum 121, 130, 131 



Chrysosplenium , .. 5 



Cichorium 115 



Cicuta 82 



Cimicif uga 39 



Cinquefoil 52, 56, 57 



Circaea 



Cirsium 117, 



Cistaceae 



Cladium 



Clammy Locust 



Clammy-weed ' 



Claytonia 



Clearweed 



Cleft Phlox 



Clematis 



Climbing Fumitory 



Climbing Rose 



Clintonia 



Clover 



Clover, Bush 61 



Clover, Hop 



Clover, Prairie 



Clover, Sweet 



Cocklebur 



Cockle, Corn 



Coffee-tree 



Cohosh, Blue 



Colic-root 



Collinsia 



Collinsonia 



Coltsfoot 122, 



Columbine 



Comandra 



Comf rey 93 



Commelina 



Commelinaceae 



Common Blue Violet 



Common Cat-tail 



Common Vetch 



Compass Plant 



Compositae 



Composite Family 



Coneflower, Gray-headed 



Coneflower, Purple 



Conioselinum 



Conium 



Conopholis 



Conringia 



Convolvulaceae 



Convolvulus 91 



Coptis 



Corallorhiza 



Coral Root 



Coreopsis 123, 



Corispermum 



Cork Elm 



Cornaceae 



78 

 118 



74 

 S 



58 

 47 

 34 

 24 

 92 



52 

 13 

 61 



,63 

 60 

 60 

 61 



114 

 33 

 58 

 40 



13 

 104 



95 



130 



36 



24 



,94 



9 



9 



76 



2 



59 



127 



"3 

 H3 

 128 



131 

 83 

 83 



1 06 

 42 

 9i 



,92 

 39 

 16 

 16 



124 

 28 

 24 

 83 



