156 



Castanea, 84 

 Castilleja, 137 

 Catalpa. 138 

 Catharinea, 53 

 Ceanothus, 115 

 Celastras, 114 

 Celtis, 85 

 Cenchrus, 64 

 Centaur ea, 154 

 Cephalanthus, 139 

 Cephalozia, 48 

 Ceratium, 17 

 Cerastium, 92 

 Ceramium, 1 6 

 Ceratiomyxa, I 

 Ceratodon, 50 

 Ceratophyllum, 93 

 Cercis, 105 

 Cercospora, 32 

 Cetraria, 45 

 Chaerophyllum, 121 

 Chaetomium, 30 

 Chaetomorpha, 7 

 Chaetophora, 6 

 Chaetosphaeria, 30 

 Chamaecyparis, 60 

 Charaaedaphne, 124 

 Chamaeliriura, 76 

 Chamaemrion, 119 

 Champia, 13 

 Chelone, 136 

 Chelidomum, 97 

 Chenopodium, 88 

 Chiloscyplius, 48 

 Chimaphila, 123 

 Chiogenes, 125 

 Chionanthus, 127 

 Chlamydomonas, 4 

 Chondria, 13 

 Chondrus, 12 

 Chorda, 1 1 

 Chordaria, lo 

 Chrosperma, 76 

 Chrysanthemum, 153 

 Chrysopsis, 146 

 Chrysosplenium, loi 

 Cichorium, 143 

 Cicuta, 122 

 Cimicifuga, 94 

 Cinna, 65 

 Circaea, 120 

 Circinella, 28 

 Cladium, 71 

 Cladonia, 43 

 Cladophora, 7 

 Cladosporium, 32 

 Cladostephus, 9 

 Cladothrix, 27 

 Cladrastris, 106 

 Clathrocystis, 17 

 Clavaria, 37 



Claytonia, 90 

 Climacium, 55 

 Clitocybe, 41 

 Clitoria, 108 

 Clematis, 95 

 Cleome, 99 

 Clethra, 123 

 Closterium, 2 

 Cocconeis, 22 

 Coelastrum, 5 

 Coelosphaerium, 17 

 Coleosporium, 34 

 Collema, 46 

 Collybia, 41 

 Comandra, 86 

 Comatricha, I 

 Commelina, 75 

 Comptonia, 82 

 Conferva, 6 

 Conium, 1 21 

 Conocephalum, 47 

 Conotrema, 46 

 Convallaria, 78 

 Convolvulus, 129 

 Coprinus, 41 

 Corallina, 17 

 Corallorhiza, 81 

 Cordyceps, 30 

 Corema, 113 

 Coreopsis, 152 

 Cornus, 122 

 Coronilla, 107 

 Coronopus, 97 

 Cortinarius, 40 

 Corylus, $$ 

 Coscinodiscus, 20 

 Cosmarium, 2 

 Cracca, 107 

 Crataegus, 104 

 Crotalaria, 106 

 Craterellus, 37 

 Crucibulum, 42 

 Cunila, 133 

 Cuscuta, 130 

 Cyathus, 42 

 Cyclomyces, 39 

 Cyclotella, 19 

 Cylindrothecium, 55 

 Cymatopleura, 26 

 Cymbella, 25 

 Cynanchum, 129 

 Cynoglossum, 130 

 Cyperus, 69 

 Cypripedium, 79 

 Cystoclonium, 12 

 Cytisus, 106 



nACTYLIS, 67 

 ^ Daedalia, 38 

 Daldinea, 31 

 Danthonia, 66 



Darluca, 23 

 Dasya, 14 

 Dasystoma, 137 

 Datura, 135 

 Daucus, 120 

 Decoden, 118 

 Delesseria, 13 

 Derniga, 122 

 Delphinium, 94 

 Dermocybe, 40 

 Deschampsia, 66 

 Desmarestia, 9 

 Desmidium, 3 

 Dentaria, 99 

 Dianthufe, 9 1 

 Diatoma, 21 

 Diatrype, 31 

 Dichelyma, 54 

 Dicksonia, 57 

 Dicladia, 26 

 Dicranella, 50 

 Dicranum, 50 

 Dictyosiphon, 10 

 Dictydium, I 

 Dictyosphaerium, 5 

 Diervilla, 141 

 Digitalis, 137 

 Diodia, 140 

 Dioscorea, 79 

 Diospyros, 127 

 Diphyscium, 54 

 Diplotaxis, 98 

 Dipsacus, 142 

 Dirca, 118 

 Distichlis, 67 

 Diirichum, 50 

 Docidium, 2 

 Dodecatheon, 126 

 Doellingeiia., 150 

 Dondia, 89 

 Dothidea, 30 

 Draba, 99 

 Draparnaldia, 6 

 Drosera, 100 

 Drummondia, 52 

 Dryopteris, 58 

 Duchesnia, 102 

 Dulichium, 69 



|_j AlvyiNiA, 



^■^ Echinobotrys, 32 

 Echium, 131 

 Eclipta, 151 

 Ectocarpus, 8 

 Elachista, 10 

 Eleocharis, 69 

 Eleusine, 67 

 Elymus, 68 

 Encyonema, 25 

 Endocarpon, 46 

 Entoloma, 41 



