226 



INDEX OF GENERA. 



Ballota 79 



Bambusina 215 



Bangia 209 



Baptisia 27 



Barbaria 9 



Barbula 144 



Bartonia 65 



Bartramia 147 



Batrachospermum... 210 



Berberis 5 



Beta 133 



Betula 90 



Biatora 165 



Bidens ,51,131 



Bigelovia 49 



Blepharostoma 157 



Blepbarozia 156 



Blitum 81,133 



Bcehmeria 87 



Boletus 170 



Bouteloaa 119 



Bostrychia 204 



Botrychium . , 138 



Botrytis 187 



Bovista 176 



Brachyelytrum 118 



Brachythecium 151 



Brasenia 5 



Brassica 10,128 



Breweria 69 



Briza 134 



Brizopyrum 120 



Bromus 122 



Brucbia 141 



Brunella 78 



Bryopsis 208 



Bryum 146 



Buellia 166 



Bulbochfete 211 



Bulgaria 194 



Bupleurum 39, 130 



Buthalmum 131 



Buxbaumia 148 



Cacalia 54 



Cakile 11 



Calamagrostis 118 



Calamintba 77 



Calendula 131 



Calicium 166 



Calla 101 



Callithamnion 207 



Callitriche 34 



Calluna 126 



Calocera 175 



Calocylindrius 216 



Caloglossa 206 



Calopogon 96 



Calothrix 209,220 



Oaltha 3 



Galycera 131 



Calypogeia 156 



Camelina 10 



Campanula 58 



Campsotricbum 188 



Camptosorus 136 



Camptothecium 150 



Campylostelium 143 



Cannabis 87 



Cantharellus 170 



Capnodium 203 



Capsella 10 



Cardamine 8 



Cardiospermum 129 



Carduus 54, 131 



Carex 112,127 



Carpinus 90 



Carum 130 



Carya 87 



Cassandra 59 



Cassia 27,130 



Castagnea 207 



Castanea 89 



Castilleia 73 



Catalpa 74 



Caulophyllum 5 



Ceanothus 22 



Celastrus 21 



Celeochaste.... 210 



Celosia 133 



Celtis 86 



Cenangium 194 



Cenchrus 125 



Cenia 131 



Centaurea..„ 54, 131 



Cephalanthus 43 



Cephalozia 155 



Ceramium 206 



Cerastium 16 



Ceratium 185 



Ceratodon 143 



Cer atophyllum 91 



Ceratostoma 202 



Cercis 27 



Cetraria 159 



Chgerophyllum....40, 130 



Chaetomorpha 209 



Chnatomium 190 



Chaetophora 211 



Chanuelirium 104 



Champia 205 



Chantransia 210 



Chara 204 



Characium 213 



Cheilanthes 135 



Chelidonium 7 



Chelone 70 



Chenopodium 80, 133 



Chimaphila 61 



Chiloscyphus 156 



Chiogenes 59 



Chlorosplenium 192 



Chondrioderma 177 



Chondriopsis 205 



Cbondrus 206 



Chorda 207 



Chordaria 207 



Chroococcus 223 



Chroolepus 212 



Chrysanthemum .... 131 



Chrysoplenium 33 



Chrysopsis 49 



Cichorium 55, 131 



Cicuta 39 



Cimicifuga 4 



Cinna 117 



Circasa 35 



Cirsium 54,126 



Cladium 112 



Cladonia 164 



Cladophora 209,212 



Cladosporium... 187 



Cladostephus 208 



Cladothrix... 133 



Clasterisporium 187 



Clavaria 175 



Claytonia 17 



Clematis 1 



Clethra 60 



Climacium 150 



Clintonia 103 



Clitocybe 168 



Clitoria 27 



Closterium 216 



Cnicus 131 



Coelastrum 213 



Coleosporium 184 



Collema 162 



Colletotrichum 189 



Collinsonia 77 



Collybia 168 



Comandra 85 



Commelyna 107 



Comptonia 88 



Conferva 212 



Coniotherium 178 



Conium 40 



Conobea 71 



