2S8 



INDEX 



Bread mould, 80 

 Broccoli, 112 



Brousoneiia papyrifera, 163 

 Brown eyes, 69 

 Brown, Lady Isabel, 135 

 Brussels sprouts, 112 

 Bryophytes, 127 

 Bucholz, 127 

 Bud-sport, 114 

 Bulbils, 16 



Cabbage, wild, 112 

 Cacti, thornless, 113 

 Calanwphyta, 245 

 Calla, 80 



Camptosorus rhizophyllus, 15, 17 

 Canary Islands, i6i 

 Cannabis sativa, 163 

 Capsella Bursa-pastoris, 95 

 Castalia flava, 179 



tetragona, 158 

 Cauliflower, 112 

 Ceylon, 14s, 150 

 Character-units, 64 



versus unit-characters, 65 

 Chromatin, 36, 73 

 CJiromosomes, 37 

 Chrysanthemum leucanthemum, 154 

 Cinnamon fern, I2 

 Classification, 121 



evolution and, 122 

 Clayton's fern, 13 

 Cliff-cabbage, 124 

 Clover, 113 

 Coal balls, 204 

 Cocos Island, 143 

 Coleoptile, 324 

 Cone-flower, 114 

 Cordaitales, 233 

 Cordaites, 232 

 Corsica, 144 

 Cotyledonary ring,' 2 2 2 



Cross-fertilization, 25 

 Crossing, increased vigor from, 6g 

 Crossotheca Eoeninghausi, 202 _ 

 Cultivation, escapes from, 163 

 Cultures, pedigreed, 59 

 Curve of frequency, 106 

 Cycadeoidea, 212, 214, 220 



dacotensis, 208, 209, 210, 213, 

 219 



Dartoni, 216 



ingens, 215 



Wielandi, 213, 214 

 Cycadocephalus Sewardi, 208 

 Cycadofilicales, 201, 207 

 Cycas circinalis, 212 

 Cyrlomium falcatum, 9 

 Cystopteris htdlifera, 16 



Darwin, Charles, 90, 91 

 Darwinism, 90, 92 



mutation theory to, 118 

 De Candolle, 144 

 Dendrobium attenualum, 147 

 Dendroceros. 174 

 Determinants, 75 

 Determiner, 64 

 de Vries, Hugo, 74, loi, 102 

 Diapensia lapponlca, 162 

 Dicotyledons, monocotyledonous, 



226 

 Dicotyledony, origin of, 220 

 Dictyola, 13s, 137 



dichotoma, 136 

 Diervilla, 154 



Lonicera, 155 



rivularis, 155 



sessilifolia, 155 

 Differentiation, Dorso-ventral, 20 

 Dionaea muscipula, 178, 179 

 Dioscorea bonariensis, 226, 227 

 Diplazivm zelanicunt, 7 

 Diploid, 2S, 35 



