832 



Index 



Daphne Mezereum, 146 

 Darwin, 1, 2, 3, 4, 5, 6, 7, 

 18, 76, 85, 93, 109, 110, 

 180, 196, 205, 206, 242, 

 306, 324, 338, 448, 571, 

 604, 612, 689, 702, 710, 

 715, 743, 798, 825 

 Darwin, George, 711 

 Darwinian theory, 461 



basis of, 5 

 Date, 134 



Datura Stramonium, 139, 142 

 Stramonium inermis, 300 

 Tatula, 139, 142, 300 

 Dead-nettle, 237 

 De Bary, 38, 47, 49 

 De Candolle, 76, 84, 85, 89, 



228, 370, 403, 621 

 Alphonse, 74, 129, 226 

 A. P., 129 

 Casimir, 659, 676 

 De Graaff, 275 

 Delphinium Ajacis, 192 

 Deniau, 617 

 Descent, theory of, 690, 694, 



702, 707, 716, 798 

 De Serres, Olivier, 72 

 Desmodium gyrans, 655, 656, 



663, 664, 65 



Dewberry, California, 269 

 Dianthus barbatus, 322, 648 



twisted variety, 408 

 Diatoms, 699 

 Dictoyledons 



ancestors of monocot- 

 yledons, 15 



Digitalis parviflora, 161, 640 

 purpurea, 483 

 pelorism of, 483 

 Dimorphism, 445, 447, 454, 



457, 458 

 Dippe, 810 

 Dipsacus fullonum, 402 



sylyestris, 402, 403 

 Dominant character, 280 

 Double flowers 

 poppies 490 

 production of, 489 

 types of, 330 

 Double races (see also ever- 



sporting varieties), 419, 

 427, 428 



Dubois, Eugene, 712 

 Duchesne, 185, 188, 596 

 Duckweed, 222 

 Draba, 692, 693 



verna, 47, 50, 51, 53, 125, 

 126, 518, 533, 546, 547, 

 561 

 Dracocephalum moldavicum, 



419 



Dragon-head, 419 

 Drosera anglica, 268 

 filiformis, 268 

 intermedia, 268 

 obovata, 267 

 rotundifolia, 268 



E 



Earth, age of, 710 

 Edelweiss, 438 

 Eichler, 660 

 Election, 801 



Electric light, growth in, 442 

 Elementary species, 11, 13, 32, 

 67, 74, 76, 77, 78, 79, 91, 

 95, 116, 119, 124, 126, 

 128, 129, 207, 238, 252, 

 256, 307, 430, 435, 695, 

 696, 698, 702, 715, 787, 

 798, 800, 825 

 apples, 75 

 coconut, 82 

 corn, 81 



cultivated plants, 63 

 definition of, 12, 35, 127 

 flax, 80 



how produced, 16. 248 

 hybrids of, 253, 255 

 mutation of, 141 

 origin of, 459, 603 

 origin of, how studied, 463 

 selection of, 92 

 varieties vs., 14, 15, 141, 

 152, 224, 243, 247, 251, 

 495 



Elm, 136, 219, 239, 427 

 Epilobium, 268 

 hirsutum, 683 



