Index 



835 



Heaths, origin of, 662 

 Heather, 577 



Hedera Helix arhorea, 437 

 Hedgehog burweed, 140 

 Hedysarum, 664 

 Heeger, 582 

 Heer, Oswald, 74j 105 

 Heinricher, 172, 173, 174 

 Helianthemum, 53, 125, 126, 

 561 



apenninum, 53 



pilosum, 53 



polifolium, 53 



pulverulentum, 53 



vulgare, 440 

 Helichrysum, 420 

 Heltoingia, 678, 678, 683 



ruscifiora, 675 

 Hemp, 419 

 Henbane, 283 

 Bepatica, 322, 490 

 Heredity, 731, 734, 818 



bearers of, 632 



in teasels, 643 

 Hesperis, 241, 322 



matronalis, 323, 411 

 Eeylandia latebrosa, 450 

 Hibiscus Moscheutos, 591 

 Hieracium, 59, 439 



alpinum, 698 

 Hildebrand, 160, 240, 241 

 Hoffman, 160, 663 

 Hofmeister, 160, 370, 480 

 Holbein, 164, 596 

 Holly, 140, 196 

 PToltermann, 449, 451 

 Hollyhock, 427 

 Honeysuckle, 674 



ground, 443 

 Hordeum distichum, 677 



hexastichum, 677, 678 



tetrastichum, 677 



trifurcatum, 676, 678 



vulgare trifurcatum, 203 

 Hornbeam, European, 180 

 Horse-chestnut, 219 



thornless, 234 

 Horsetail, Canadian, 695 



European, 649 



Horsetail, family, 641 

 Horse- weed, 132 

 Canadian, 453 

 Hortensia, 134, 181 

 Horticulture, mutations in, 



604 

 Houseleek, 370, 371 

 Hunneman, John. 521 

 Hyacinths. 178. 323 



white, 160 

 Hybrids, 58, 201, 202, 206, 

 250, 575 

 between elementary species, 



253 

 constant, 263, 264, 265, 266, 



267, 268, 269 

 law of varietal, 716 

 Mendelian, 324 

 nature of, 20 

 species, 256, 260 

 splitting of, 210 

 varietal, 208, 209, 247 277, 

 278, 279, 281, 285, 293, 

 294 

 Hybridization, 706, 751, 752, 



758, 759, 764 

 Hydrocotyle, 668 

 Hyoscyamus niger, 283 



pallidus, 283 

 Hypericum perforatum, 725 

 Hyssopus officinalis, 161 



Iberis umbellata rosea, 195 

 Improved races, inconstancy 



of 

 Indian cress, 668 



pelorism of, 485 

 Indian pipe, 661 

 Ipecac spurge, 55 

 Iris, 456 



falcifolia, 173 



kaempferi, 174 



lortetii, 521 



pallida, 173 



pallida abavia, 681 

 Isolation, 108 

 Ivy, 436 



