368 



INDEX 



diacy in, 56, 264; reciprocals of, 

 52, 55-6 ; species-hybrids, domi- 

 nance in, 56, 163 



Digitalis, crosses of, 195, 206, 260-2 



disjunction, 131-3, 324-6 



dissociation of characters, see dis- 

 junction, segregation, and hy- 

 brids, segregation of 



dominance, 52, 56, 87, 108, 116, 121, 

 142, 163, 210, 215, 234-5, 236, 238, 

 259, 279, 292-4, 324-5, 329, 330, 

 349-50, 351-3, 355-7; color, 87, 89, 

 103, 142, 163, 210; "dominste," use 

 of word, 121, 163, 356; in species- 

 crosses, 52, 56, 163, 170; see also 

 hybrids, dominance in 



doubleness, dominance of, 52, 56 ; 

 in flowers, 97, 98, 143, 155 



double-pollination, 100. 209 



Drosera, crosses of, 272-4 



E 

 "Epistola De Sexu Plantarum" of 



Camerarius, 12 

 Erica, hybrid, 265 

 evolution, method in, 203, 241-5 

 eye-color, inheritance of, 243, 248-50 



FACTORS, in inheritance, 181, 271-2, 



303,.33i, 332, 334-5 

 Fairchild, Thomas, experiment in 



hybridization, 62, 65 

 fertility, in cross and self-fertilized 

 plants, 224-6, 227-32, 236-7 ; of hy- 

 brids, see hybrids ; ratio of, in 

 cross and self-fertilized plants, 



237 

 fertilization, see also crossing; 

 cross and self, 87. 100, 188, 224-6, 

 226-32, 348-9; difficulties in, 162; 

 effect of, 20, 21, 60-1, 72-5, 162, 

 188; effect of cross, 173, 174, 176; 

 experiments in, 20-2, 42-3, 49, 

 71-5; male and female elements 

 in, 44, 46, 56, 70, 75, 77, 89. 91-3, 

 181-2, 193, 198, 209, 270, 318, 353; 

 nature of, 38-9, 44, 46, 47-8, 75;6, 

 232; of maize, 12-13, 68-9; role 

 of insects in, see insect-pollina- 

 tion ; theories regarding. 38-9. 40, 

 42-4, 46, 47-8, 57, 75-6, 98-9, 100-1, 



193, 334 



fig, fertilization of, 39 



Focke, W. O., 204-16; details of 

 work, 211 ; estimate of Knight, 

 93; opinion of Gartner, 177 



Galton, sir Francis, 241-59; estimate 

 of work, 258-9 



Gartner, C. F. von, 164-78; list of 

 crosses, etc., 168; opinion of Kol- 

 reuter, 78; reference to Knight, 



Gleditsch, J. G., 70-7 ; experiments 

 in pollination, "joff.; theory of 

 fertilization, 75-6 



Gloxinia, color-dominance in, 142; 

 hybrid, 142 



Godron, D. A., experiments in hy- 

 bridization, 124-9 



Goss, John, crossing of peas, 102-3; 

 reference of Focke, 214-15; refer- 

 ence of Knight, 91 



Grew, Nehemiah, 62-4 



H 



Haartmann, Johannes, hybrids, dis- 

 cussion of, 24, 28, 29 



Hedychium, 264, 266 ; color-inheri- 

 tance in, 266; intermediacy in, 

 264, 266 



hemp, Camerarius' experiments, 12 



Henslow, J. S., 260-3 



Herbert, William, 94-102; acclimati- 

 zation, views on, 97 ; cross of 

 Crinum, 97 ; cross of Hippeas- 

 trum, 97; cross of Rutabaga, 98; 

 double flowers, experiments with, 

 97-8 ; estimate of Kolreuter, 94 ; 

 fertilization, views on, 98-9, lOO-l ; 

 hybrids, views on, 95-6; species- 

 crosses, 99 ; summary of work of, 

 101 



heredity, bisexual, 271-2; Galton's 

 law of, 251-2, 258-9; method in, 

 Galton, 244-6; nature of, 147-8-9, 

 203-4; unisexual, 271 



heterosis, 89, 90, 192. 226^. 



Hibiscus, hybrid, 99 ; intermediacy 

 in, s'3 ; pollination of, 60-1 



Hoffman, H., Mendel-citations, 216- 

 18 



llinnulus, 19 



hybridization, see also hybrids; 



