Index 



Lycmm, 367. 



austruUs, 366, 398, 399, 411. 



Lycopersicum, histology of pedicel, 

 350, 351, 367, 412; development 

 of separation zone, 367-369; fig- 

 ure showing, 368; increase in size 

 and development of mechanical 

 tissues of pedicel, 369-371; spon- 

 taneous abscission in, 393, 401, 

 408, 414; floral abscission in, 408; 

 figures showing abscission pro- 

 cess, opp. 428. 



Lycopersicum esculeiitum, spontaneous 

 abscission in, 395. 

 var. pyriformc, 398, 399, 411. 

 var. v'ulgarc, 398, 399, 411. 



McGee, J. M., 439. 



Magnesium, used in nutrition experi- 

 ment on Nicotiana, 284. 



Maryland tobacco, 5, 89; illustrations 

 of, opp. 36, 461, 463. 



Mendelian dominance, 111, 112, 118, 

 117-168. 



Mendelian inheiitance in Nirotiaua 

 Tahanim, 459, 460, 471, 487, 490, 

 503, 506, 507-508, 510, 513, 516- 

 519, 520; methodology of Mendel- 

 ian analysis in, 513-516; pairs of 

 factors, 516; consideration of lit- 

 erature in connection with pres- 

 ent study, 517-519. 



Mendelian notation, 181, 183, 185, 



186, 228. 



Mexico, white tobacco from. 7. 



Mineral acids, action of, on separa- 

 tion cells of Nicotiana, 404-406. 



MirahiJis, 352, 353, 445. 

 Jalapa, 348, 353. 



Moisture, contributing factor in ger- 

 mination of tobacco seed, 451. 



Moisture requirement in process of 

 abscission, 448. 



Muller, H. J., cited, 512. 



Narcotic vapors, effect of, on abscis- 

 sion, 355, 359, 390, 397-404, 416, 

 445, 447. See also Illuminating 

 gas. 



Nature of the F, Species Hybrids be- 

 tween Nicotiana sylvestrif! and 

 Varieties of Nicotiana Tahncnm 

 with Special Reference to the 

 Conception of Reaction System 

 Contrasts in Heredity, 301; ])lates 

 showing, opp. 324, 326, 328, 330, 

 332, 334, 336, 338, 340, 342, 344. 



"Nic. tahaccum Cuba," 251, 263, 264, 

 265, 266, 268, 269, 274, 275. 



Nicotiana, literature cited, 30, 152, 



187, 198, 222, 231, 248, 270, 290, 

 299, 322, 367, 418, 450. 



Nicotiana. Parthenogenesis, Partheno- 

 carpy, and Phenospermy in, 249. 

 Nicotiana, Studies in, 1. 



Nicotiana acuminata, 23, 262, 350; 

 plate showing, opp. 158, 168; 

 description of wild form of, 

 121; plate showing, opp. 160; 

 dominance experiments on co- 

 rolla diameters, 117-168. See 

 also Dominance, Imperfect. 

 grandiflora, 119, 120; plate show- 

 ing, opp. 82. 

 parvi-Hora, 119, 120. 

 acutifiora, 22. 

 aJJiniH, 16, 22, 23, 261, 448. 

 alata, 17, 22, 262; plate showing, 

 opp. SO. 

 var. (jrandiflora, 16, 22, 23. 

 var. persica, 22. 

 Bigelovii, 25, 121, 234, 262, 398, 399, 

 411. 



■ Porno, 



598. 



var. Wallacei, 26, 398. 

 Forget iana, 23. 

 glauca, 18, 262, 303, 398, 411. 

 glutinosa, 18; plate showing, opp. 

 72. 

 Langsdorfii, 15-17, 262, 350, 392, 

 435; plate showing, opp. 64. 

 var. grandiflora, 16, 23, 393, 406, 



407; plate showing, opp. 66. 

 var. longiflora, 17; plate showing, 

 oj)p. 68. 

 longiflora, 21-22; plate showing, 

 opp. 78. 

 var. aciitiflora, 21. 

 multivalvis, 27, 234, 398, 399, 411. 

 noetiflora, 20; plate showing, opp. 

 76. 

 var. albiflora, 20. 

 Palmeri, 29. 



paniculata L., 17, 263; plate show- 

 ing, op]). 70. 

 plumhaginifolia, 398. 

 quadrivalvis, 26, 234, 387, 398, 399, 



411. 

 repanda, 28; plate showing, opp. 84. 

 rustica, L., 12, 262, 350, 398, 411, 

 454, 455. 

 var. asiaiica. 12; ])late showing, 



opp. 48. 

 var. brasilia, 13, 399; plate show- 

 ing, opp. 50. 

 var. ]inmili>t, 13; plate showing, 



oi)p. 52. 

 var. jamaicensis, 13, 14; plate 



showing, opp. 54. 

 var. pumila?, 15; plate showing, 



opj). 60, 62. 

 var. scahra, 141 ; plate showing, 



opp. 56. 

 var. iexana, 13, 15, 233; plate 

 showing, opp. 58. 

 Sanderac, 398, 399, 411. 

 suaveolens, 24, 122, 387, 398, 411. 



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