INDEX 



285 



Kohl, 33, 46, 88, 122, 178. 



Kohlrabi, freezing of, 243. 



Kolkwitz, 31, 64, 98. 



Koorders, on rapidity of growth, 1 6. 



Kossiakoff, 262. 



Krabbe, 15, 25, 29, 46, 49, 66, 67, 90, 125 ; 

 on pressures on autumn wood, 216; 

 on relation of stretching to turgor, 60 ; 

 on shortening of isolated bark, 62 ; on 

 tensions in bark, 63. 



Krasan, 205, 207. 



Kraus, 15, 18, 20, 29, 58, 63, 64, 67, 83, 86, 

 95, 164, 200, 213 ; on action of coloured 

 light, 102 ; green rays, 103 ; on 



auto-assimilation, 99 ; on diurnal 

 changes of volume, 66 ; on periodicity 

 of growth, 20 1 ; on relation between 

 growth and tissue-strains, 65 ; on 

 strains in tissues, 62. 



Kronig, 252. 



and Paul, 260, 261 ; on dissociation and 

 poisonous action, 272, 273. 



Kronfeld, 162. 



Kuckuck, 209. 



Kiihne, 231, 238, 241, 259. 



Kiistenmacher, 172. 



Kiister, 57, 63, 128, 133, 172, 206. 



Kuhla, 178. 



Kunisch, 233, 235. 



Kunkel, 258, 261, 262, 267, 268, 270, 271. 



Kurth, 256. 



Labbe, 233. 



Labiatae, ice-formation in, 240. 



Lafar, 81, 84, 247, 258. 



Lagenidium, 41. 



Lagerheim, 78. 



Lamarck, on intussusception, 25. 



Lamellation in starch-grains, origin of, 36. 



Latniuin amplexicaule, resistance of, to 



cold, 232 ; L. purpureujn, influence of 



frequent thawing on, 235. 

 Landolt and Bornstein, 56. 

 Lange, 32. 

 Langendorff, 22, 23. 

 Larix eitropaea, rapidity of growth of, 16 ; 



L. sibirica, resistance of, to cold, 232. 

 Larva, influence of, on gall-formation, 172, 



173- 



Latent period, 204. 



Lathraea, conditions for germination of, 1 14. 

 Laticiferous tubes, mode of growth of, 45, 



46. 



Lauder Lindsay, 77. 

 Laurent, 60, 247. 

 Laxa, 84. 

 Lazniewski, 123. 

 Leaf-fall, 216 ; modes of, 217. 

 Leaf, regeneration of, 169. 

 Leaves, influence of light on, 86, 87, Fig. 



19; floating, elongation of petioles of, 



122. 

 Le Bon, 106. 



Le Conte, 240. 



Lefebvre, on temperature for germination, 

 82. 



Lehmann, 26, 36, 56, 240, 244. 



Leitgeb, 29, 91, 109, 150, 151, 158, 228 ; on 

 dorsiventrality, 150 ; on growth of 

 spore-membranes, 30 ; on influence of 

 gravity on segmentation, 157. 



Leinna, influence of soil on growth of roots 

 of, 122. 



Lendner, 102, 103 ; on influence of light 

 and food on sporangium formation, 90. 



Leod, 106. 



Lepidium sativiini, influence of light on 

 growth of, 97. 



Lepis>niu)n radicans, influence of light on 

 root-formation of, 93. 



Lesage, 122. 



Lewin, 259. 



Lewith, 230, 231. 



Lichens, resistance of, 250 ; symbiosis of, 

 171. 



Lidforss, 17, 114, 119, 262. 



Liesegang, 26. 



Life-cycle, influence of external condition 

 on, 198. 



Light, action of rays of different wave- 

 length, 101 ; ultra-violet, 103 ; for- 

 mative action of, 72 ; influence of, on 

 cell-wall, 101 ; - on distribution, 85 ; 



on dorsiventrality, 149-51, 154; 

 on flowers, 91, 92 ; --on formation of 

 roots and rhizoids, 93, 94 ; --on ger- 

 mination, 92 ; - on germination of 

 fern-spores, 80 ; - - on growth, 84, 97 ; 



on leaf-fall, 218 ; --on periodicity, 

 200-4 ; - on polarity, 156, 157 ; 

 on protoplasmic micellae, 101 ; - - on 

 reproduction, 90, 91, 198 ; injurious 

 action of, 247 ; mode of action of, 98 ; 

 optimal intensity of, 95 ; periodicity 

 due to, 208 ; rapidity of response to, 

 96 ; reaction to changes of, 94 ; stimu- 

 lating action of, 74. 



Lignification, influence of, on elasticity, 55 ; 



on growth, 32. 

 Lignified fibres, elasticity of, 55. 

 Liliaceae, influence of darkness on leaves 



of, 86. 

 Lime, rate of growth of, 18; number of 



cells in, 39. 

 Linaria vulgaris, 47. 

 Lindau, 46. 

 Lindemuth, 174, 176. 

 Lindsay, on strains and curvature, 64. 

 Linseed, vitality of, in absolute alcohol, 251. 

 Linsser, 211, 213. 

 Liriodendron Tulipifera, growth of, as 



evergreen, 212. 

 Livingstone, 118, 121. 

 Lobelia Erinus, influence of cold on seeds 



of, 234 ; -- ultra-violet rays on, 103. 

 Loeb, 72, 132 ; on fertilization, 147. 



