Sao 



INDEX. 



Leaves, vernation of, 547. 

 Leek, 179, 685. 

 LeguminosesE, 199, 334, 337, 



6z6, 687. 

 Lemna, 13, 255. 



— triiulca, 619. 



619. 



Lemnacex, 122. 



Length of roots, 13, 512, 513. 

 Lenticels, 167. 

 Lentil, 763. 



Leoniodon taraxacum, 396. 

 Lepidodendron, 741. 

 Lepismium radicani, 522, 

 Leucin, 349, 384. 

 Leucophyll, 317. 

 Levhtkum cfficinaU, 425. 

 Levulose, 543. 

 Libriform fibres, 139, 160. 

 Lichens, 90, 153, 178, 225, 

 371, 380, 390, 391, 392, 



393, 514, 707. 



— assimilation of, 393. 



— forms of, 393. 



— gonidiaof, 391, 392. 

 392. 



— reproduction of, 727. 



— roots of, 34, 35, 263, 394. 



— symbiosis of, 390. 



— thallus of, 393. 



— tissues of, 153, 392. 

 fungi, 391. 



Life, 191, 395,717- 



Light, 397, 406, 485, 486, 

 489, 493, 494, 503, 508, 

 511, 513, 515, 517-519, 

 522, 524, 527, 528, 531, 



714- 



— absorption of by chloro- 

 phyll, 322. 



— as affecting the develop- 

 ment of chlorophyll, 300. 



— and assimilation, 148, 282, 

 294, 296, 299, 301, 304, 

 307, 309, 510,512. 



— bilaterality induced by, 



525. 



— cardinal points of, 302. 

 ■ — composition of, 302. 



— electric, and assimilation, 

 307. 



— influence on development 

 of organs, 522, 524, 525, 

 526, 527. 



— influence on development 

 of flat shoots, 709, 710. 



— influence on growth, 554, 



555. 



on leaves and chloro- 

 phyll, 617-621, 623. 



on life of plants, 190, 



195, 197, 301, 593- 



on post - embryonic 



growth, 530, 536,537. 



Light, influence on struc- 

 ture of leaves, 536. 



— — on transpiration, 228, 

 251. , 



— intensity of, 302, 306. 



— irritability of Plasmodia 

 towards, 615. 



of protoplasm towards, 



616, 617, 620, 621. 



— local action of, 310. 



— movements of leaves due 

 to, 625-630, 634-639. 



— refrangibility of, 301. 



— retardation of growth by, 



535, 559, 561. 



— sources of, 307, 



— as a stimulus, 594, 597, 

 601, 625-628, 638, 653, 

 692, 694, 698, 702, 705. 



— irritability of swarm- 

 spores to, 608, 610-612, 

 613, 621, 696, 714. 



— variations in intensity of, 



541, 55r, 552, 554, 556, 

 559, 560, 594, 613, 621, 

 623-643, 713. 



— of various colours, 303, 



305, 311, 638, 696, 697. 



— wave-lengths of, 306. 

 Lignification, 88, 90, 289, 



416, 423, 570- 

 Lignified elements, 161. 



— tissue, 231. 



— cell- walls, 242. 

 Lignin, 329, 389. 

 Lignite, 294, 382. 

 Liliaceae, 156, 169, 177, 419, 



424, 528, 534, 706, 780. 

 Lilium, 118. 



— candidum, 178, 400. 



— Mart agon, 178. 

 Lily, 51, 756. 



Lime, salts of, 79, 159, 254, 

 290,320, 334. 



— in sap, 274, 280. 



— oxalate of, 291. . 



— 466, 581, 714. 



— 445, 446, 482. 

 Linaria, 780. 

 Linum, 374. 



— grandifolium, 640. 



— perenne, 790. 



— uiitatissimum, 546, 791. 

 Lithium, experiments with, 



235, 254, 269. 



— spectrum of, 236. 

 Lithocysts, 177. 

 Liverworts, 31, 66, 120, 



302, 474, 476, 479, 491, 

 495, 525, 621, 705, 706, 

 708. 



— growing-point of, 461. 



— reproduction of, 723, 724. 



— tissues of, 150. 



Loam, 259. 

 Loasaceae, 124, 669. 

 Lobeliacese, 171, 780, 792. 

 Lobelia fulgeni, 798. 

 Longitudinal axis, 482, 48 6, 



— sections, 447, 449, 481, 



483, 563, 571- 



— walls, 452. 

 Lonicera, 186, 506. 



— capr'^olium, 668. 

 Lophospermum, 659. 

 Loranthaceae, 64, 367, 766, 

 Loranthus Europssus, 368. 

 Luminous fungi, 406, 408, 



695. 

 Lupin, 326, 345. 

 Lupinus •variui, 333. 

 Lupulin, 185. 

 Luzu/a pilosa, 792. 

 Lychnis, 780. 

 ^ diurna, 781. 

 — Jlos cuculi, 781. 



— -viscaria, 184. 

 Lycium, 320. 

 Lycopodiaceas, 52, 181, 474, 



800. 



— reproduction of, 741, 744, 

 745, 748. 



— shoots of, 55, 62. 

 Lycopodium, 75, 588. 



— chamsecyparissm, 1X2, 146. 

 147. 



Lygodium, 60, 425, 492, 495, 

 675. 



Lysigenous intercellular spa- 

 ces, 176. 



Lysimachia, 183, 184. 



— nummularia, 483. 

 Lythrum Salicaria, 790. 



M. 



Macleya cor data, 571. 



Macrocystis, 419. 



Macrosporangia, 746, 751, 

 766. 



Macrospores, 746-752, 766, 

 800. 



Macrostylous flowers, 790. 



Macro-zoospores, 609. 



Magnesia, 79, 334. 



Magnesite, 263. 



Magnesiun salts, 202, 226, 

 254, 262, 284, 287, 289, 

 290, 291, 383. 



Magnoliaceae, 180. 



Mahonia, 321, 395, 595. 



Maize, 12, 29, 193, 194, 217, 

 228, 229, 262, 263, 271, 

 278, 283, 284, 286, 288, 

 300, 309, 310, 313, 337, 

 344, 417, 424, 523, 564, 

 687. 



— 13, 38, 42, 271, 421. 

 Majanthemum bifoliurn, 51. 



