854 



INDEX. 



Knight's experiments on the 

 influence of gravitation, 

 763. 



Labiatae, 580. 

 Labiatiflorae, 580. 

 Labium, 408. 

 Lamina, 191, 471, 564. 

 Lamium, 480. 

 Lateral arrangement, 184. 

 Lateral plane, 523. 

 Lateral roots, 144. 

 Lateral shoots, 152, 166. 

 Latex, no. 

 Lathraea, 50, 572. 

 Laticiferous vessels, 74, 109. 

 Latticed cells, loi. 

 Lauracese, 566, 579. 

 Leaf, 109, 131, 136, 161, 



173, 190. 

 Leaf-blade, 191, 564. 

 Leaf- forming axis, 131, 151. 

 Leaf-sheath, 365. 

 Leaf'stalk, 191, 564. 

 Leaf-tendrils, 194, 775, 

 Leaf- thorns, 194. 

 Leaf-trace, 134, 431. 

 Leaf-veins, 192. 

 Leaflet, 191. 

 Legume, 538. 

 Legumin, 642. 

 Leguminosse, 584, 640. 

 Lejolisia, 235. 

 Lemnaceae, 553. 

 Lentibulariaceae, 581. 

 Lenticels, 91. 

 Lepidodendron, 420 

 Lepidostrobus, 421. 

 Leptogium, 265. 

 Levisticum, 162. 

 Leycesteria, 566. 

 Libriform tissue, 35, 100. 

 Lichens, 262. 

 Lichina, 272. 

 Lichnoerythrine, 686. 

 Lichnoxanthine, 686. 

 Light, Action of, 659, 752, 



784, 790. 

 Light, Intensity of, 662. 

 Light, Refrangibility of, 666. 

 Lignification of the cell-wall, 



7, 20, 35. 

 Ligule, 192, 408, 547. 

 Liliaceae, 524, 555. 

 Liliiflorae, 555, 

 Limnanthaceae, 583. 

 Linaceae, 583. 

 Loasaceae, 582. 

 Lobelia, 566. 

 Lobeliaceae, in, 581. 

 Loculicidal dehiscence, 538. 

 Lodicule, 471. 

 Loganiaceae, 580. 

 Lomentum, 537. 



Lonicera, 566. 

 Loranthaceae, 505, 513, 557, 



585. 

 Lunularia, 298. 

 Lupinus, 52, 641. 

 Lychnis, 472. 

 Lycogala, 276. 

 LycopodiacesE, 400. 

 Lycopodieae, 416. 

 Lycopodium, 70, 400, 404, 



416. 

 Lygodium, 197, 360, 772. 

 Lythrarieae, 585. 



Macrosporangium, 393, 396. 

 Macrospore, 335, 396, 403, 



432. 

 Magnesium, 622. 

 Magnoliaceae, 579. 

 Mahonia, 475, 787. 

 Malaxis, 544. 

 Male reproductive cells, 203, 



426, 802. 

 Malpighiaceae, 582. 

 Malvaceae, 583. 

 Manglesia, 478. 

 Manubrium, 284. 

 Marattia, 361. 

 Marattiaceae, 361. 

 Marchantia, 23, 76, 89, 298, 



301, 305. 

 Marchantieae, 305. 

 Marcgraviaceae, 582. 

 Marsilea, 140, 163, 384, 388, 



393, 398, 399- 

 Mechanical laws of growth, 



692. 

 Mechanical structure of irri- 

 table parts, 792. 

 Median plane, 167. 

 Medullary rays, 573. 

 Medullary sheath, 463, 574. 

 Megaclinium, 785. 

 Melanosporeae, 229. 

 Melastomaceae, 585. 

 Meliaceae, 582. 

 Melobesiaceae, 64, 234. 

 Members, 130. 

 Menispermaceae, 566, 579. 

 Mericarp, 537, 538. 

 Merispore, 241. 

 Meristem, 79. 

 Mesembryanthemeae, 585. 

 Mesocarp, 518, 537. 

 Mesocarpeae, 220. 

 Mesophyll, 192, 356. 

 Metamorphosis, 631, 835. 

 Metamorphosis of organs, 



128, 183, 194. 

 Metaplasm, 37, 41. 

 Metastasis, 626. 

 MetzgerJa, 120, 160, 297. 

 Micranthae, 554. 

 Microcyst, 277. 



Microgonidia, 219. 

 Micropyle, 427, 501. 

 Microsporangium, 393, 396. 

 Microspore, 335, 396, 401, 



432. 

 Mid-rib, 192. 

 Mimosa, 694, 793. 

 Mimoseae, 584. 

 Mineral substances in food 



of plants, 622. 

 Mistletoe, 557. 

 Mnium, 151, 313. 

 Moist surfaces, Growth of 



roots in, 764. 

 Molecular forces, 587. 

 Molecular structure, de- 

 struction of, 591. 

 Molecules, 588. 

 Monoblepharidae, 243. 

 Monocarpellary, 491. 

 Monocarpic, 519. 

 Monochlamydeae, 578. 

 Monocleae, 304. 

 Monocotyledons, 433, 541. 

 Monoecious, 426, 804. 

 Monoecism, 807. 

 Monopodial inflorescence, 



520. 

 Monopodium, 156. 

 Monosymmetrical, 183, 533. 

 Monotropa, 194, 557, 620, 



643. 

 Monotropeae, 581. 

 Moreae, 578. 

 Mosses, 295, 311. 

 Mother-cells of pollen, 32, 



484. 

 Motility, 788. 

 Movement of food-materials, 



623. 

 Movement of protoplasm, 



39, 276, 651, 670. 

 Movement of water, 598, 



652. 

 Movements of gases, 614. 

 Mucilage, conversion of the 



cell-wall into, 20, 36. 

 Mucor, 245, 246. 

 Mucorini, 245. 

 Mulberry, 518, 537. 

 Multilateral structure, 184. 

 Musaceae, 548, 556. 

 Muscari, 154. 

 Muscineae, 292. 

 Mushroom, 249. 

 Mycelium, 239, 249. 

 Myricaceae, 585. 

 Myristica, 512. 

 Myristicaceae, 579. 

 Myrsinaceae, 581. 

 Myrtaceae, 585. 

 Myrtiflorae, 585. 

 Myxoamoebae, 10, 39. 

 Myxomycetes, 10, 274. 



