548 



IXDKX 



Legume, 147, 443* 



Lenticels, 71 



Lepidodendron, 340, Plate VIII 



Leucoplasts, 110 



Lianas, 47*, 48 



Lichen, 254-257, Plate V 



Lichens, nature of, 255 



Life history, chromosome count in, 



348 



Light, exposure to, 39 

 Light, movements away from, 39, 101 

 Light, movements towards, 101 

 Lignification, 367 

 Lignin, 114 

 Ligule, 338* 

 Lilac mildew, 249*, 250 

 Lily, 377*, 378*, 380*, 383*, 384*, 



385* 

 Lily, pollen grains producing tubes 



on stigma, 142* 

 Lime, 120 



Linden, fruit cluster of, 439* 

 Linden wood, structure of, 66* 

 Linear, App. I 

 Linnaeus, 153 

 Liverworts, 275, 279-289* 

 Living matter, properties peculiar 



to, 167 



Living parts of the stem, 71, 72 

 Lobe, 126* 

 Locules, 129*, 148* 

 Locust, pinnately compound leaf of, 



92* 



Locust, thorn stipules of, 417* 

 Lycoperdon, 268* 

 Lycopodinese, 329-339* 

 Lycopodium, 330-332* 



Macrocystis, 208* 



Magnesium, 28, 29 



Magnolia, forking of, 42, 45*, 46* 



Mallows, pollination in, 429*, 430* 



Malt, 10, 11 



Maltose, 79 



Mangrove, 468* 



Maple fruit, 147* 



Marchantia, 280-285* 



Marchantiales, 280-285* 



Marestail, air passages of. 111* 



Marsilia, 321-323* 



Mat plants, 51 



Mechanics of stem, 58*, 59, 60*, 62*. 



312* 



Medullary ray, 60*, 66, 71, 72, 307 

 Megasporangium, 334 



Megaspore, 322 

 Megasporpphyll, 334, 369 



Melon, leaf of, 89* 

 Mesembryanthemum, 465* 

 Mesophyll, 103*, 105 

 Mesophytes, 459, 467, 468 

 Mesquite, root system of, 27 

 Metabolism, 114, 115 

 Metabolism, digestive, 114 

 Metachlamydeifi, 397, 399, 400 

 Micropyle, 6*, 142, 144*, 361, 362*, 



381, 383* 



Microsphsera, 249*, 250 

 Microsporangium, 334 

 Microspore, 322 

 Microsporophyll, 334, 369 

 Midrib, 89* 

 Mildews, 248-250* 

 Mildews, green and yellow, 250* 

 Mineral matter accumulated in the 



leaf, 120 

 Mistletoe, 408 

 Mixed buds, 83 

 Modified leaves, 80, 81* 

 Moisture favors root growth, 39 

 Molds, 239-242* 

 Monadelphous, 127, 128* 

 Monoblepharis, 247 

 Monocotyledonese, 397, 398 

 Monocotyledonous plants, 18 

 Monocotyledonous stems, 57-59* 

 Monocotyledonous stems, growth of, 



in thickness, 59 

 Monocotyledonous stems, rise of 



water in, 75* 

 Monocotyledons, 397, 398 

 Monoecious, 124* 

 Moon wort, 324* 

 Morchella, 251, 252* 

 Morel, 251, 252* 

 Morphology, 1, 151 

 Mosaics, leaf, 95*, 96, 97* 

 Moss, life history of, 294-297* 

 Mosses, 275, 289-301* 

 Moths, 427* 

 Mougeotia, 194 



Movement of water in plants, 73-78* 

 Movements of leaves, 97-101* 

 Mucor, 243* 

 Mucorales, 239-242* 

 Mucronate, App. I 

 Mulberry, 149* 

 Multiple fruits, 146, 149*, 150 

 Musci, 275, 289-301* 

 Mushroom, 265, 267* 



