50$ 



INDEX. 



Kelps, 1 68 

 Kingdom, 492 



Labiatae, 423, 501 



Laboulbeniales, 218 



Labrador tea, 499 



Lactuca canadensis, 460 



Lactuca scariola, 409, 460, 461 



Lagenidium, 214, 215 



Laminaria, 168, 169 



Lamium, 424, 501 



Larch, 367 



Laurel, 499 



Leaf patterns, 404 



Leathesia difformis, 168 



Leaves, form and arrangement, 383- 

 391; function of, 3_8jj; protective 

 modifications of, 392; protective 

 positions," 395; reduction of sur- 

 face, 394; relation to light, 397; 

 structure of, 40-43. I 3 I . 39 r > 393 



Legumes, 92, 93, 453 



Leguminosae ( = Papilionaceae), 396, 



399 



Leitneria floridana, 494 

 Leitneriales, 494 

 Lemanea, 171, 173, 175, 492 

 Lemna, 418 

 Lemna trisulca, 26, 27 

 Lenticel, 357, 358 

 Lepiota naucina, 208 

 Lettuce, 502 

 Leucoplast, 71 

 Lichens, 86, 93-95, 220, 221 

 Light, 465 

 Liliaces, 490, 493 

 Liliales, 490, 493 

 Lilium, 489-493 

 Linaria vulgaris, 501 

 Linden, 498 

 Linum vulgaris, 497 

 Lipase, 108 

 Liquidambar, 496 

 Liriodendron, 496 

 Live-forever, 394 

 Liverworts, 222-239; absorption by, 



23-25; classification of, 242 

 Lobelia, 501 

 Lupinus perennis, 353 

 Lycoperdales, 220 

 Lycopodiaceae, 296 

 Lycopodiales, 296 

 Lycopodiineae, 296 

 Lycopodium, 284-286 



Macrosporangium, 94, 302, 304, 311. 



312, 321 



Macrospore, 287, 290, 326-328, 434 

 Magnolia, 496 

 Mallow family, 498 

 Malvales, 498 

 Maple family, 497 

 Marchantia, 24, 226-236 

 Marchantiales, 242 

 Marine plant societies, 486 

 Marratiales, 295 

 Marsilia, 370 

 Marsiliaceae, 296 

 Matoniaceae, 295 

 Medicago denticulata, 92 

 Medulla, 50 



Members of the flower, 335 

 Members of the plant, 349353 

 Meristem, 359 

 Mesocarp, 450 

 Mesophytes, 467 

 Microsporangia, 294, 299 

 Microspore, 287, 290, 299, 312, 



435 



Microsporophylls, 299, 320, 420 

 Milkweed family, 500 

 Mimosa, 132, 396 

 Mimulus, 501 

 Mint family, 501 

 Mistletoe, 84, 495 

 Mitchella, 501 

 Mixotrophic plants, 85 

 Mnium, 243-246 

 Molds, nutrition of, 86-90 

 Molds, water, 181 

 Monadelphous, 424 

 Monoblepharidales, 215 

 Monoblepharis, 215 

 Monocotyledons, 490, 492 

 Monoecious, 435 

 Monotropa uniflora, 499 

 Morchella, 198, 199 

 Morel, 198, 199 

 Morning-glories, 500 

 Mosaics, 405 

 Mosses, 243-248, 457; absorption 



by, 25; classification of, 248 

 Mucor, 6, 7, 15, 118, 119, 177-180, 



215 



Mucorales, 215 

 Mulberry, 704 

 Mullein, 366, 394, 501 

 Mushrooms, 199-208 

 Mustard family, 496 



