484 



INDEX 



Lycopodiales, 321 



Lycopodium, 326, 327, 328, 330 



Lythrum, 447, 448 



MacDougal, 137 



Macrocystis, 194 



Madder order, 467 



Malus, 436 



Maple, 442, 444 



Marattalies, 301 



Marchantia, 260, 268-274 



Marchantiales, 257 



Massee, 224 



Massula, 409 



Mechanical structure, 66, 78 



Medullary ray, 87, 88 



Megasporangia, 332, 333, 341, 364 



Megaspore, -no, iii, 324, 332, 333 



Megasporophyll, no, 332, 333, 339, 



364 



Melandryum, 367, 422 



Melosira, 158 



Mendel, 133 



Mendel's Law, 134 



Mesophyll, 9, 10 



Mesophytes, 37 



Micropyle, no, 111,340,341,353,364 



Microsphaera, 226 



Microsporangia, 332, 333, 363 



Microspore, 109, 324, 332, 333 



germination of , 1 14, 1 1 5, 324, 333, 



343, 354 

 Microsporophyl, 332, 333, 340, 363 

 Micrasterias, 177 

 Mildews, downy, 208 



powdery, 223, 224, 226 

 Mimosa, 33 

 Minerals in soils, 47 

 Mint family, 361 

 Minium, 288 

 Monkshood flower, 426 

 Monocotyledons, 90, 384 

 Monoecious, 270 

 Monotropa, 457 

 Morchella, 232 

 Morel, 231 

 Morning-glory, 460 

 Mosaics, 28 

 Moss, 281 



bog or peat, 282 



chloroplasts, 17 



true, 287 

 Mould, black, 211, 212, 213 



brown, 219 



Mould, green, 205, 216, 219 



water, 206 

 Movements, gases, 12, 20, 43 



leaf, 31 



root, 57 



stem, 97, 100 



water, 23, 54, 73, 75, 76 

 Mucorales, 211 

 Mushrooms, 240, 242 

 Musci, 281 

 Mustard family, 429 

 Mutants, 136 

 Mycelium, 205 



Mycorrhiza, 63, 282, 302, 407 

 Myrtales, 447 

 Myrtle order, 447 

 Myxomycetes 142, 143 



Narcissus, 404 



Navicula, 158 



Nectar glands, 365, 372, 3! 



Nemalion, 200 



Nereocystis, 194 



Netted veined leaf, 308 



Nettle, 38, 421 



Nidulariales, 248 



Nitrogen, 61, 151 



Nostoc, 156 



Nucellus, no, in, 374 



Nucleoli, 52 



Nucleus, I, 2, 51, 131 



Nut, 417 



Nutations, 98, 103 



Oak, 28, 419 

 Odors, 396, 401, 418 

 Oedogonium, 186, 187 

 Oenothera, 28, 448, 449 

 Olive, 146 

 Onoclea, 315 

 Oogonium, 185 

 Oosphere, 185, 261 

 Operculum, 285, 286 

 Ophioglossales, 299 

 Ophioglossum, 300 

 Orange, 445 

 Orchid order, 406 

 Orchidales, 406, 407, 408 

 Orchis, 409 

 Order, 140 

 Oscillatoria, 156 

 Osmosis, 48 

 Osmunda, 312, 313 

 Ovary, 109, no, 364 



i, 416,. 425 



