4o8 



INDEX 



megaspore, 249-252, 344, 348-350, 



384. 385 

 meristera, 100, 102, 258, 270, 289, 



320, 321, 377 

 meristem, secondary, 298, 299, 



328, 330, 331 

 meristematic cells, 101-108, 127, 



320, 321 

 mesophyll, 1 15-117, 242, 270, 



302-305, 307, 309-311, 313 

 metabolism, 62, 6g, 122 

 metabolites, 62 

 metaphloem, 324 

 metaxylem, 295, 296, 324 

 micropyle, 348, 349. 35°. 35z. 378. 



387 

 microsporangium, 249-252, 344, 



345-347 

 microspore, 249-252, 344, 346, 



347. 348- 384. 385 

 middle lamella, 107, 276, 278, 



285. 338 

 midrib, 215, 233, 234, 310 

 Mosses, 29, 232, 238-241 

 movement, 22-24, 68, 84-87, 93 

 Mucor, 158-164 

 multicellular organism, 66, 80, 93. 



96, 206, 403 

 muscle tissue, 94, 95, 98 

 must, 134 

 mycelium, 157, 164 



natural selection, 401 



nectary, 272, 356, 357 



nitrification, 153 



nodes. 258, 316, 345 



nomenclature, 27 



non-cellular plants, 97, 158 



non-endospermic seed, 375, 380 



nucellus, 848, 349. 364. 385 



nuclear membrane, 66, 103, 104, 

 106 



nucleolus, 100, 103 



nucleus, 62, 68-68, 73, 95, 97, 

 100, 102, 103-106, 107, 117, 

 125. 139. 158, 162, 185, 187, 

 189, 191, 201, 207. 217, 218, 

 223-225, 226, 236, 272-274, 

 347-350. 352. 361 



obligate parasite, 157 



oils, 42, 376, 381, 382 



oogonium, 223 



" organic." compounds, 36, 38 



osmosis, 57, 311 



osmotic pressure, 57, 108, 131, 305 

 osmotic substances, 57, 108 

 ovary, 348, 351. 353. 354. 3^5- 



368 

 ovule, 254, 255, 348, 349. 359. 360, 



361 



palisade layer (of Fucus), 217, 



222 

 Pandorina, 192-194 

 pappus, 870, 374. 383 

 parasites, 78, 154, 158, 169-183, 



300 

 parasitic, 23, 78, 157, 300 

 parenchyma, 270, 271 

 parthenogenesis, 172 

 pectin, 285 

 pedicel, 345 

 peduncle, 345 

 Pellia, 232-238 

 PeUionia, 126, 234 

 PenicUlium, 164-166 

 pentosans, 275, 285 

 perennation, 265 

 perennial, 256 

 perianth, 345 



pericarp, 864, 365, 368, 369-371 

 pericycle, 293, 317, 318, 320, 338, 



340^ 

 perigynous, 353, 354, 366 

 perisperm, 364, 387 

 petals, 845, 346. 353, 355 

 phseoplasts, 214, 217, 218, 223, 



225, 228 

 phellogen, 299, 331, 337-341 

 phloem, 292, 293, 295, 297-299, 



310, 317, 318 

 phloem fibres, 332, 334, 336, 337 

 photolysis, 115, 285 

 photosynthesis. 32, 113-115. 118, 



121, 220, 302, 303, 309 

 phototaxis, 87 



phototropism, 87, 160, 289, 315 

 Phyiophthora, 175-177 

 piliferous layer, 290, 292, 297 

 pith, 295, 317, 319, 321 

 pits, 108, 276-278, 279-282 

 placenta, 348, 349. 355. 3^8 

 placentation, 355, 368 

 plankton, 184 

 plant pathology, 181 

 plasmolysis, 109, iii, 213 

 plastids, 102, 108, 119, 127, 270 

 Pleodornia, 195-197, 206 

 pollen, 347, 355-358 



