408 INDEX 



megaspore, 249-252, 344, 34 8 ~35O, 



384, 385 

 meristem, 100, 102, 258, 270, 289, 



320, 321, 377 

 meristem, secondary, 298, 299, 



328, 330, 331 

 meristematic cells, 101-103, 127, 



320, 321 

 mesophyll, 115-117, 242, 270, 



302-305, 307, 309-3H, 313 

 metabolism, 62, 65, 122 

 metabolites, 62 

 metaphloem, 324 

 metaxylem, 295, 296, 324 

 micropyle, 348, 349, 35, 352, 378, 



38? 

 microsporangium, 249-252, 344, 



345-347 

 microspore, 249-252, 344, 346, 



M7, 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, 348, 349, 364, 3 8 5 



nuclear membrane, 66, 103, 104, 

 106 



nucleolus, 100, 103 



nucleus, 62, 66-68, 73, 95, 97, 

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

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



189, 191, 2OI, 2O7, 217, 2l8, 



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, 35 L 353, 354, 365- 



368 

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



361 



palisade layer (of Fucus), 217, 



222 



Pandorina, 192-194 

 pappus, 370, 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 

 Pellionia, 126, 234 

 Penicillium, 164-166 

 pentosans, 275, 285 

 perennation, 265 

 perennial, 256 

 perianth, 345 



pericarp, 364, 365, 368, 369-371 

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



34 



perigynous, 353. 354- 3 

 perisperm, 364, 387 

 petals, 345, 346, 353, 355 

 phaeoplasts, 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 

 Phytophthora, 175-177 

 piliferous layer, 290, 292, 297 

 pith, 295, 317, 319, 321 

 pits, 108, 276-278, 279-282 

 placenta, 348, 349, 355, 368 

 placentation, 355, 368 

 plankton, 184 

 plant pathology, 181 

 plasmolysis, 109, in, 213 

 alastids, 102, 108, 119, 127, 270 

 Pleodornia, 195-197, 206 

 pollen, 347, 355~358 



