INDEX 



375 



Petals, 173 

 Petaatites, 265 

 Phfeophyooae, 69, 77 

 Phalloidaoeae, 97 

 Phanerogams, 171-218 

 PhasoacosE, 138 

 Phyoooyanin, 24 

 Phyoomyoetes, 102 

 Phyaeia parietina, 115-117 

 Phytophthora infestans, 93 

 Picea, 188, 306 



excdaa, 181-185, 188 

 Pileus, 109 

 Pillwort, 156 

 Pilularia, 156 



globulifera, 156 

 Pimpernels, 215 

 Pinaoeae, 186 

 Pine, Aleppo, 190 

 Corsioan, 190 

 Mountain, 190 

 Weymouth, 190 

 Pineapple, 202 

 Pines, 180, 188, 245 



Japanese Umbrella, 187 

 Kauri, 233 

 Pinguicula, 290 



vulgaris, 290 

 Pinks, 213 

 Pirmae, 146 

 Pinnatifid, 146 

 Pinnviaria viridis, 31 

 Pinus, 189 



Govlteri, 190 

 halepensis, 190 

 larico, 190 

 longifolia, 190 

 morUana, 190 

 Pinea, 190 

 strobua, 190 

 aylveslris, 185, 189 

 Pistil, 173 

 Pitcher Plants, 286 

 Pith, 205 

 PityesB, 231 

 Placenta, 212 

 Plankton, 76 

 Flantago, 308 



major, 277 

 Plantain, Broad-leaved, 277 

 Plantains, 308 



Water-, 199 

 Plant-Associations, 359 



PlEUlt-communities, 358 



classification of, 358 

 -formations, 359 

 -hairs, 284-285 

 -Societies, 359 

 Plants, growth of, 274 

 Plasmodium, 9 

 Plewococaua, 116 

 vulgaris, 55 

 Plumbaginales, 215 

 Plumule, 204 

 Poa alpina, 301 

 Poisonous plants, 342 

 Pollen, 172, 315 



of anemophUous plants, 306 

 -tube, 175, 177, 179 

 Pollination, 182, 301 

 by birds, 322 

 by insects, 192, 310 

 by snails, 322 

 by water, 303 

 by wind, 304 

 Pollinia, 321 

 PolyoarpiesB, 212 

 Polypodiacese, 154, 229 

 Polyporua squamosua, 94 

 Polytrichum commune, 267 

 Pondweed, 196, 305 

 curled, 301 

 homed, 196 

 Poplar, Black, 211 

 Lombardy, 211 

 White, 211 

 Poplars, 210, 304 

 Poppies, 213, 342 

 Poppy, capsules of, 329 

 Opium, 337 

 Yellow-horned, 360 

 Populug alba, 211 

 nigra, 211 

 pyramidalia, 211 

 tremvla, 211 

 Pc/oxylese, 231 

 Potamogeton, 196 

 criapua, 301 

 Potato, 19, 299, 337 



-disease, 93 

 Poterium sanguiaorba, 309 

 Prickles, 344 

 Prickly Mountain-Moss, 163 



Pears, 263 

 Primordial utricle, 35, 40 

 Primrose, 205, 208, 215, 277 



