418 



INDEX. 



Phyllodes, i. 297 



Phylloideus, ii. 350 



Phyllophore, i. 227 



Phyllum, i. 327 



Physiological chemistry, ii. 160 



Physiology, ii. 132 



Phytozoa, i. 19 



Piceus, ii. 370 



Pictus, ii. 373 



Pileus, ii. 120 



Pili capitati, i. 152 



biacuminati, i. 154 



Malpighiacei, i. 154 



pseudo-Malpighiacei, i. 154 



scutati, i. 158 



subulati, i. 152 



Pilidium, ii. 118 

 Piliferus, ii. 357 

 Pilose, i. 328 

 Pilosity, i. 152 

 Pilosus, i. 152 ; ii. 364 

 Pilula, ii. 9, 24 

 Pilularia, ii. 102 

 Pimpled, ii. 364 

 Pinnate, ii. 360 



, with an odd one, ii. 360 



Pinnatiscissus, ii. 359 

 Pinnatifid, ii. 359 

 Pinnatilobatus, ii. 360 

 Pinnatisectus, ii. 360 

 Pistil, i. 315, 363, 369 

 Pistillidia, ii. 107 



Pita flax, strength of its fibre, i. 63 

 Pitcher, i. 298 



, of a tulip, i. 300 



Pitcher-shaped, ii. 351 



Pitch-black, ii. 370 



Pith, i. 184, 185, 186, 187 



, chambered, i. 189 



, discoid, i. 190 



, mixed, i. 192 



, of nodes, i. 191 



, in roots, i. 187 



Pithy, ii. 367 

 Pits, i. 14 

 Pitted, ii. 363 

 Pivotante, i. 238 

 Placenta, i. 364, 371 



, free central, i. 382 



. , parietal, i. 381 



, its development, i. 386 



Placenta-shaped, ii. 348 

 Placentae, law regarding, i. 373 



, anomalous, i. 375 



Placentation, marginal, i. 389 

 Placentiformis, ii. 348 

 Plaited, ii. 375 

 Plane, ii. 348 

 Plant, definition of, i. 1 

 Plants, their power of selecting food, 

 ii.282 



Plate, ii. 140 



Plateau, i. 180, 364 



Pleurenchym, i 21, 61, 63; ii. 173 



Plicata, ii. 375 



Plicativa, ii. 375 



Plopocarpium, ii. 18 



Plumbeus, ii. 370 



Plumose, i. 328 ; ii. 365 



Plumule, ii. 59, 61, 67 



Pluri, ii. 383 



Poculiform, ii. 352 



Podetia, ii. 118 



Podogynium, i. 364 



Podospermium, i. 364 



Poils en dcusson, i. 158 



en fausse navette, i. 154 



en goupillon, i. 153 



en navette, i. 154 



Point, ii. 356 

 Point-growing, i. 170 

 Pointless, ii. 357 

 Pointleted, ii. 357 

 Poisons, metallic, ii. 150 



, vegetable, ii. 151 



, their action on the vitality of 



plants, ii. 150 

 Polakenium, ii. 23 

 Polarity, i. 165 

 Polexostylus, ii. 20 

 Polish, ii. 365 

 Polished, ii. 365 

 Politus, ii. 365 

 Pollen, i. 338, 342, 350 ; ii. 238 



, origin of, i. 352 



, its development, i. 352 



, its action, ii. 22 



-, its chemical composition, i. 



350 



-, surface of, i. 356 

 -, colour of, i. 360 

 -, in masses, i. 355 

 -, emission of, ii. 218 



Pollen-cells, i. 352 



Pollen-grains, i. 350, 357 



Pollen-granules, figure of, i. 357 



Pollenme, i. 351 



Pollen-tubes, i. 361 ; ii. 223, 235 



Pollex, ii. 368 



Pollicaris, ii. 368 



Pollinaria, ii. 115 



Poly-, ii. 383 



Polyadelphous, i. 341 



Polycarpous, ii. 368 



Polychorion, ii. 19 



Polypetalous, i. 333 



Polyphore, i. 390 



Polysecus, ii. 19 



Pome, ii. 23 



Pomum, ii. 9, 10, 11, 12, 17, 23 



Pores, i. 14 



Porous formations, i. 23 



