466 



INDEX 



Passifloraceae, 369 

 Passion Flower Family, 369 

 Pathogens, 219 

 Paullinia, 5 

 Paullinia Cupana, 358 

 Paulo wnia imperialis, 392 

 Pea Family, 341 

 Peach, 209, 338 

 Pear, 338 



fruit of, 2 10 

 stone cells of, 104 

 Peat mosses, 286 

 Pedaliaceae, 393 

 Pedicel, 178 

 Pedicularis, 392 

 Peduncle, 178 

 Peireskia, 370, 371 

 Pelargonium, 345 

 capitatum, 346 

 odoratissimum, 346 

 Radula, 346 

 Penicillium, 256 



brevicaule, 260, 261 

 camemberti, 259, 260 

 expansum, 260 

 glaucum, 257, 258, 259 

 roqueforti, 259 

 Pentstemon, 189, 393 

 Peony, 325 

 Pepo, 209 



Pepper Family, 310 

 Perianth, 185 

 Periblem, 100, 122 



Pericambium, 37, 124, 126, 127, 128,140 

 Pericarp, 202 

 Pericladium, 167, 377 

 Pericycle, 37, 140 

 Periderm, 147 

 Peridiolum, 279 

 Peridium, 278 

 Perigone, 183 

 Perithecia, 265, 266 

 Permanent mounts, preparation of , 20- 

 30 



Peronosporales, 251 

 Pertusaria, 281 

 Petals, 185 

 Petiole, 167, 168 

 Petroselini Radix, 377 

 Petroselinum, 377 

 sativum, 377 

 Petunia, 391 

 Peziza, 256 



repanda, Fig. of, 256 

 Pezizales, 256 

 Pfeffer, 63 

 Phaeophyceae, 242 

 Phallales, 279 

 Phanerogamia, 292 

 Pharmaceutical Botany, denned, 2 

 Phaseolus lunatus, structure of seed 



of, 217, 218 

 Phaseolus multiflorus, 



cross-sections of root of. 126 

 Phelloderm, 147 

 Philadelphus, 336 

 Phloem, defined, 119 

 internal, 146 

 interxylary, 146 

 intraxylary, 146 

 parenchyma, 101 

 Phloroglucin, 98 

 Phoenix, 295 



sylvestris, 75 

 Photogens, 219 

 Photosynthesis, 40 



denned, 155 

 Phragmidiothrix, 221 

 Phragmites, 409 

 Phycocyanin, 94 

 Phycoerythrin, 94 

 Phycophaein, 94, 242 

 Phycomycetes, 247 

 Phycoxanthin, 242 

 Phyllotaxy, 156 

 Physcia stellaris, Fig. of, 280 

 Physiology, defined, i 

 Physostigma, 198, 344 



