INDEX 



399 



Olacaceae, 120, 121 



Oleaceae, 120, 138, 140, 183, 259 



Oleic acid, 120, 122 



Oligopolysaccharides, 136 



Oligosaccharides, 143-150 



Onion, 174, 290 



Opium, 335 



Optimal proportions, 72, 73 



Orchids, 137 



Organic acids, 288 



Ornithine, 106 



Orthoptera, 99 



Oscillatoria, 53 



Oxahdaceae, 142, 226 



Oxalis, 226 



Oxaloacetic acid, 104 



Oxygonum, 229 



Pachycereus, 255 



Pachyrrhizus, 197 



Padina, 140 



Paeonia, 153 



Paired affinity values, 338 



Pahnaceae, 281 



Palmae, 121, 133, 165 



Pahnitic, 120 



Palms, 137 



Pangium, 184 



Papain, 53 



Papaver, 215, 307 



Papaveraceae, 105, 120, 158, 165, 170- 



172, 175, 287, 289 

 Papaverales, 105 

 Papaverin, 158 



Paper chromatography, 92, 328 

 Papilionoideae, 86, 109, 110 

 Paracentrotus, 139 

 Parallelism, 27, 29 

 biochemical, 57 

 Parietales, 271 

 Parkia, 86, 87 

 Parnassia, 138 

 Parrotia, 104 

 Parsley, 139 



Partheniol, 266 



Parthenium, 264, 266 



Passiflora, 186 



Passifloraceae, 186 



Pear, 95, 306 



Pectin, 151 



Pedaliaceae, 120 



Pelargonidin, 199 



Pelargonium, 202, 289 



Pelliciera, 271 



Pelvetia, 114, 140 



Penicillium, 225, 228, 246 



Pentose, 137, 147, 150 



Peppermint oils, 242 



Pepsin, 53 



Peptides, 113 



Percentage of frequency rule, 43, 168 



Perezia, 227 



Petunia, 89 



Petunidin, 200 



PetroseUnic acid, 133 



Petroselinum, 133 



Petteria, 86 



Phaeophyceae, 275 



Phaeophyta, 275 



Phalarideae, 149 



Phalaris, 147 



Phaseoleae, 86, 142, 210 



Phaseolus, 62, 81, 83, 95, 115, 205, 



207, 289, 315, 316 

 Pheasant, 302 

 PheUandrene, 232, 308 

 Phellodendron, 105 

 Phenolic substances, 191-221, 282 

 Phenols, 290 

 Phenylalanine, 94, 196 



peptides, 74 

 Pherosphaera, 245 

 Phlein, 150 

 Phleum, 147, 150 

 Phloretin, 196 

 Phloridzin, 191, 212, 306 

 Phloroglucinol, 193 

 Phlox, 108 

 Phosphorescence, 57 

 Photoreactive pigments-table showing 

 distribution, 273-274 



