XNDEX NOMINUM GENERICORUM. Aig 
Plantago, 46. 
Platanus, 3935. 
Plectranthus, 88. 
Pleomele, 245, 
Plumbago, 122. ^ 
Plumeria, 148. 
Poa, 20. 
Podophyllum, 376. 
Poinciana, 326. 
Polemonium, 125. 
Polianthes, 251. 
Polycarpon, 297. 
Polycnemum, 15. 
Polygonum, 258. 
Polypodium, 402. 
Polytrichum, 405. 
Populus, 395. 
Portlandia, 65. 
Potamogeton, 68. 
Potentilla, 562. 
Poterium, 360. 
Pothos, 262. 
Prasium, 89. 
Prenanthes, 180. 
Primula, 117. 
Prinos, 215. 
Protea, 48. 
. Prunella, 8g. 
Prunus, 356. 
Psidium, 555. 
Psoralea, 532. 
Ptelea, 68. 
Pteris, 402. 
Pteronia, 188. 
Pulmonaria, 115. 
Punica, 354. 
Q. 
Quercus, 392. 
R 
Ranunculus, 572. 
*Raphanus, 275. 
Rauvolfia, 146. 
Reseda, 345. 
Rhamnus, 139. 
Rhapis, 264. 
Rheum, 257. 
Rhexia, 365. 
Rhinanthus, 96. 
Rhodiola, 308. 
Rhododendron, 287. 
Rhus, 169. 
Ribes, 555. 
Ricinus, 589. 
Rivina, 67. 
Robinia, 556. 
Rosa, 358. 
Rosmarinus, 72. 
Royena, 285. 
Rubia, 59. 
Rubus, 3564. 
Rudbeckia, zo6. 
Ruellia, 102, 
Rumex, 257. 
Ruscus, 255. 
Ruta, 320. 
S 
&accharum, 17. 
