480 INDEX OF ORDERS AND GENERA. 
Niebuhria, 12. 
Niebuhria, 12. 
Niphobolus, 467. 
Nivenia, 331. 
Noltea, 56. 
Notochleena, 467. 
Nuxia, 249. 
Nycterinia, 267. 
Nycracine#, 308. 
Nympheea, 4. 
NYMPH ACER, 4. 
Obione, 318. 
Ochna, 46. 
OcHNACER, 46, 
Ocimeze, 303. 
Ocimum, 303. 
Odina, 63. 
Cidera, 181. 
Qinanthe, 141. 
Qinothera, 118. 
OLACINE®, 49. 
Oldenburgia, 205. 
Olea, 219. 
Oleandra, 466. 
Olfersia, 468. 
Oligocarpus, 200. 
Oligodora, 195. 
Oligomeris, 13. 
Oligothrix, 196. 
Olinia, 114. 
Ommatodium, 368. 
ONAGRARIEA, 116, 
Oncinema, 234, 
Oncoba, 14. 
Ophiocaulon, 121. 
Ophioglossum, 470. 
Ophrydeee, 361. 
Oplismenus, 436. 
ORCHIDACE®, 356. 
Oreodaphne, 328. 
Ornithogalum, 397. 
Ornithoglossum, 405, 
OROBANCHE®, 274. 
Orphium, 251. 
Orygia, 132. 
Osbeckia, 118. 
Osmites, 195. 
Osmitopsis, 196. 
Osmunda, 468. 
Osteospermum, 201. 
Osyridocarpus, 333. 
Osyris, 333. 
Othonna, 198. 
Otochlamys, 186, 
Ovieda, 373. 
Oxalides, 39. 
Oxalis, 39. 
Oxyanthus, 150. 
Oxygonum, 309. 
Pachites, 362. 
Pachycarpus, 234. 
Pachypodium, 247. 
Pachyrhynchus, 190. 
Patm#m, 390. 
Palmstruckia, 10. 
Panax, 147. 
Pancratium, 384, 
Panicum, 436. 
Panicum, 437. 
Papaver, 5. 
PAPAVERACER, 5. 
Papilionaceze, 70. 
Pappea, 145. 
Pappophorum, 452. 
Parapodium, 232. 
Parastranthus, 211. 
Parinarium, 94. 
Paritium, 30. 
Parkinsonia, 89. 
PARONYCHIER, 319. 
Paspalum, 435. 
Passerina, 326. 
PASSIFLORE®, 120. 
Pastinaca, 144. 
Pauridia, 385. 
Pavetta, 153. 
Pavonia, 29. 
Pedalineze, 277. 
Peddiea, 324. 
Pegolettia, 177. 
Pelargonium, 40. 
Peliostomum, 266. 
Pelleea, 464. 
Peltophorum, 90. 
Pensa, 321. 
PEN MACE, 321, 
Peneeeze, 321. 
Pennicillaria, 437. 
Pennisetum, 438. 
Pentanisia, 154. 
Pentarrhinum, 236, 
Penthea, 366. 
Pentzia, 186. 
Peperomia, 350. 
Perdicium, 206. 
Periboea, 394. 
Periglossum, 238. 
Periploceze, 230. 
Peristrophe, 286. 
Peristylis, 362. 
Perotis, 439. 
otriche, 192. 
Petalacte, 193. 
Petalidium, 282. 
Petroselinum, 138. 
Peucedanum, 143. 
Peyrousea, 186. 
Phalaris, 444. 
Pharbitis, 254. 
Pharnaceum, 132. 
Pharnaceum, 133. 
Phaseolez, 83. 
Phaylopsis, 283. 
Phelipzea, 274. 
Philippia, 217. 
Phoberos, 165. 
Phoenix, 391. 
Phoenocoma, 193. 
Phragmites, 452. 
Phygelius, 264. 
Phylica, 57. 
Phyllanthus, 341. 
Phyllanthus, 341. 
Phyllopodium, 267. 
Phymaspermum, 1838. 
Phymatodes, 467. 
Physalis, 257. 
Phytolacca, 311. 
PHYTOLACCE®, 310. 
Piaranthus, 243. 
Pimpinella, 139. 
PIPERACER, 349. 
Piptoleena, 245. 
Pireunia, 311. 
Pisosperma, 126. 
Pistia, 389. 
PirrTosPoREs#, 19. 
Pittosporum, 20. 
PLANTAGINEA, 223. 
Plantago, 223. 
Platycarpha, 169. 
Platylepis, 421. 
Platylophus, 98. 
Plectranthus, 304. 
Plectronia, 153. 
Pleiospora, 73. 
Pleiostemon, 341. 
Pleopeltis, 476. 
Plinthus, 132. 
Plocandra, 251. 
Plukenetia, 339. 
Plukenetia, 339. 
PLUMBAGINE®, 296. 
Plumbago, 295. 
Poa, 455. 
Podalyria, 71. 
