480 



INDEX OF ORDERS AND GENERA. 



Niebuhria, 12. 

 Niebuhria^ 12. 

 Nipkobolufi, 467. 

 Nivenia, 331. 

 Noltea, 56. 

 Notochlasna, 467. 

 Niixia, 249. 

 Nyctcrinia, 267. 

 Nyctagixe,12, 308. 

 ls;yTnplia3a,, 4. 

 Nymphs ACEiE, 4, 



Obione, 313. 

 Ochna, 46. 



OcHNACEiE, 46. 



Ocimese, 303. 

 Ocimum, 303. 

 Odina, 63. 

 CELlora, 181. 

 (Enantbe, 141. 

 (Enothera, 118. 

 Olacixeje, 49. 

 Oldenbiirgia, 205. 

 Olea, 219. 

 Oleandra, 466. 

 Olfersia, 468. 

 Oligocarpus, 200. 

 Oligodora, 195. 

 Oligomeris, 13. 

 Oligotbrix, 196. 

 Olinia, 114. 

 Ommatodium, 368. 

 Onagrarie^ts, 116. 

 Oncinema, 234. 

 Oncoba, 14. 

 Ophiocaiilon, 121. 

 Ophioglossum, 4 70. 

 Opbrydese, 361. 

 OpUsmemci^, 436. 



ORCHIDACEiE, 356. 



Oreodaphne, 328. 

 Omithogalum, 397. 

 Omithoglossum, 405, 

 Orobanche^, 274. 

 Orphiiim, 251. 

 Orj'gia, 132. 

 Osbeckia, 113. 

 Osmites, 195. 

 Osmitopsis, 196. 

 Oriinunda, 468. 

 Ostcospcrmum, 201. 

 OsA'ridocarpus, 333. 

 Osyris, 333. 

 Otiionna, 198. 

 Otochlamys, 186. 

 Ovieda, 373. 



Oxalide.T, 39. 

 Oxalis, 39. 

 Oxyanthus, 150. 

 Oxygonum, 309. 



Pachites, 362. 

 Pachycarpus, 234. 

 Pachj^oodium, 247. 

 Pach vrhynchus, 190. 

 Palm.e, 390. 

 Palms truckia, 10. 

 Panax, 147. 

 Pancratium, 384. 

 Panicum, 436. 

 Panicimi, 437. 

 Papaver, 5. 

 Papaveraceje, 5. 

 PapilionacesB, 70. 

 Pappea, 145. 

 Pappophorum, 452. 

 Parapodium, 232. 

 Parastranthus, 211. 

 Parinarium, 94. 

 Paritium, 30. 

 Parkinsonia, 89. 

 Paronychie^, 319. 

 Paspalum, 435. 

 Passerina, 325. 

 Passiflore.ts, 120. 

 Pastinaca, 144. 

 Paviridia, 385. 

 Pavetta, 153. 

 Pavonia, 29. 

 Pedalineae, 277. 

 Peddiea, 324. 

 Pegolettia, 177. 

 Pelargoniiun, 40. 

 Peliostomum, 266. 

 Pella-a, 464. 

 Pcltophorum, 90. 

 Pensea, 321. 



PENiEACEv^, 321. 



Penaaeas, 321. 

 Pennicillaria, 437. 

 Pennisetura, 438. 

 Pentanisia, 154. 

 Pentarrhinum, 236. 

 Penthea, 366. 

 Pentzia, 186. 

 Peperomia, 350. 

 Perdiciiim, 206. 

 Periboea, 394. 

 Periglossum, 233. 

 Periplocea', 230. 

 Peristrophe, 286. 

 Peristylis, 362. 



Perotis, 439. 

 IVrotriche, 192. 

 Petalactc, 193. 

 Petalidium, 282. 

 Petrosclinum, 138. 

 Peucedanum, 143. 

 Peyrousea, 186. 

 Phalaris, 444. 

 ■Pharbitis, 254. 

 Phamaceum, 132. 

 Pharnaceum, 133. 

 Phaseolete, 83. 

 Phaylopsis, 283. 

 Phelipaea, 274. 

 Pbilippia, 217. 

 Phoberos^ 15. 

 Phamix, 391. 

 Phcjenocoma, 193. 

 Phragmites, 452. 

 Pbygelius, 264. 

 Phyiica, 57. 

 Phyllanthus, 341. 

 Phyllanihm, 341. 

 Phyllopodium, 267. 

 Phymaspermum, 183. 

 Phymatodes, 467. 

 Pbysalis, 257. 

 Phytolacca, 311. 

 Phytolacce.b, 310. 

 Piaranthus, 243. 

 Pimpinella, 139. 

 Piperace.e, 349. 

 Piptolajna, 245. 

 Pircunia, 311. 

 Pisosperma, 126. 

 Pistia, 389. 

 Pittospore^, 19. 

 Pittosporum, 20. 

 Plaxtagixe.'e, 223. 

 Plantago, 223. 

 Platycarpha, 169. 

 Platylepis, 421. 

 Platylophiis, 98. 

 Plectranthus, 304. 

 Plectronia, 153. 

 Pleiospora, 73. 

 Pleiostemon, 341. 

 PhopeUis, 476. 

 Plinthus, 132. 

 Plocandra, 251. 

 Plukonetia, 339. 

 Plukenetia, 339. 



PLrMRAGINEiE, 295. 



Plumbago, 295. 

 Poa, 455. 

 Podalpia, 71. 



