INDEX. 



613 



Platonia, 414. 

 Platycerium, 213. 

 Platycodon, 562. 

 Platystemon, 305. 

 Plectonema, 24. 

 Plectranthus, 541. 

 Pleospora, 130. 

 PleosporaceaB, 130. 

 Pleurandra, 413. 

 Pleuridium, 195. 

 Pleurocarpi, 197. 

 Pleurococcaceas, 47, 51. 

 Plenrococcus, 10, 51, 138. 

 Pleurorhizffi. 400. 

 Pleurotsenium, 4t. 

 Pleurothallis, 332. 

 Pleurotus, 171. 

 Plocamiuin, 83. 

 Plum, 117, 164, 461, 462. 

 Plumbaginaceae, 514. 

 Plumbago, 514. 

 Plumeria, 544. 

 Plumule, 247. 

 Pneumatbodia, 267. 

 Poa, 237, 290, 294, 296. 

 "Pocket-plum," 85. 

 " Pockets," 117. 

 Pod, 466. 

 Pod- pepper, 522. 

 Podalyriese, 469. 

 Podocarpeas, 260. 

 Podocarpus, 251, 255, 261, 



272. 



Podopbyllum, 390. 

 Podosphsera, 120. 

 Podospora, 129. 

 Podostemaceas, 451, 456. 

 Pogostemon, 541. 

 Poinciana, 468. 

 Point Caraway, 498. 

 Polanisia, 406. 

 Polemoniacese, 509, 515. 

 Polemonium, 515. 

 Poliantbes, 318 

 Pollinarium, 332. 

 Pollinia. 329. 

 Pollinodium, 100. 120. 

 Pollen-chamber, 251. 

 Pollen-grain, 240, 244, 



245. 



Pollen-sac, 235, 237, 240. 

 Pollen-tube, 214, 249. 

 Polycarpicse, 377. 

 Polycystis, 24. 

 Polydiuida, 16, 17, 18. 

 Polyembryony, 247. 

 Polygala, 442, 443. 

 Polygalacese, 442. 

 Polygamous, 236. 

 Polygonacese, 239, 359. 

 Polygonatum, 314, 316. 



Polygoniflorae, 358. 

 Polygonum, 359, 360, 361. 

 Polyides, 84. 

 Pofykrikos, 17. 

 Polypetalse, 336. 

 Polyphagus, 103, 104. 

 Polypndiacese, 202, 205, 



206, 209, 210, 212. 

 Polypodium, 207. 213. 

 Polyporacese, 163. 

 Polyporus, 163, 164, 165. 

 Polysipbonia, 79, 83. 

 Polystachya, 332. 

 Polystigma, 125, 127. 

 Polytrichaceas, 197. 

 Polytrichum, 197. 

 Pomaceaj, 456, 462. 

 Poniaderris, 448. 

 Pomalo, 438. 

 Pomegranate, 488, 489. 

 Pomona-fungus, 171. 

 Pond-weed, 279. 

 Poutederia, 316. 

 PoDtederiacese, 308, 316. 

 Poplar, 124, 164, 338. 

 Poppies, 394. 

 Populus, 152, 338. 

 Pore-fungus, 163. 

 Porogames, 273. 

 Poronia, 131. 

 Porphyra, 10, 78. 

 Porphyraceffi, 78. 

 Portulaca, 373. 

 Portulacaceffi, 373. 

 Posidonia, 281. 

 Potamogetou,47, 278, 279. 

 Potamogetonacese, 278, 



279. 



Potato-fungus, 104, 107. 

 Potato-plant, 521, 522. 

 Potentilla, 458, 460. 

 Potentilleas, 458. 

 Poteriuni, 460. 

 Pothos, 304. 

 Pottia, 196. 

 Pottiacete, 196. 

 Pouzolzia, 353. 

 Prasiola, 53. 

 Preissia, 191. 

 Preslia, 539. 

 Primrose, 512. 

 Primula, 511, 512, 513. 

 PriuiulacefB,239, 512, 514. 

 Primulinse, 505, 511. 

 Pringsheimia, 54. 

 Prionium, 284. 

 Pritcbardia, ^98. 

 Priva, 535. 

 Privet, 547. 

 Procarpiurn, 81. 

 Proembryo, 64. 



Profichi, 355. 

 Prornyceliurn, 94, 146. 

 Pronucleus, 245. 

 Prorocentrum, 17, 18. 

 Protea, 450. 

 Proteacese, 450. 

 Prothallium, 198. 244, 248. 



Secondary, 233. 

 Protistse, 5. 

 Protium, 438. 

 Protobasidia, 144. 

 Protobasidiomycetes, 96, 



145. 



Protococcaceas, 47, 48, 51. 

 Protococcoideffi, 8, 47. 

 Protomyces, 108. 

 Protornycetaceae, 108. 

 Protouema, 181. 

 Provence oil, 547. 

 Prunella, 539. 

 Pruuus, 117, 118,127,130, 



152, 461, 462. 

 Psalliota, 167, 168, 1G9, 



171. 



Psamma, 295, 296. 

 Pseudopkacidiacese, 133. 

 Pseudopodiurn, 10, 193. 

 Pseudotsuga, 264, 265, 266. 

 Psidiurn, 488, 489. 

 Psilotaceffi, 228. 

 Psilotum, 201, 228. 

 Psycbotria, 550. 

 Ptelea, 437. 

 Pteridium, 131, 207, 213, 



214. 



Pteridophyta, 2, 198, 234. 

 Pterigynandrum, 197. 

 Pteris, 199, 203, 213, 214. 

 Pterisantb.es, 445. 

 Pterocarpus, 473. 

 Pterocarya, 350. 

 Pterocepbalus, 560. 

 Pterogoniaceaa, 197. 

 Pterogyue, 468. 

 Pterostegia, 360. 

 Pterygophyllum, 197. 

 Ptilidium, 192. 

 Ptilota, 84. 

 Ptychogaster, 166. 

 Pucciuia, 147, 148, 149, 



150. 



Puff-ball, 174. 

 Pulmonaria, 533, 534. 

 Pulque, 318. 

 Pulsatilla, 384. 

 Pumpkin, 4*0, 481. 

 Punctaria, 70. 

 Punica,483, 488, 489, 490. 

 Puuicese, 488. 

 Puschkinia, 312. 

 Putrefaction, 32. 



