INDEX. 



611 



Orchids, 151. 

 Orchis, 276, 331, 332, 333. 

 Oreobolus, 285. 

 Oreodoxa, 301. 

 Organs of attachment, 4. 

 Origanum, 536, 539, 511. 

 Oniithogalum, 312, 314. 

 Ornithopus, 4(36, 472. 

 Orobauche, 331, 528, 529. 

 Orontiese, 303. 

 Oroutium, 304. 

 Orris-root, 321. 

 Orseille, 142. 

 Orthoplocese. 400. 

 Orthospermeaa, 493. 

 Orthothecium, 197. 

 Orthotrichum, 197. 

 Orthotropous, 242, 213. 

 Oryza, 293. 

 Oryzese, 293. 

 Oscillaria, 10, 23, 24, 26, 



37. 



Oscillariaceae, 24. 

 Osiers, 152. 

 Osmumla, 209, 215. 

 Osmundacere, 202, 210, 



215. 



Ostioles, 73. 

 Ostropa, 133. 

 Ostropacese, 133. 

 Ostrya, 345. 

 Osyris, 500. 

 Ouratea, 439. 

 Ouvirandra, 281. - 

 Ovary, 3, 239, 250. 

 Ovule, 241, 242, 248. 

 Ovuliferous scale, 256, 257. 

 Oxalidaceae, 416. 

 Oxalis, 416. 

 Ox-eye, 572. 

 Oxslip, 513. 

 Oxybaphus, 374. 

 Oxycoccus, 509, 510. 

 Oxyria, 360. 

 Oyster Mushroom, 171. 



Padina, 76. 

 Pffionia, 379, 381. 

 Pseoniese, 381. 

 Paspaiauthus, 309. 

 Palaquium, 511. 

 Palava, 429. 

 Paleas, 209. 

 Pales, 288. 



Palisander-wood, 529. 

 Paliurus, 448. 

 Palm, 275, 276, 297. 



Branching of, 298. 



Inflorescence of, '299. 

 Palm-oil, 301. 

 Pami-wax, 301. 



Palm-wine, 301. 

 Palms, 297. 

 Palmella-stage, 15, 16. 

 Palmyra-palm, 301. 

 Paludella, 197. 

 Pampas-grass, 296. 

 Panama bats, 302. 

 Panax, 491. 

 Pancratium, 317. 

 Pandanaceaa, 302. 

 Pandauus, 302. 

 Pandorina, 45, 48. 

 Panicese, 295. 

 Panicum, 295, 296. 

 Pansy, 411. 

 Panus, 171. 

 Papaveracese, 394. 

 Papaver, 394, 395. 

 Papaw, 476. 

 Papayaceae, 476. 

 Paper-mulberry tree, 354, 



356. 



Papiliouaceas. 335, 468. 

 Pappus, 564, 566. 

 Papyrus, 287. 

 Paradise apple, 465. 

 Paraglobulin, 473. 

 Paraphyses, 88. 

 Paraguay tea, 445. 

 Parasites, 5. 

 Parasites, eudophytic, 85. 



endozoic, 85. 



epiphytic, 85. 



epizoic, 85. 



facultative, 84. 



obligate, 85. 



pathogenic, 85. 

 Parasitic Bacteria, 38. 

 Parasol-fungus, 171. 

 Pariana, 291. 

 Parietaria, 353. 

 Paris, 309, 314, 316. 

 Paritium, 430. 

 Parkia, 475. 

 Parmelia, 140, 141, 142, 



143. 



Parnassia, 453. 

 Paronychia, 365, 367. 

 Paronychiese, 366. 

 Parrotia, 455. 

 Parsley, 494, 498. 

 Parsnip, 492, 496, 493. 

 Parthenogenesis, 14. 

 Pasanea, 346 348. 

 Paspalum, 295. 

 Pasta guarana, 441. 

 Pastiuaca, 493, 496. 

 Passerina, 449. 

 Passiflora, 475, 476. 

 Passirloracese, 476. 

 Passifloriuee, 475. 



Passion-flower, 476. 

 Patellaria, 134. 

 Patellariacta?, 134. 

 Patellea, 134. 

 Paternoster peas, 470. 

 Pathogenic Kod-Bacteria, 



39. 



Patriuia, 557. 

 Paullinia, 441. 

 Paulownia, 527. 

 Pavonia, 428. 

 Paxillei, 172. 

 Payena, 511. 

 Paypayrolese, 411. 

 Pea, 470. 



Peach, 117, 121, 461. 

 Pear, 130, 464, 465. 

 Pedagnuoli, 355. 

 Pedaliacese, 518, 529. 

 Pediastrum, 52. 

 Pedicularis, 151, 526. 

 Peganum, 438. 

 Pelargonium, 418, 419. 

 Peliosanthes, 320. 

 Pellia, 191, 192. 

 Pellitory, 353. 

 Peltigera, 143. 

 Pelvetia, 73. 

 Penicillium, 122, 123. 

 Peuium,43, 44. 

 Peunisetum, 235. 

 Penny-cress, 401. 

 Penny-wort, 493. 

 Pentacyclicae, 505, 506. 

 Pentadesma, 414. 

 Pentapera, 505. 

 Pentstemou, 524, 527. 

 Peplis, 47, 483. 

 Pepper, 361. 

 Peppermint, 541. 

 Peperomia, 361, 362. 

 Pepperwort. 401. 

 Pereskia, 375, 376. 

 Perianth, 235. 

 PericliEbtium, 192. 

 Pericarp, 249. 

 Pericallis, 574. 

 Peridermium, 147, 118, 



153, 154, 155, 156. 

 Peridinea, 1. 14, 17. 

 Peridiuin, 16. 

 Peridinium, 17. 

 Peridiola, 176. 

 Peridium, 88, 89, 147. 

 Perigynium, 189. 

 Perilla, 541. 

 Periphyses, 88. 

 Periplasrn, 104. 

 Periploca, 546. 

 Peri sperm, 249. 

 Perisporiaceaj, 122. 



