INDEX. 



Perichaetial, 641 

 Pericladium, 97 

 Periderm, 58 

 Perigone, 193 

 Perigynium, 209 

 Perigynous, 213, 246 

 Periodical phenomena 



in plants, 263 

 Perisperm or albumen, 



254. 327. 331 

 Penspermic, 343 

 Peripherical, 341 

 Periploca, 536, 

 Penspore, 335 

 Peristomatic, 28 

 Peristome, 641 

 Perithecia, 268 

 Peritropous, 257 

 Periwinkle, 537 

 Permian fossils, 744 

 ■ Pemambuco-wood, 482 

 Persea, 569 

 Persian flora, 685 

 Persimon, 528 

 Persistent, 211, 248 

 Personate, 207 

 Persoonia, 570 

 Pertuse, 81 

 Perulse, 109 

 Peruvian cherry, 549 

 Petaline hairs, 201 

 Petaloidese, 601 

 Petals, 200 



anomalies in, 209 



Petiolary, 98, 120 

 Petiolate, 339 

 Petiole, 82, 94 

 Petioles, anomalous 



forms of, 99 

 Petiolules, 92 

 Petiverieae, 563 

 Petroselinum, 507 

 PettigreVs views on 



circulation in plants, 



147 



Peumos, 589 



Pence, 748 



Peziza, 649 



Phacelia, 542 



Phseosporeae, 653 



Phalaris, 631 



Phallus, 650 



Phanerogamous, 171 



plants, 425 



plants essential 



organs of, 264 



plants,, fertilisa- 

 tion in, 281 



Pharbitis, 543 



Phascum, 643 



Phaseolese, 478 



Phaseolites, 754 



Phaseolus, 481 



Philadelphacese, 489 



Philesia, 617 



Philippodendron, 450 



Philydrum, 619 



Phillyrea, 533 



Phleum, 631 



Phlorizin, 166 



Phlox, 541 



Phoenicites, 754 



Phoenix, 621 



Phoranthium, 173 



Phormium, 615 



Phosphorescent aga- 

 rics, 389 



Phragmata, 244 



Phycochrome, 646 



Phylica, 472 



Phylla, 195 



Phyllanthus, 580 



Phyllaries, 190 



Phyllocladus, 597 



Phyllodium, 96 



Phyllogen, 67 



Phylloid, 173 



Phyllolobeae, 476 



Phyllophor, 67 



Phyllotaxis, loi 



fractions in, 104 



of acotyledons, 



107 



of bracts, 189 



of dicotyledons, 



107 

 • of monocotyle- 

 dons, 107 



of palms, 108 



■ of pines, 108 



Physalis, 549 

 Physic-nut, 582 

 Physiognomic plants, 



675 



Physomyces, 649 



Physomycetes, 649 



Physostigma, 481 



Phytelephas, 622 



Phytochlor, 258 



Phyto-geographic Re- 

 gions, 678 



Phytolaccacese, 563 



Phytons, log, 362 



Phytozoa, 265 



Phytozoids, 234 



Piassaba, 622 



Picea, 599 



Picotees, 445 



Picrsena, 469 



Picrotoxin, 430 



Pietra fungaia, 650 



Pig-nut, 507 



Pigs' -faces, 500 



Pileorhiza, 38 



Pileus, 647 



Pili, 30 



Pilocarpus, 467 



Pilose, 33, 199 



Pilularia, 640 



Pimenta, or Pimento, 

 492 



Pimpinella, 508 • 



Pinakenchyma,. 4 



Pinaster, 599 



Pinckneya, 513 



Pine-apple, 316, 613 

 ■Pines, phyllotaxis of, 

 108 



Pin-eyed, 212 



Piney resin, 451 



Piney tallow, 451 



Pinguicula, 383, 557 



Pinites, 739, 754, 757 



succinifera, 754 



Pink, 445 

 Pink-root, 539 

 Pinnate, 92 

 Pinnatifid, 86, 201 

 Pinnatipartite, 87 

 Pinus, 599 

 Pinus fossil, 75s 

 Piper, 591 

 Piperaceae, 590 



Region of, 686 



Piratinera, 587 

 Piscidia, 481 

 Pisonia, 561 

 Pissadendron, 739 

 Pistacia or Pistachio- 

 ■ nuts, 473 

 Pistese, 685 

 Pistil, igi, 211, 234 



mature, 298 



Pistillary corcis, 240, 



252 

 Pistillate, 36S 

 Pistillidium, 250, 265 

 Pistilliferous, 212, 264, 



368 

 Pisum, 478 

 Pita flax, 612 

 Pitch, 598 

 Pitcher, 3S3 



of Cephalotus, 



504 



• of Darlingtoma, 



384 

 of Discidia, 504 



of Marcgraavia, 



290 



of Nepenthes, 504 



of Sarracenia, 504 



plant, 578 



Pith, so, 52, 75 

 Pitted vessels, 20 

 Pittosporaceae, 465 

 Pitus, 739 

 Placenta, 240, 315 



attachment of 



seeds to the, 329 



axile, 243 



central, 241 



formation of, 241 



free central, 243 



marginal, 241 



■ parietal, 242 



Placentaries, 240 

 Placentation, 243 

 Plaited, iii 

 Plane-trees, 594 



of Scotland, 458 



Planera, |85 

 PlantEe tristes, 262 

 Plantaginaceae, 559 

 Plantago, 560 

 Plantain, 608 

 Planting of trees, 78, 



136 

 Platanaceag, 593 

 Platanus, 594 

 Platylobeas, 436 

 Platystemon, 433 

 Plectranthus, 554 

 Pleiotrachese, 18 

 Pleospora, 651 

 Plerandra, 509 



847 



Pleurenchyma, 16 

 Pleurisy-root, 536 

 Pleurocarpi, 643 

 Pleurorhizeae, 340, 435 

 Plicate, III 

 Pliocene flora, 756 

 Plocaria, 655 

 Plum, 311, 485 

 Plumbaginaceae, 559 

 Plumbago, 559 

 Plumose, 199 

 Plumule and radicle, 



334 

 or ascending axis, 



334 

 Poa, 631 

 Pod, 312 

 Podalyrieae, 478 

 Podocarp, 305 

 Podocarpus, 599 

 Podophyllum, 428 

 Podosperm, 253 

 Podostemaceae, 588 

 Podostemon, 588 

 Pogostemon, 554 

 Poison-elder, 474 



ivy. 474 



oak, 474 



sumach, 474 



■ vine, 474 



Poisoning plants in 



herbarium, 8or 

 Poisons, effect of, on 



plants, 133 

 Poke, 563 

 Polar fossil flora, 756 



zone, plants of, 



69s 



Polariser^ 769 

 Polemoniacese, 541 

 Polianthes, 614 

 Pollatd-trees, 113 

 Pollen, 216, 226 

 1 application to the 



stigma, 282 

 carried by insects 



and wind, 284 

 coverings of, 230 



duration of vita- 

 lity of, 291 



grains, forms, and 



number of, 232, 282 



granules, 231 



■ ■ masses, 229 



scattering of, 282 



tube, 233 



■ ■ tubes, extent to 



which they jtene- 

 trate, 295 



tubes in gymno- 



sperms, 293 



tubes, number of, 



233 . , 



utricle, 228 



Pollinia, 229, 286 

 Polyadelphous, 219 

 Polyandrous, 216 

 Polycarpic, 359 

 Polycarpon, 445, 499 

 Polychroit, 609 

 Polycotyledonous, 338 

 Polyembryony, 331 



