CLASSIFICATION AND NOMENCLATURE. 



799 



Petunia, 509 (Fif?.324),649. 

 Peucedaneee, 626. 

 Peucedanum, 626. 

 Peyssonuelia, 272. 

 Peziza, 299, 303 (Fig. 213). 

 Pezizaceae, 303 (Fig. 213). 

 PhacidieaB, 303. 

 Phacotus, 237. 

 Phasogamce, 257, 262. 

 PhaBopbycese, 221, 255. 

 Pheeophila, 248. 

 PhaeosporesB, 257, 258. 

 Phajiiiiae, 564. 

 Phalarideae, 548. 

 PLalaris, 548. 

 Pballoideae, 313, 319. 

 Phallus. 319 (Fig. 225). 

 Phanerogamia, 217, 431. 

 Phascaceas, 368. 

 Phascura, 330, 368. 

 Phaseoleae, 637. 

 Phaseolus, 637. 

 Pheasant's Eye, 592. 

 Pheasant's Eye Narcissus, 



568. 

 Phegopteris, 405. 

 Philadelpbese, 639. 

 Philadelphus, 506, 639. 

 Phillyrea, 652. 

 Philodeiidroidese, 540. 

 Phlebia, 313. 

 Phleura. 548. 

 Phlox. 648. 

 Phcenix, 534 (Fig. 345), 



543, 544 (Fig. 352). 

 Pholiota, 313. 

 Phorniiuu), 558. 

 Photiiiia, 635. 

 Phragmicoma, 347, 352. 

 Phragmidiopsis, 307. 

 Phragmidium, 307. 

 Phragmites, 549. 

 Phucagrostis, 553. 

 Phycochiomaceee, 221,231. 

 Phycomyces, 289. 

 Phy corny cetes, 275, 280, 



285. 

 PhyllantbetE, 621. 

 Phyllanthus, 622. 

 Phylliscium, 321. 

 Phyllitis, 257, 262. 

 Phyllobiura, 236. 

 Phyllocactus, 629. 

 Phyllocladus, 463, 487. 

 Phyllodoce, 655. 

 Pbylloglossum, 421. 

 Phyllophora, 272. 

 Phyllosiphon, 238, 240. 

 PhyllosiphoneaB, 240. 

 Pbyllospadix, 553. 

 Physalis, 649. 

 V. S. B. 



Pbyscia, 321. 



Physcomitrella, 368. 

 PbyscomitrellaceaB, 368. 

 Pbyscomitrium, 370. 

 Pbysoderma, 310. 

 Physoschoeuus, 553. 

 Physospermum, 626. 

 Pbysosiigma, 637. 

 Physureae, 567. 

 Pbytelepbantinse, 544. 

 Phytelephas, 544. 

 Phyteuma, 657. 

 Phytolacca, 587 (Fig. 393). 

 Phytolaccaceae, 513, 573, 



587. 

 Phytophthora. 291 (Figs. 



201, 202, 203), 292. 

 Phytophysa, 240. 

 Picea. 472 (Fig. 298), 473 



(Fig. 299), 476 (Fig. 



301), 484. 

 Picris, 665. 

 Pilacre, 315. 

 Pilacre®, 312, 315. 

 Pilobolus, 289. 

 Pilostyles, 589. 

 Pilularia, 406, 410, 415. 

 Pimpernel, 653. 

 Pimpinella, 625. 

 Pinaster, 485. 

 Pine, 485. 

 Pinea, 485. 



Pine-apple, 561 (Fig. 365). 

 Pinguicula, 647. 

 Pink, 599. 



Pinnularia, 258 (Fig. 184). 

 Pinoideae, 483. 

 Pinus, 468 (Fig. 297), 475 



(Fig. 300), 482 (Fig. 



304), 485. 

 Piper, 526, 576. 

 Piperaceae. 573, 576. 

 Piperales, 573, 576. 

 Piptocephalideae, 287. 

 Piptocephalis, 289. 

 Pistacia, 618. 

 Pistachio-Kernel, 618. 

 Pistia, 541. 

 Pistillaria, 315. 

 Pistioideae, 541. 

 Pisum, 637. 

 Pithophora, 241. 

 Pittosporaceae, 574, 640. 

 Pittosporum, 641. 

 Plagiocbasma, 336, 342. 

 Plagiochila,346 (Fig. 244), 



352 

 Plane, 638, 



PlanoblastaB, 291, 292. 

 PlantaginaceaB, 575, 645. 

 Plantago, 646 (Fig. 446). 



Plantain, 562, 646. 

 Plasmodiopboreae, 285. 

 Platanaceae, 574, 638. 

 Platanus, 638 (Fig. 438). 

 Platycerium, 389, 405. 

 Platycodon, 657. 

 Platyphylleae, 352. 

 Pleospora, 276, 278, 301. 

 Pleuridium, 368. 

 Pleurocarpae, 371. 

 Pleurocladia, 262. 

 Pleurococcaceae, 236. 

 Pleurococcus, 236 (Fig. 



166). 

 Pleurorbizeae, 604. 

 Plocamium, 267, 272. 

 Plumbaginaceae, 575, 654. 

 Plumbago, 654. 

 Plume-thistle, 664. 

 Poa, 549. 

 Podalyrieae, 636. 

 Podocarpe*, 469, 487. 

 Podocarpus, 465, 487. 

 Podophyllum, 595. 

 Podosplia3ra, 298. 

 Podostemaceae, 574, 641. 

 Pogonatum, 370. 

 Pogoniris, 569. 

 Pogostemon, 642. 

 Poinsettia, 493, 622. 

 Polemoniaceas, 575, 648. 

 Polemoniales, 575, 647. 

 Polemonium, 648. 

 Polybotrya, 390, 405. 

 PolycarpeaD, 600. 

 Polycarpon, 600. 

 Polychidium. 321. 

 Polygala, 617 (Fig. 419). 

 Polygalace®, 520,574,617. 

 Polygonaceffi, 501, 573, 



597. 

 Polvgouatum, 558. 

 Polygonum. 489, 500, 597 



(Fig. 402). 

 Polyides, 272. 

 Polypetalae, 573, 591. 

 Polyphagus, 286. 

 Polypodiaceae, 379, 381, 



391. 404. 

 PolypodieaB, 391, 40."). 

 Polypodium, 388, 389 (Fig. 



267), 400 (Fig. 267), 



405. 

 Polyporeae, 312, 316. 

 Polyporus, 313, 316 (Fig. 



221). 

 Polysaccum, 318. 

 Polysiphonia, 224 (Fig. 



161), 268, 272. 

 Poly stigma, 296, aOl. 

 PolytrichaceaB, 357, 370. 

 3 F 



