Pterococcus, Pall. 504 

 Pterococcus, Hassk. 281 

 Pterocema, DC. 714 

 Pterocymbium, li. Br. 362 

 Pterodiscus, Hooker. (j70 

 Pterodon, Vo(Ki- 555 

 Pterogonium, Sicartz. 67 

 Pterogyne, Tulasne. 556 

 Pteroleeiia, DC. 364 

 Pterolepis, DC. 119, 733 

 Pterolobium, Andrz. 354 

 Pterolobiiim, R. Br. 555, 711 

 Pteroloma, iSteud. 358 

 Pterolophus, Ca5*. 714 

 Pteromarathrum, Koch. 779 

 Pteroneuron, DC. 354 

 Pteronia, Z,i?i». 710 

 Pteronospora, Corda. 43 

 Pteropappus, LfS*. 709 

 Pterophora, Neck. 710 

 Pterophoms, Vaill. 710 

 Pterophylla, Do>j. 572 

 Pterophyllum, Nidt. 428 

 Pterophyllus, Lerelll. 41 

 Pterophj-ton, Caw. 711 

 Pteropodium, DC. 677 

 Pteropogon, Z?C. 713 

 Pteropsis, Presl. 79 

 Pteroscleria, iV'e*?*. 119 

 Pteroselinum, Reiclib. 778 

 Pteroselinum, Hoffm. 778 

 Pterospermum, Schreb. 364 

 Pterospora, iV»». 452 

 Pterostegia, Fwc/i. et Mey. 504 

 Pterostelma, TFt^r/ii. 627 

 Pterostigma, Benth. 685 

 Pterostoechas, Crinq. 661 

 Pterostylis, jR. Br. 182 

 Pterostyrax, Sleb. et Z. 593 

 Pterota, P. Br. 473 

 Pterotheca, Cass. 715 

 Pterotheca, Pre*;. 119 

 Pterothrix, DC. 713 

 Pteroti-opis, DC. 354 

 Pterotum, Zowr. 795 

 Pterula, Fries. 43 

 Pterygium, Corr. 394 

 Pterygocarpus, Hochs.()'It 

 Pterygodium, Swz. 182 

 Pterygophyllum, Brid. 67 

 Pterygota, Sch. 362 

 Ptilepida, fia/f«. 712 

 Ptilidae, 60 

 Ptilidium, Nees. 60 

 PtUimnium, Rafin. 773 

 Ptilina, i\'u«. 575 

 Ptilochaeta, Nccs. 119 

 Ptilochasta, Turcz. 562 

 Ptilocladia, Sonder. 796 

 Ptilocnema, i)o«. 181 

 PtUomeris, ^•^<«. 712 

 Ptilonella, iV««. 712 

 Ptilophyllum, Nutt. 723 

 Ptilostemon, C'a*-*. 714 

 Ptilostephium, //. B. K. 712 

 Ptilota, Ag. 10, 24 

 Ptilotricbum, C A. Meij. 354 

 Ptilotus, R. Br. 511 

 Ptilurus, i>o?i. 714 

 Ptycanthera, Dec. 626 

 Ptychanthus, Nees. 59 

 Ptychocarpa, A*. Z?r. 533 

 Ptychocarya, R. Br. 119 

 Ptychochilus, Schemer. 183 

 Ptychodea, TFiWd. 765 

 Ptychodon, Klotzch. 575 

 Ptychogaster, Corda. 42 

 Ptychophyllum, i>t'«;. 80 

 Ptycbosema, Benth. 554 

 Ptychospemia, Labill. 138 

 Ptychostigma, Iloehst. 764 

 Ptychostomum, Ilonisch. 07 

 Ptychotis, A'ot7^. 778 

 Ptyxanthus, />o«. 632 

 Ptyxostoma, FaA^. 785 



INDEX OF CLASSES, &c. 



Puccinia, Pers. 42 

 Puccinisei, 42 

 Pueraria, DC. 555 

 Pugionium, Giirtn. 513 

 Pukateria, Raoul. 783 

 Pulicaria, Giirtn. 710 

 Pulina, Adans. 50 

 Pulmonaria, Hoffm. bQ 

 Pulmonaria, Tourn. 656 

 Pulsatilla, Toitn*. 427 

 Pulsatilloides, J9C. 428 

 Pultensea, Smith. 553 

 Pultenese, 553 

 Pulveraria, Achar. 50 

 Pulveraria, Willd. 50 

 Pulveraridye, 50 

 Pumilea, P. Br. 347 

 Punctaria, Grey. 22 

 Pupalia, Mart. 511 

 Purkingia, Presl. 648 

 Purshia, i)C. 565 

 Purshia, Dentist. 685 

 Purshia, iioAn. 723 

 Purshia, Spreng. 656 

 Purslanes, 500 

 Puschkinia, Adans. 205 

 Putaminea, L. xxxiii 

 Putoria, Per*. 764 

 Putranjiva, Wall. 282 

 Putranjiveae, i'ftrf^. 274 

 Putterlickia, Endl. 588 

 Puya, Molin. 148 

 Pycnanthemum, Benth. 061 

 Pycnapophysium, Reichb. 67 

 Pycnocephalum, DC. 709 

 Pycnocomon, Wallr. 700 

 Pycnocycla, ifo^/^e. 779 

 Pycnoneurum, Z>ec. 626 

 Pycnophycus, Kutz. 10 

 Pycnopo'dium, Corda. 43 

 Pj'cnosorus, Benth. 712 

 Pycnospermese, 10 

 Pycnospora , -B. -Br. 555 

 Pycnostacliys, Hook. 661 

 Pycnostelma, Bunge. 601 

 Pycnostelma, i)ec. 626 

 Pycnothelia, Achar. 50 

 Pygeum, Gcirtn. 558 

 Pylaielia, Borr/. 22 

 Pylaisaea, Desv. 67 

 Pyramia, Cham. 733 

 Pyramidium, Brid. 67 

 Pyramidula, Brid. 67 

 Pyrarda, DC. 710 

 Pyrenacantha, Hook. 271 

 Pyrenaria, Blum. 397 



Pyrenastrum, Eschiv. 50 



PjTenium, Tocfe. 44 



PjTenothea, i<'>-2e5. 50 



Pyrenotrichum, Mont. 42 



Pyrenula, i^'w'. 50 



Pyrethrum, Giirtn. 712 



Pyi-gosea, Sweet. 346 



Pyrgus, Lowr. 648 



Pyrochroa, Eschiv. 50 



Pyrola, ToMrn. 450 



Pyrolaceae, 446, 450* 



Pyroleae, Lindl. 450 



Pyrolirion, //er6. 158 



Pyronium, Sal. 455 



Pyrophorum, Neck. 560 



Pyrostoma, C. F. W. M. 664 



Pyr stria, Comm. 765 



Pyrostria, Roxb. 764 



Pyrrhanthus, Jticft. 718 



Pyrrhopappus, DC. 715 



PyiThosa, Bkim. 300 



PyiTliosia, Mirb. 79 



Pyrrhotrichia, Wight el Am. 555 



Pyrrocoma, 7/ooft. 710 



Pyrularia, I. C. Rich. 788 



Pyrus, JL«;i«. 560 



Pythagorea, Lour. 743 



Pythagorea, Rafin. 575 



Pythion, J'/ar<.'l29 



889 



Pythium, iVee*. 18 

 Pythonium, Sciotl. 129 

 Pyxidanthera, Michx. 606 

 Pyxidaria, Bori/. 50 

 Pyxidium, Ehrcnb. 67 

 Pyxidium, Schreb. 50 

 Pyxine, i'Vie*. 50 

 Pyxinidse, 50 

 Pyxipoma, jFch^?. 527 



Quadrella, DC. 358 

 Quadria, Rtiiz et Pav. 533 

 Qualea, Aubl. 380 

 Quamoclit, Tourn. 631 

 Quapira, Aubl. 665 

 Quapoya, ^i(?>;. 402 

 ■Quararibea, ^ubL 361 

 Quartinia, Endl. bib _ 

 Quartinia, ^. Rich, bob 

 Quassia, DC. 477 

 Quassiads, 476 

 Quekettia, Lindl. 182 

 Queltia, //«w. 158 

 Quelusia, Fa/ic7. 725 

 Quercinese, Juss. 290 

 Quercus, Linn. 291 

 Queria, Zc#. 497 

 Queriaceae, DC. 496 

 Quernales, 243, 246, 289* 

 Q,uilamum,iJto?ic. 795,796 

 Quillaise, 565 

 Quillaja, Molin. 565 

 Quillesia, Blanc. 444 

 Quinaria, Lour. 458 

 Quinchamalium, Juss. 788 

 Quinetia, C'a*5. 712 

 Quinquefolium, Tourn. 564 

 Quintilia, Endl. 672 

 Quintinia, ^^p/i. DC. 752 

 Quisqualis, Rumph. 718 

 Quivisia, Comm. 464 

 Q,uoia, Ner. 582 

 Quoya, Gawd. 664 

 Quuna, Aubl. 795 



Rabdosia, Hassk. 661 

 Rabenhorstia, i?c^6. 785 

 Racaria, Aubl. 385 

 Rack, Bruce. 665 

 Racka, Gme^. 665 

 Racomitrium, Brid. 67 

 Racopilum, Pafe. 67 

 Racoubea, Atibl. 743 

 Rabelaisia, Planchon. 796 

 Radamsea, Deii^/j. 685 

 Raddia, Bertol. 115 

 Raddisia, Leandr. 585 

 Rademachia, r/t«n/b. 271 

 Radia, ^. Rich. 153 

 Radiana, i?a/. 527 

 Radicula, Dill. 354 • 

 Radiola, Dill.iSb 

 Radiusia, Beichb. bob 

 Radula, Dmnort. 59 

 Radulotypus, Dumort. 59 

 Radulum, Fries. 41 

 Rafflesia, i«. Br. 93 

 Rafflesiacese, 88, 93* 

 Rafflesiese, R. Dr. 93 

 Rafinesquia, iV^((<^ 715 

 Rafnia, Thunb. 553 

 Ragatellus, Presl. 80 

 Ragiopteris, Pre*?. 80 

 Raillarda, Gaud. 713 

 Raineria, iVoi. 67 

 Rajania, Linn. 214 

 Raleighia, Gardn. 572 

 Ralfsia, Der/c. 22 

 Ramalina, Achar. 50 

 Ramatuella, i/. B. K. 718 

 Rameria, Notar. 67 

 Ramondia, D. C iJicft. 672 

 Ramondia, Mirbel. 81 

 Ramtilla, DC. 711 

 Ramularia, Rouss. 19 



