888 



Porphyra, Ag. 10, 19 

 Porphjra' Loiir. 664 

 Porphyrantha, F, 498 

 porphyranthus, Don. 695 

 porphyrese, 10 

 porphyrion, Tausch. 568 

 porplijTOComa, Hooker. 679 

 porrum, Tourn. 205 

 portalesia, Meyen. 714 

 portenschlagia, Tratt. 588 

 portesia, Cav. 464 

 portlandia, P. Br. 765 

 portula, X>iW. 575 

 portulaca, Tourn. 501 

 portulacaceffi, 495, 500* 

 portulacaria, Jacq. 501 

 portvilaceas, Juss. 500 

 posanthus, Rafin. 765 

 posidonia, ^on. 145 

 posidonieae, Kimth. 145 

 posoqueria, .4(/6^ 765 

 posoria, Rafin. 765 

 potalia, ^ak. 556, 604 

 potaliaceae. Brown. 602 

 potalieas, Martius. 602 

 potameae, Juss. 143 

 potameia, Thouars. 533 

 potamochloa, Griff. 115 

 potamogeton, Linn. 210 

 potamogetoneae, Rchb. 210 

 potamophila, ii. Br. 115 

 potamophila, Schrank. 509 

 potamophilae, i2ic/(. 143 

 Potamopitys, B«:c5. 481 

 Potareus, Rafin. 13 

 Potentilla, Linti. 564 

 potentillidse, 564 

 poteranthera, Bong. 733 

 Poterium, ii/ui. 562 

 Pothomorphe, Miq. 518 

 Pothos, Linn. 194 

 Potima, Ptfrs. 764 

 Pottia, Ehrh. 67 

 Pottsia, Hooker. 601 

 Pouchetia, ^. iiicA. 765 

 Poupartia, Comni. 467 

 Pouretia, Piu^ e< P. 148 

 Pourouma, 4m6?. 271 

 Pourretia, W. 361 

 Pouteria, ^mZjJ, 591 

 Pouzolzia, Oaud. 262 

 Pozoa, Laga,so. 778 

 Prangos, XindL 799 

 Prasanthea, £>€. 672 

 Prasiese, 662 

 Prasiola, Memgh. 10, 19 

 Prasium, Linn. 662 

 Prasophyllum, it. £?•. 183 

 Pratia, GaM. 693 

 Praxelis, Cass. 709 

 Preauxia, C. ^. SchuCtz. 712 

 Precise, X. xxxiv 

 Preissia, Nees. 58 

 Premna, iyinji. 664 

 Prenanthes, Gartn. 715 

 Preonanthes, -EA>-7(. 428 

 Prepusa, Mart, et Zv.cc. 614 

 Prescottia. Lindl. 182 

 Preslea, Mart. 653 

 Preslia, Opif^r. 661 

 Prestonia, R. Br. 601 

 Pretrea, Gay.. 670 

 Prevostea, CAois. 631 

 Priestleya, Meyen. 18 

 Priestleya, Z)C. 553 

 Prieurea, DC. 725 

 Primitive Vegetation, Mart, xlv 

 Primula, Linn. 645 . 

 Primula, Lour. 570 

 Primulaceae, 637, 641- 

 Primulidae, 645 

 Prim worts, 644 

 Prinopsis, Nutt. 710 

 Prinos, Linn. 598 

 Prinsepia, Royle. 543 



INDEX OF CLASSES, &c. 



Printzia, Cass. 714 

 Prionachne, Nees. 115 

 Priouanthes, Schrank. 714 

 Prionitis, Delahr. 778 

 Prionium, j^. J/e?/. 192 

 Prionodon, K. MuU. 67 

 Prionopteris, TTaif. 80 

 Prionotes, R. Br. 449 

 Prionotophyllum, Less. 714 

 Priotropis, FFi^Tit. et Am. 554 

 Prismatocarpese, 691 

 Prismatocarpus, Herit. 691 

 Pristocarpha, £. Mey. 712 

 Pritzelia, TFaljje/-*. 778 

 Priva, Adans. 664 

 Proboscidea, iiicft. 670, 733 

 Prockeae, 328 

 Prockia, R. Br. 328 

 Procrassula, Gris. 346 

 Procris, Comm. 262 

 Proiphys, Herb. 158 

 Prolifera, StocM-. 25 

 Prolongoa, Boiss. 712 

 Promensea, Z,iMl. 182 

 Pronacron, Cass. 711 

 Pronaya, Hilg. 441 

 Propolis, Corda. 43 

 Prosaptia, P/-esf. 80 

 Prosartes, Z>on. 199 

 Proselia, Don. 714 

 Proserpinaca, Linn. 723 

 Prosopidoclineae, Klotssch. 281 

 Prosopis, i.i/i?K 556 

 Prostanthera, Labill. 661 

 Prostantherese, 661 

 Prostea, Caiiib. 385 

 Prosthemium, Kunze. 42 

 Prosthesia, Blum. 339 

 Protea, iinn. 533 

 Proteacese, 529, 532= 

 Proteads, 532 

 Proteidse, 533 

 Proteinia, Ser. 498 

 Proteopsis, Mart. 709 

 Protium, Burm. 460 

 Protococcidce, 18 

 Protococcus, Ag. 9, 18 

 Protoderma, Kutz. 10 

 Protomyces, linger. 44 

 Protonema, ^g'. 10 

 Protonemae, 10 

 Protophj-tae, Perl, xlix 

 Protosphaeria, Tui-p. 18 

 Proustia, Lagasc. 714, 778 

 Prunella, Linn. 661 

 Prunophora, Neck. 558 

 Pninus, Linn. 558 

 Psacalium, Z>C'. 713 

 Psalliota, Fries. 41 

 Psamma, Pa/w. 115 

 Psammochloa, Endl. 116 

 Psammophila, Fenzl. 498 

 Psammotropha, i'cfc;. if Zcyh . 498 

 Psanacetum, DC. 712 

 PsathjTa, Comm. 764 

 Psathyra, Fries. 41 

 PsathjTella, Pr. 41 

 Psaturochfeta, DC 711 

 Pselium, Z,oi//-. 3uy 

 Psephellus, Cass. 714 

 Pseudachne, Endl. 115 

 Pseudais, Decaisne. 579 

 Pseudaleia, Thouars. 444 

 Pseudaleioides, T/i. 444 

 Pseudantheae, Pnd^. 274 

 Pseudanthus, Sieh. 282 ! 



Pseudarthria, IF. et A. 555 

 Pseudelephantopus, ito/i?-. 709 

 Pseuderemia, Benth. 455 

 Pseudiosma, Adr. Juss. 473 

 Pseuditea, Hassk. 752 

 Pseudocapsicum, JroncA. 622 

 Pseudocistus, Dunal. 350 

 Pseudocotyledoneae, 4^. 51, 54 

 Pseudodictamnus, Mdnch.. 662 



Pseudoscordum, Herbert. 205 

 Pseudospermse, i?c»*. xliv 

 Pseudothlaspi, Magnol. 354 

 Pseudotunica, PenzL 498 

 Pseudo-Vanda, Lindl. 181 

 Pseva, Rafin. 450 

 Psiadia, Jacg. 710 

 Psiadieae, 710 

 Psichohormium, Ktz. 10 

 Psidium, Linn. 738 

 Psidopodium, AecJfc. 80 

 Psiguria, Neck. 315 

 Psilachenia, Nutt. 715 

 Psilathera, Z-int. 116 

 Psilobium, Jacq. 765 

 Psilocarpha, A'lttt. 710 

 Psilocarya, Torr. 119 

 Psilocybe, Fries. 41 

 PsilogyTie, Z>C. 664 

 Psilonema, C. A. Mey. 354 

 Psilonia, Fries. 43 

 Psilopilum, Bi-id. 67 

 Psilostachys, Turcz. 2S1 

 Psilostemon, DC. 656 

 Psilostoma, Klotsch. 764 

 Psilostrophe, DC. 715 

 Psilostylis, ^ndrr. 354 

 Psilostylum, DC. 354 

 Psilothamnus, DC. 712 

 Psilotrichum, Blunie. 511 

 Psilotum, Swartz. 70 

 Psiloxvlon, Thouars. 685 

 Psiluriis, Trin. 116 

 Psittacantlius, 3/art. 791 

 Psittacoglossum, X?a.r. 182 

 Psolanum, Neck. 622 

 Psophocai-pus, AecA;. 555 

 Psora, Hoffm. 50 

 Psoralea, Linn. 554 

 Psoraliete, 554 

 Psorophytum, Spach. 406 

 Psorospermum, Spach. 406 

 Psychanthus, P«f. 378 

 Psychechilus, ^t(/ii. 183 

 Psychidae, 355 

 Psychine, Desfont. 355 

 Psychotria, Linn. 764 

 Psychotridae, 764 

 Psychotrophum, P. Br. 764 

 Psychrophila, DC 428 

 Psydrax, Gdrtn. 764 

 Psygmatella, ATitfa;. 13 

 Psygmium, PresJ. 79 

 PsyUium, Tourn. 643 

 Psyllocarpus, Mart. 764 

 Psyloxylon, Neraud. bib 

 Psvthirisma, Herb. 161 

 Ptaeroxylon, E. Z. 385 

 Ptarmica, Tourn. 712 

 Ptelea, iinn. 473 

 Ptelidium, Thouars. 588 

 Pteracanthus, JN^ees. 679 

 Pterandra, A.deJ. 390 ■ 

 Pteranthus, Forsk. 499 

 Pterichis, ZindJ. 182 

 Pteridopbyllum, Sieb. 436 

 Pterigospermum, Zargr. 25 

 Pterigj-nandrum, Hedw. 67 

 Pterilema, Reinw. 293 

 Pteris, Linn. 80 

 Pterisanthes, Blum. 440 

 Pterium, Z>esu. 116 

 Pterixia, Nutt. 779 

 Pternandra, Jack. 733 

 Pterobryon, Hornsch. 67 

 Pterocarpus, Linn, bob 

 Pterocarya, iS'Htt. 293 

 Pterocaryon, Spach. 252 

 Pterocaulon, Elliot. 10,-710 

 Pterocelasti-us, Meisn. 588 

 Pterocephalus, Faitt. 700 

 Pteroceras, ^ass. 181 

 Pterochaeta, Steetz. 713 

 Pterochilus, Hook. 881 

 Pterochlamys, PiscA. 513 



