I I 



INDEX OF LA TIN NAMES. 



Phyllitis, 13 

 Phyllodoce, 702 

 Physalis, Xog, 1080 

 Physalodes, 808 

 Physaria, 457, 1067 

 Physostegia, 788 

 Phytolacca, 381 

 Phytj^Laccaceae, 381 

 Picea, 33 

 Picradenia, 1009 

 Picradeniopsis, 1008 

 Picris, 893 

 l'ieris, 703 

 Pilea 343 

 Pimpinella, 680 

 Pimpinella, 680 



PlNACEAE, 30 

 PlNALES, 30 



Pinguicula, 848 

 Pinus, 31, 1046 



PlPERALES, 307 



Piperia, 1060 

 Planera, 338 



Plantaginaceae, 856 

 Plantaginales, 856 

 Plant ago, 856, 1081 

 Platanaceae, 490 

 Platanus, 490 

 Pleurogyne, 734 

 Pleuropogon, 134 

 Pluchea, 973 

 Plumbaginaceae, 719 

 Pneumaria, 771 

 Poa, 136 



PoDALYRIEAE, 532 



Podophyllum, 433 



PODOSTEMACEAE, 472 



Podostemon, 472 

 Pogonia, 297 

 Pogonia, 297, 298 

 Polanisia, 468 



POLEMONIACEAE, 756 

 POLEMONIALES, 749 



Polemonium, 761 

 Polycodium, 708, 1074 

 Polygala, 582 



POLYGALACEAE, 582 

 PoLYGONACEAE, 350 

 POLYGONALES, 350 



Polygonatum, 273 

 Polygonella, 366 

 Polygonum, 358, 1063 

 Polymnia, 979 



POLYPODIACEAE, 6 



Polypodium, 7 

 Polypogon, 107 

 Polyprcmum, 727 

 Polypteris, 1007 

 Polystichum, 13 

 Polytaenia, 685 



1'OMACEAE, 514 



Pontederia, 242 



1'ONTEDERIACEAE, 242 



Populus, 308 

 Porterantnus, 493 

 Portulaca, 386, 1064 



PORTULACACEAE, 384 



Potamogetoq, 41, 1047 

 Potentilla, 502 

 Potentilla, 499, 502 

 Prenanthts, qo6, 907 

 Primula, 714 

 PftlMULACKAX, 713 

 PRIMULALES, 713 

 Phi ncipks, 228 



Prionopsia, 932 



Prosrrpinaca, 665 

 Proi opis, 5*8 

 Protraceae, 344 

 Protraler, 344 



Prunella, 788 



Prunus, 523 

 Pseudotaenidia, 1073 

 Psilocarya, 172 

 Psilostrophe, 100s 

 Psoralea, 542 



PSORALEAE, 533 



Ptelea, 581 

 Pteridophyta, 1 

 Pteris, 8 

 Pterospora, 695 

 Ptilimnium, 681 

 Ptiloria, 894 

 Puccinellia, 145 

 Pulsatilla, 420 

 Pycnanthemum, 800 

 Pyrola, 693 

 Pyrolaceae, 692 

 Pyrularia, 346 

 Pyrus, 515 

 Pyxidanthera, 712 

 Quamasia, 267 

 Ouamoclit, 751 

 Quercus, 332 

 Ouincula, 812 

 Ranales, 405 

 Ranunculaceae, 411 

 Ranunculus, 423 

 Ranunculus, 429, 430 

 Raphanus, 450 

 Rapistrum, 460 

 Ratibida, 988 

 Razoumofskya, 344 

 Redfieldia, 128 

 Reseda, 469 

 Resedaceae, 469 

 Rhamnaceae, 611 

 Rhamnales, 611 

 Rhamnus, 612 

 Rhexia, 651 

 Rhinanthus, 844 

 Rhododendron, 699 

 Rhodora, 699 

 Rhombolytrum, 129 

 Rhus, 600 

 Rhus, 602 

 Rhynchosia, 570 

 Ribes, 486 

 Ricinus, 589 

 Robinia, 549 

 Roripa, 451 

 Rosa 512, 1066 

 Rosaceae, 490 



ROSALES, 471 



Rotala, 649 

 Rottboellia, 68 

 Roubieva, 371 

 Rubiaceae, 860 



RUBIALES, 860 



Rubus, 493 

 Rudbeckia, 985, 1083 

 Ruellia, 854 

 Rumex, 354 

 Ruppia, 49 



RUTACEAE, 581 



Rynchospora, 183, 1056 

 Sabbatia, 729 

 Sacciolepis, 89 

 Sagina, 399 

 Sagittaria, 56 

 Sagittaria, 55 

 Salicaceae, 307 

 Salicali s. 307 

 Salicornia, 375 

 Salix 310. 1061 

 Salomonia, 273 

 Salsola, 376 

 Salvia, 794 

 Salvima, 20 



S \l \ I M A 1 1 AE, 20 



Salviniales, 19 

 Sambucus, 869 



Samolus, 715 

 Sanguinaria, 439 

 Sanguisorba, 512 

 Sanicula, 672, 1072 

 Santalaceae, 345 

 Santalales, 344 

 Sapindaceae, 609 

 Sapindales, 597 

 Sapindus, 610 

 Saponaria, 393 

 Sapotaceae, 720 

 Sarcobatus, 375 

 Sarothra, 628 

 Sarracenia, 470 

 Sarraceniaceae, 470 

 Sarraceniales, 469 

 Sassafras, 436 

 Satureia, 798 

 Saururaceae, 307 

 Saururus, 307 

 Savastana, 93 

 Saxifraga, 477 

 Saxifragaceae, 476 

 Scabiosa, 881 

 Scandix, 674 

 Schedonnardus, 122 

 Scheuchzeria, 53 

 Scheuchzeriaceae, 52 

 Schizaea, 5 



SCHIZAEACEAE, 5 



Schrankia, 528 

 Schwalbea, 840 

 Schweinitzia, 696 

 Scirpus, 174. 1055 



SCITAMINALES, 288 



Scleranthus, 405 

 Selena, 187, 1056 

 Sclerolepis, 920 

 Scolochloa, 142 

 Scolopcndrium, 13 

 Scrophularia, 822, 1079 



SCROPHULARIACEAE, 8l8 



Scutellaria, 783, 1078 

 Sedum, 473 

 Selaginella, 26 

 Selaginellaceae, 26 

 Selenia, 456 

 Sempervivum, 475 

 Senecio, 1024 

 Senecioneae, 917 

 Sericocarpus, 945 

 Serinia, 891 

 Scsban, 550 

 Sesuvium, 384, 1064 

 Setaria, 89 

 Seymeria, 835 

 Shcplurrdia, 647 

 Sherardia, 868 

 Sibbaldia, 500 

 Sibbaldiopsis, 499 

 Sicyos, 883 

 Sida, 620 

 Sideranthus, 932 

 Sieglingia, 126 

 Sicglingia, 126, 129 

 Sieversia, 508 

 Silene, 388 

 Silphium, 980 

 Silybiim, 1035 

 Simarubaceae, 582 

 Simmondsia, 599 

 Sinapis, 449 

 Sisymbrium, 448 

 Sysymbrium, 447. 463 

 Sisyrinchium, 284 

 Sitanion, 155 

 Sitilias, 901 

 Sium, 680 

 Smii.acf.ae, 275 

 Smiladna, 271 

 Smilax, 275 



