Part 80

Parnassia Caroliniana, 186

Pastinaca sativa, 216

Pedicularis, Canadensis, 452 lanceolata, 454

Phryma Leptostachya, 490

Phytolacca decandra, 518

PHYTOLACCACEÆ, 518

Podophyllum peltatum, 34

Pogonia ophioglossoides, 544

Polygala, paucifolia, 112 sanguinea, 114

POLYGALACEÆ, 112

POLYGONACEÆ, 520

Polygonatum giganteum, 590

Polygonum, amphibium, 526 Pennsylvanicum, 524 sagittatum, 522

Pontederia cordata, 596

PONTEDERIACEÆ, 596

Potentilla, argentea, 174 arguta, 172 Canadensis, 170 fructicosa, 176

Prenanthes, alba, 308 altissima, 310

PRIMULACEÆ, 408

Pyrola, elliptica, 392 secunda, 394

Pyrus arbutifolia, 44

RANUNCULACEÆ, 1

Ranunculus, acris, 24 Pennsylvanicus, 26 septentrionalis, 22

RHAMNACEÆ, 108

Rhododendron, nudiflorum, 378 viscosum, 380

Ribes floridum, 184

Rosa, blanda, 152 humilis, 50 rubiginosa, 148

ROSACEÆ, 144

RUBIACEÆ, 238