Pitcherplant, Parrot, plate 236, volume 11 
Pitcherplant, Sweet, plate 250, volume 1v 
Plum, Chickasaw, plate 130, volume 1 
Plume Anemone, (flower), plate 163, volume u1 
Plume Anemone, (fruit), plate 164, volume m1 
Podophyllum peltatum Linnaeus, plate 143, volume 11 
Pogonia divaricata (Linnaeus) Robert Brown, 
plate 242, volume rv 
Pogonia ophioglossoides (Linnaeus) Ker, plate 218, 
volume m1 
Pogonia, Rose, plate 218, volume 111 
Pointvetch, Alpine, flower), plate 282, volume rv 
Pointvetch, Alpine, (fruit), plate 283, volume rv 
Polycodium stamineum (Linnaeus) Greene, 
plate 132, volume 1 
Polygala, Fringed, plate 135, volume 11 
Polygala lutea Linnaeus, plate 257, volume 1v 
Polygala, Orange, plate 257, volume 1v 
Polygala paucifolia Willdenow, plate 135, 
volume 11 
Pontederia cordata Linnaeus, plate 29, volume 1 
Poppy, Mexican, plate 393, volume v 
Porteranthus trifoliatus (Linnaeus) Britton, 
plate 252, volume iv 
Potentilla fruticosa Linnaeus, plate 77, volume 1 
Potentilla glaucophylla Lehmann, plate 296, 
volume tv 
Potentilla uniflora Ledebour, plate 182, volume 111 
Prairie Aster, plate 118, volume 1 
Prairieclover, Purple, plate 320, volume iv 
Prairie Pentstemon, plate 50, volume 1 
Prairie-smoke, plate 53, volume 1 
Prairie Thistle, plate 309, volume rv 
Prickly Currant, lower), plate 66, volume 1 
Prickly Currant, fruit), plate 67, volume 1 
Pricklypear, Missouri, plate 35, volume 1 
Primrose, Alberta, plate 274, volume 1v 
Primrose, Evening, plate 388, volume v 
Primula maccalliana Wiegand, platez74, volume tv 
Prunus angustifolia Marshall, plate 130, volume 11 
Pseudotsuga mucronata (Rafinesque) Sudworth, 
plate 270, volume 1v 
Ptarmiganberry, plate 355, volume v 
Pulsatilla ludoviciana (Nuttall) Heller, (flower), 
plate 95, volume 1 
Pulsatilla ludoviciana (Nuttall) Heller, (fruit,) 
plate 96, volume 1 
Pulsatilla occidentalis (Watson) Freyn, (flower), 
plate 163, volume m1 
Pulsatilla occidentalis (Watson) Freyn, (fruit), 
plate 164, volume m1 
Purple Butterwort, plate 235, volume 11 
Purple Mountain Violet, plate 181, volume m1 
Purple Pentstemon, plate 346, volume v 
Purple Prairieclover, plate 320, volume 1v 
Purple Saxifrage, plate 42, volume 1 
Pussy-ears, plate 2, volume 1 
Pussytoes, Buff, plate 171, volume m1 
Pussytoes, Gray, plate 104, volume 1 
Pussytoes, Pink, plate 286, volume 1v 
Pussy Willow, plate 122, volume 11 
Pygmy Androsace, plate 185, volume m1 
Pyrola chlorantha Swartz, plate 113, volume 11 
Pyrola, Green, plate 113, volume 1 
Pyrola minor Linnaeus, plate 172, volume 11 
Pyrola secunda Linnaeus, plate 285, volume 1v 
Pyrola, Sidebells, plate 285, volume rv 
Pyrola, Small, plate 172, volume 11 
Pyxidanthera barbulata Michaux, plate 124, 
volume 1 
Pyxie, plate 124, volume 1 
Quakerladies, plate 59, volumer 
Quamasia quamash (Pursh) Coville, plate 358, 
volume v 
Queencup, flower), plate 203, volume 11 
Queencup, (fruit), plate 204, volume m1 
Quill-leaf Tillandsia, plate 399, volume v 
Rapes: plate 44, volume 1 
Ragged Fringe-orchid, plate 215, volume m1 
Ramshead Ladyslipper, plate 216, volume m1 
Ranunculus suksdorfit Gray, plate 114, volume 11 
Raspberry, Whiteflowering, plate 341, volume v 
Rattlesnakeplantain, Western, plate350, volume v 
Rayless Groundsel, plate 93, volume 11 
Red Buckeye, plate 47, volume 1 
Redbud, plate 26, volume 1 
Red Chokeberry, (lower), plate 31, volume 1 
Red Chokeberry, (fruit), plate 31a, volume 1 
