44« 



INDEX TO NAMES OF PLANTS. 



Oncidiums 382 



Onion 16, 38, 54, 77, 117 



Onoclea 393 



" sensibilis 393 



Ophioglossum vulgatum 355 



Ophioglossums 352, 355 



Opuntia Cactus 11, 42 



Opuntieae 387, 388 



Orange 77,85, 106, 112 



Orchidaceae 73, 76, 80, 88, 378 



Orchids 68, 99. 100, 380, 381, 382 



Orobanchaceae 384 



Orpines 388 



Orris-root 381 



Osage Orange 22 



Oscillatorias 279, 280 



Osmunda regalis 27, 194 



Osmundas 354 



Oxalis 249, 253 



Oxalis acetocella . ... 249 



DAINTED-CUP 72 



Palm ii, 13, 119, 381 



Palmella 330 



Palms 7, 380, 381, 394 



Pandorina 222, 257, 288 



" Morum 288 



Pansy Violet 103 



Parmelias 334 



Parnassias , 388 



Parsleys 387 



Parsnip 11, 388 



Passion-flower 254, 255, 256, 388 



Paw paw 142 



Pea. ...8, 13, 38, 62, 73, 76, 81, 82, 84, 85, 113 



120, 388 



Peach 106, in 



Pear 112, 155, 388 



Pecan m, 395 



Pediastrum Boryanum 286 



Pediastrums 285 



Pellia 342 



Peltigera 334 



Penicillium 308, 315 



" glaucum 315 



Peppermint 59, 60 



Pepperworts 351, 355 



Peppers 101, 385 



Peronospora 308, 312 



" viticola ji2 



" alsinearum 312 



Peronosporese 310,311,312, 314 



Persimmon 394 



Petroselinum 268 



Peziza 31$, 332 



" confluens 319 



Phacideae 319 



Phaeophyceae 301 



Phajusgrandifolius 134 



Phalloideae 325 



Phanerogamia 270, 362 



Phascu-n muticum 338 



Phascums . . 345 



Phil de'pheie 388 



Philadelphia 192 



Phlox 74, 76 



Phloxes 386, 388 



Phycomycetes 309, 310, 314 



Phyllocladus 368 



Phylloglossum 359 



Physarum album 274 



Phytophthora infestans 312 



Pickerel-weed 130, 381 



Picra:na excelsa 142 



Pilocarpus pennatifolius 159 



Pilularias 357 



Pimpernel 54 



Pine,.... 80, 81, 87, 90, 116, 117, 121, 198 



Pinapple 116 



Pines 364, 366, 368, 369, 370, 385, 393 



Pinguiculas 40, 388 



Pinks 73, 92, 386 



Pinnulariadactylus 282 



Pinus sylvestris 370, 371, 372, 373 



Piperineae 385 



Pipeworts 380 



Pitcher-leaves 387 



Pitcher-plants 38, 40, 388 



Pittosporums ... 387 



Plane-tree 394 



Plantain 22, 55, 90, 175, 386 



Pleuranthe 342 



Pleurocarpi 345 



Plocamium 305 



Plum in, 388 



Podophyllum 268 



Podostemads 386 



Poison Hemlock 141 



" Rhus 5, 13 



Pokeweeds 386 



Polemoniums 131 



Polycarpicae 387 



Polygala .. 98 



Polygonums.... 384 



Polypodiaceae 352, 354 



Polypodium 353 



Polyporeae 308 



Polypori 308 



Polyporus fomentarius 326 



" officinalis 326 



Poly trichum commune 336 



Pontederia cordata 130 



