372 



Page. 



Onopordon, , . 345 



Onosmodium 275 



Oi'Jiiu<;lossack.e, 9 



Ophiglossum, 9 



Ophiorhiza, 258 



Ophrys, . . 123, 124, 125 



Oplotheca, 145 



Dpulaster 181 



Opuntia, 230, 358 



Orciiidace/E, 120 



Orchis 120 



Orchis 121 



Oreocarya, 273 



Origanum, 280 



Orii^autttn, 279 



Ornithogalum, 113 



Ornit/iogaltim 118 



Orobanciiace/E, 298 



Orobanche 299 



Orobanche, 298 



Orontium , loi 



(Jrthocarpus 296 



Ory/.opsis, 35 



Osmorrhiza, 243 



Osmunda, . 15 



Osmuuda, 9. 14 



Ostrya, 130 



OxALlUACE/E, 210 



Oxalis, 210, 358 



Oxybaphus 146, 355 



Oxycoccus, 253 



Oxydendron, 251 



Oxydciiia, 47 



Oxypolis, 239 



Oxyria, 139 



Oxytropis, 201,357 



Pachylophus, 235 



Pacliy podium, 167 



Pacliysandra, 215 



Pachystima, 218 



Pixpalaiithus, 103 



Palafoxia, 338 



Panax, 238 



Pancratium, 118 



Paniciilaria, 53 



Panicum, 30, 352, 353 



Panicum, 33> 44. 35^ 



Papaver, 165 



Papaverace-e, 164 



Pan/a tit/i us, II9 



Parietaria, 136 



Parnassia, 179 



Paronychia, . 152 



Paroscla, 196 



Parsonsia 231 



Parthenium 331 



Parthcnocissus, 221 



I'aspalum 29, 352 



Paspalum 3'> 32, 352 



Page. 



Passiflora 229 



PASSIKLORACE.E 229 



Pastinaca 239 



Paulownia, 291 



Pectis 339 



Pkdai.iace.e, 299 



Pedicularis, 296 



Pcllica 10 



Peltandra, 102 



PetiJiisetum, 32 



Pevtagoiiia, 309 



I'enthorum, 177 



Pentstemon, 290 



Peplis, 225, 231 



Peramium, 124, 354 



Perilla, 277 



Persea, 163 



Petalostemon, 197 



Petasites, 342 



Petunia 289 



Peucedanum, 240, 358 



Peitceda7ium, ..... 239, 244, 358 



Phaca,. 199 



Phaca, 198 



Phacelia, 271 



Phalaris 33 



Phalaris, 46 



Pharnaccum, 147 



Phaseohis 208 



Phegoptcris, 12 



Philadcljihus, 179 



P/iilipc£a 298 



Phippsia 3^ 



Phleum, 38. 353 



Phlomis, 286 



Phlox 269 



Phoradcndron, 136 



Phragmites, 48 



Phryma, 277 



Phyllanthus, 212 



Phyllodoce 249 



Physalis, 2S7 



Physalodes, 287 



Physaria, . 17' 



Pliysocarpa, l8l 



I'hysostegia, 2S4 



Phytolacca 146 



PlIYTOLACCACE.E, I4<» 



Picca, '8 



Picris 347 



I'iens, ....... 250 



Pilca, 135 



l'iuii)iiic]]a, 242 



Pinguicula, 297 



Pinus ... 17 



Pin us, J 8 



Piptathcrum, 35 



Plancra, ... '34 



Pl.ANTACINACE.E 30I 



Plantago 301, 359 



