INDEX. 



507 



Oscillatoria 83 



Osmunda 186, 197, 361, 405 



cinnamomea 191, 213 



regalia 191, 213 

 Ostrya 205 



virginioa 212 

 Otozamites 413 

 Ottdia 275 

 Ottokaria 410 

 Oxalis 163 



acetoaella 207, 384 

 Oxycoccus 15, 194, 268 



oxycoccus 191 



palustris 243, 244, 402 



vulgaris 16 

 Oxyria digyna 380 



Pagiophyllum 413 



Palaeostaohys 418 



Paleohepatica 361 



Pandanus 274, 276 



Panicularia 194, 198 



Panicmn 196, 206, 208, 215, 218, 236, 267 



amarum 236 



capillare 67 



elephantipes 275 



hemitomon 197 



pseudopubescena 215 

 Papyrua 276 

 Parkia 276 

 Parkinsonia 71 

 ParmeUa 74, 225, 252, 263, 361 



caperata 210 



conaperaa 210, 214 

 Pamassia 187 



paluatris 241 

 Paronychia 225 

 Parosela 233 



emoryi 233 

 Paspalum 278 

 Pecopteris 409 

 Pedicularia palustria 241 

 Pellaea 364 

 PeUia 191 



epiphylla 191 

 Peltaudra 192, 193, 196 

 Pentatemon 355 

 Persea 363 

 Peraioaria 195 

 Pea-caprae 274, 275, 276 

 Petalonyx thurberi 233 

 Petalostemon 188 

 Peucedanum 252 

 Phaca longifolia 214 

 Phalaris 226, 256, 269 



arundinacea 272 

 Phascum 273 

 Fhiladelphua 366 

 Phillyrea media 274 

 Philonotia 250 

 Philotria minor 197 

 Phlox 188, 189 



caeapitosa 225 

 Phleum 188, 190 



micheUi 273 

 Phormiaum 83, 246 



Phragmitea 17, 92, 137, 167, 188, 191, 193, 

 195, 198, 199, 202, 213, 221, 229, 

 232, 243, 244, 245, 247, 248, 249, 

 250, 252, 256, 257, 262, 264, 265, 

 267, 268, 269, 270, 271, 273, 274, 

 276, 277, 353, 354, 355, 361, 363, 

 364, 379, 380, 381, 384, 385, 386, 

 388, 389, 391, 394 



Phyllodoce 247 



Phyllotheca 409 



Phyaalis 66, 186, 215 



Physcia tribacea 210 



Plyraoeaipua 205, 209, 228 



Pioea 22, 24, 64, 93, 108, 146, 180, 181, 186, 

 193, 194, 207, 210, 225, 228, 264, 

 362, 363, 383, 402, 435 

 alba 181, 207, 402 

 canadensia 24, 201, 209 

 engeknannii 56, 93, 181, 225, 226, 228, 



344, 348 

 mariffina 24, 181, 191, 196, 200, 201, 209, 



210, 263, 264, 379, 381, 383, 384, 

 395, 399 



nigra 185, 186, 191, 203, 207, 402 

 rubra 181 

 aitchensis 181 

 Picridium 273 

 Pinua 18, 19, 22, 93, 108, 180, 181, 208, 210, 



225, 228, 242, 254, 256, 264, 352, 



353, 362, 363, 383, 385, 392, 397, 



405, 406, 413, 415 

 ariatata 225, 345 

 banksiana 181, 187, 204, 205, 206, 209, 



210 

 divaricata 64 

 edulis 344 

 flexilis 65, 93, 225 

 halepenaia 274 

 insulatia 278 

 laricio 395 



monticola 70, 181, 226 

 murrayana 56, 64, 93, 181, 228, 400 

 palustria 237 

 pionderosa 70, 93, 109, 114, 225, 226, 228, 



344 

 pumilio 185 

 resinoaa 205, 206, 211 

 rigida 206 

 serotina 197 

 strobus 181, 187, 189, 196, 205, 206, 208, 



211, 402 



silveatria 14, 17, 93, 117, 146, 257, 262, 

 264, 378, 379, 381, 382, 384, 386, 

 387, 388, 391 



taeda 196 

 Pima 206, 252 



arbutifolia 187 



communis 17 



malus 17 

 Pistaoia lentiacus 274 

 Pistia atratiotes 275 

 Htoxylon 367 

 Placodium 249 

 Plantago 240, 249, 262 



major 238, 246 



maritima 250 



purshii 224 



