CALIFORNIA ACADEMY OF SCIENCES. 



387 



Plantago Patagonica 227 



Platycerus Agassii 332 



Californicus 331 



synopsis 332 



Platyusa 305 



Sonomie 305 



Pleosphaeria modesta 46 



Pleospora argyrospora 45 



compressa 45 



infectoria 267 



leguminurn 268 



media 268 



pbragmospora 268 



quadriseptata 271 



vulgaris 268 



Pleosporopsis heteromelis 268 



Plowrigbtia morbosa 166 



phyllogona 166 



tuberculif ormis 166 



Pocillum Cesatii 168 



Podosphsera Kunzei 165 



Pogogyne tenuiflora 227 



Polemonium xjectinatum 10 



Polyactis fusca 18 



Polygala Californica 132 



cornuta 132 



Polygonum Austinse 212 



Douglasii 125 



var. latifolium 125 



Engelmanni 126 



tenue 125 



var. latifolium 125 



var. microspermum 126 



Polyommatus heteronea 64 



xantboides 64 



Polypbylla marginata 336 



Poly plocium Calif ornicum 159 



inquinans 159 



Polypodium Californicum 228 



carnosum 151 



falcatum 151 



Scouleri 151, 228 



Polypogon Monspeliensis 228 



Polyporus leucospongia 20 



Polysaccum crassipes 257 



Polyscytalum sericeum 263 



Pons-Brooks comet, observations 349 



Pons-1812 comet 54 



Pontomalota 296 



Californica 298 



nigriceps 299 



opaca 297 



Poronia punctata 26*> 



Potentilla Clarkiana 136 



Grayi 136 



Priceite 57 



Protinus salebrosus 323 



Prunus emarginata 136 



Pseudobazis eglanterina 65 



Psoralea bracteata 135 



f ruticosa 135 



Pterosporopsis Sonoraensis 141 



Pterostegia drymarioides 227 



fruticosa 212 



galioides 213 



Pterostephanus runcinatus 141 



Ptilium f ungicola 327 



Hornianum 327 



Puccinia allii 262 



anacboreta 34 



asari 162 



circseae 162 



congregata 26 



digitata 27 



evadens 34 



gentians 262 



gilise 34 



melanconioides 27 



nodosa 27 



oxyriiE 262 



porpbyrogenita 162 



solani 162 



Bympboricarpi 35 



valantiae 262 



variolans 35 



veratri 162 



Purshia glandulosa 1 53 



Pyrenopbora relicina 166 



tricbostoma 267 



Pyrite 365, 370 



Quercus acroglandis 146 



agrifolia 146 



cbrysolepis 146 



var. Palmeri 147 



Douglasii 146 



Dunnii 146 



f ul vescens 146 



Morehus 146 



Palmeri 147 



Eansomi 146 



tomentella 218, 227 



vaccinifolia 146 



Rancberie Prairie 230 



Raduluni orbiculare 256 



Ramularia urticse 165 



Rauapalus Eisenii 145 



Ranunculus Eisenii 130 



hebecarpus 220 



