584 



BOLETÍN DE LA REAL SOCIEDAD ESPAÑOLA 



Ophrys Bertolonii, 215, 256. 

 Oppelia, 189. 



- pseudo-flexnosa, 189. 



- steraspis, 189. 

 Orbitoides Fortisi, 292. 

 Orchis longibracteata, 244, 255. 

 Orobanche major, 241, 265. 

 Oithisina vaticina, 548. 

 Orthoceras, 74. 



Cscillaria limosa, 176. 



- tenerrima, 175. 

 Oscillatoria tenuis, 281. 

 Ostrea vesicularis, 545. 

 Pachyscelodes ** Ferdinandi, 300. 



- malleata, 301. 

 Padina pavonia, 144. 

 Paeonia peregrina, 228. 

 Panseolus campannlatns, 476. 

 Panicum, 296. 



Panus stypticus, 476. 

 Parabathyscia WoUastoni, 212. 

 Paramoecium Aurelia, 286. 



- caudatum, 286. 

 Paranema Trichoforum, 285. 

 Parkinsonia Parkinsoni, 549. 

 Passerina elliptica var. densiflora, 



243, 255. 



- Pujolica, 242, 265. 



- pubescens, 243, 255. 



* Paxillus lamellirugus, 476. 

 Pectén sequivalvis,547,549,550,551. 



- opercularis, 192, 547. 

 Pediastrum Boryanum, 281. 



- dúplex, 280. 



- Ehrenbergii, 281. 



- granulatus, 175. 



- tetras, 281. 

 Pelomixa palustris, 283. 

 Pennisetum longistylum, 248, 266. 

 Pentremites inflata, 17 2. 



- oblongus, 172. 



- Pailletti, 548. 



- Schultzii, 648. 

 Perisphinctes, 187. 



- Backerie, 646. 



- Basiliae, 188, 197. 



- endichotomus, 187, 188. 



- plicatilis, 649. 



- stephanoides, 188. 

 Perrinia Fonti, 2 ! 5. 



Perriuia inferna, 215. 



- Kiesenwetteri. 216. 

 Perriniella Faurai, 215, 361. 

 Petalomonas irregularis, 284. 

 Phacops latifrons, 54 ', 663. 

 Phalaris brachystachys, 247, 255. 



- Paradosa, 247, 255. 

 Phaneroptera falcata, 569. 

 Phaseolus multiflorus, 202. 

 Pbelipaea arenaria, 240, 266. 

 Philodina roseóla, 287. 



* Pbilonotis rígida, 516. 

 Phloeozeteus ** Bedeli, 299. 



- Mauritanicus, 299. 

 Pholadomya, 548. 



- ambigua, 649, 651. 



- decussata, 545. 

 Pholidoptera Burri, 569. 

 Phragmites communis, 119. 

 Phriotetypus. 269. 



** Phrictidea mecopodinarura, 268. 



- Phrictfeformis, 270. 

 Phylloceras Calypso, 191. 



- mediterraneum, 187, Ht6. 



- picturatus, 191. 



- ptychoicum, 188. 



- semistriatus, 191. 



- semisulcatus, 191. 



- Silpsianus, 197. 



- Tetbys, 191. 



* Physisporus radula, 475. 

 Phyteuma Halleri, 2}7, 255. 

 Pinus uncinata, 246, 256. 

 Pirita, 560. 



Planorbis, 553. 

 Plantago crassifolia, 119. 

 Platycapnos spicatns y grandiflo- 



rus, 229, 266. 

 Polypogon littorale, 119. 



* Polyporus amorphus, 474. 



- fragilis, 474. 



- hirsutus, 474. 



- * incanus. 474. 



- zonatus, 474. 

 Potamogetón Siculus, 245, 265. 



- subflavus, 255. 

 Poteriocrinus, 663. 

 Pradocrinus, 648. 



* Prathyrella caudata, 476. 

 Prenaster, 292. 



