VASCULAR PLANTS OF OHIO 



245 



Pellaea, 18 

 ralteudra, 125 

 i'enthorum, 1185 

 Pentstemon, 1522 

 Peramium, 593 

 Perilla, 1661 

 Persicaria, 983 

 Perularia, 569 

 Petalostemon, 1128 

 Petunia, 1497 

 Phaea, 1133 

 Phacelia, 1149 

 Phaethusa, 1857 

 Phalaris, 415 

 Phaseolus, 1178 

 Ph'^gopteris, 13 

 Philadelphus, 1324 

 Philotria, 113 

 Phleum, 399 

 Phlox, 1416 

 Plioradendron, 1370 

 Phragmites, 349 

 Phryma, 1690 

 Physalis, 1503 

 Physalodes, 1502 

 Phyllanthus, 790 

 Phytolacca, 936 

 rilea, 1259 

 Pimpinella, 1735 

 Piiuis, 68 

 Plantago, 1691 

 Platanus, 1244 

 Pleuropterus, 976 

 Poa, 322 



Podophyllum, 654 

 Podostenion, 1186 

 Pogonia, 581 

 Poiusettia, 798 

 Polanisia, 754 

 Polemoiiiuni, 1425 

 Polycodium, ]405 

 Polygala, 783 

 Polygonatum, 512 

 Polygonum, 994 

 Pnlymnia, 1876 

 Polypodiuiu, 11 

 Polystif'liuin, 39 

 T'oiitpdoria, 528 



Populus, 1297 

 Porteranthus, 1031 

 Povtulaca, 931 

 Potamogeton, 86 

 Poteutilla, 1007 

 Poterium, 1052 

 Piosperpiuaea, 1357 

 Prunella, 1666 

 Prunus, 1084 

 Psoralea, 1124 

 Ptelea, 781 

 Pteridium, 17 

 Pyrola, 1385 

 Pyrus, 1054 



Quamasia, 487 

 Quamoelit, 1430 

 Querc'us, 1264 



Radicula, 694 

 Eaimannia, 1344 

 Ranunculus, 607 

 Raphanus, 751 

 Ratibida, 1837 

 Reseda, 756 

 Rhamnus, 1203 

 Rhexia, 1200 

 Rhododendron, 1397 

 Rhus, 1235 

 Ribes, 1326 

 Ricinus, 797 

 Ridan, 1858 

 Robertiella, 763 

 Robinia, 1130 

 Rosa, 1040 

 Rotala, 1195 

 Rubus, 1021 

 Rudbeckia, 1832 

 Ruellia, 1586 

 Rumex, 967 

 Rynehospora, 173 



Sabbatia, 1463 

 Sagina, 887 

 Sagittaria, 78 

 Salix, 1304 

 Salomon ia. 512 

 Salsola, 966 



