Jones: Flora of Illinois 



393 



Plantain 206, 207 



Plamtain Lily 282 



Platan ACEAE 143 



Platanus 143 



Pluchea 255 



Plum 124 



Poa 332 



annua 333 



autumnalis 333 



chapmaniana 333 



compressa 332 



languida 332 



l^aludigena 332 



palustris 332 



pratensis 332 



sylv-estris 333 



trivialis 333 



wolfii 333 



PODOPHYLLACEAE 59 



Podophyllum 59 



Pogonia 296 



Poinsettia 105 



Poison-hemlock 1 74 



Poison-ivy 107 



Pokeweed 92 



Polanisia 67 



POLEMONIACEAE 188 



Polemonium 189 



Polygala 101 



POLYGALACEAE 101 



POLYGONACEAE 93 



Polygonatum 283 



Polygonella 97 



Polygonum 94 



achoreum 95 



amphibium 95 



arifolium 96 



aviculare 94 



bu.xiforrne 94 



caespitosum 96 



careyi 95 



coccineum 95 



convolvulus 97 



cristatum 97 



cuspidatum 97 



dutnetorum 97 



emersum 95 



erectum 95 



exsertum 95 



fluitans 95 



hydropiper 95 



hydropiperoides 96 



incarnatum 96 



lapathifolium 96 



longisetum 9B 



longistyluni 96 



tuuhlenbergii 95 



nutans 95 



neglectum 94 



opelousanum 96 



orientale 96 



pcnsylvanicum 96 



persicaria 96 



punctatum 95 



raniosissimum 95 



sachalinense 97 



sagittatum 96 



scandens 97 



setaceum 96 



sieboldii 97 



tenue 95 



tornentosum 96 



virginianum 97 



zuccarinii 97 



Polymnia 256 



Poi.YPODIACEAE 43 



Polypodium 46 



Polypody 46 



Poly taenia 175 



Pond-lily 58 



Pond weed 276 



Pontederia 290 



POXTEDSRIACEAE 290 



Poplar 152 



Poppy 65 



Poppy Family 64 



Populus 152 



Pcrtulaca 87 



PORTULACACEAE 86 



POTAMOGETON ACEAE 276 



Potamogeton 276 



americanus 278 



amplifolius 277 



compressus 276 



crispus 277 



diversifolius 278 



epihydrus 278 



foliosus 276 



friesii 276 



gramineus 278 



hybridus 278 



illinoensis 278 



mucronatus 276 



natans 278 



nodosus 278 



panormitanus 277 



pectinatus 277 



praelongus 277 



pulcher 277 



pusillus 277 



richardsonii 277 



robbinsii 277 



strictifolius 277 



vaseyi 278 



zosteriformis 276 



Potentilla 113 



anserina 1 14 



argentea 1 14 



arguta 1 14 



canadensis 1 15 



fruticosa 1 13 



intermedia 1 15 



