560 



INDEX. 



Page. 



Polygonum incanum . ii. 149 

 Idpathifolium . 149 



linifolium 153 



7H(ir>n)/m 152 



mavitimum 152 



mite 150 



orientale 146 



Pcnnsylvanicum, 150 



Persicavia 149 



punclalum 151 



sagittatum 148 



scandtns 147 



tenue 153 



Virginianum - - 151 



POLYMNIA i. 371 



Canadensis 371 



Uvedalia 372 



Polyntus heterophyllus, ii. 124 



PoLvroDiuM ii. 484 



bnlbijerum . 501 



calcareum 485 



connectile 484 



Dryopteris 485 



fragile 501 



hexagonoplerum, 485 



Ilvense 500 



marginale 495 



Phegopteris . . 484 

 Thdypteris... 497 

 Virginianum . 484 



vulgare - 484 



Polypody ii. 484 



Polypogim glomeraius, ii. 537 



racemosus 437 



selosus ... 437 



Polystichum acrostichoides, 



ii.497 



POME^ i. 220 



Pond Dogwood i 313 



Pond weed i. 253 



Pondwecd Tribe i. 249 



PONTEDERIA ii. 312 



angustifolia .. 312 



cordata 312 



mucronata 312 



Paso. 



P0NTEDERIACE^,ii.3i 1 



Poor Roboit's Plantain, i. 354 



Poplar ii. 213 



Poppy Tribe i. 43 



PopuLus ii, 213 



balsamifera 216 



belulafolia 216 



candicans 217 



grandidentata. . 214 



hcterophylia .. 215 



Hudsonica 216 



monilifeia 215 



nigra 216 



tremuloides 214 



trepida . 214 



Porcelia triloba i. 30 



PoUTTJLACA i. 109 



oleiacea 109 



PORTULACACEjE, i. 108 



POTAMOOETON ii. 253 



acuiifolium . 256 



compressum 256 



diversifolium. . 255 



exstipulatum . . 257 



fiuitans 254 



gramineum 257 



heterophyllus. _ 254 



heierophyllum . 255 



hybridus 255 



lucens 255 



marinum 257 



natans 253 



paiiciflorus 257 



pectinatuR 257 



perfoliatus 256 



porcalum 255 



Proteus 254, 255 



pusillus 256 



Robbinsii 256 



rufescens 254 



zosterifolia 258 



POTENTILLA 1.207 



Anserina 210 



argentea 209 



artruta 209 



Pnge. 



Potentilla Canadensis . i. 208 



Comarum 211 



confertiflora . . 209 



floribunda 210 



fruticosa 210 



Norvegica 207 



palusiris 211 



Pennsylvanica, 209 



pumila . .* 208 



sarmentosa 208 



simplex 208 



tridentata 207 



Pathos falidus ii. 243 



Prasinum purpureum, ii. 76 



Prenanthcs i. 415 



alba.. 415, 416 



t.lba, /3. nana . 417 



altissima 416 



cordala 416 



dcUoidea 416 



rubicunda .. 415, 416 



Serpenlaria 415 



suavis 415 



Prickly Ash i. 132 



Prickly Pear i. 245 



Prim ii. 127 



Primrose ii. 7 



Primrose Tribe ii. 7 



Primula ii. 7 



Hornemannia . 8 



Mistassinica 7 



pvsilla 8 



stricta 8 



PRI.MULACE^... ii. 7 



Prince'sfeather ii. 146 



Prince's-pine i. 455 



Prinos ii. 3 



amhiguus 2 



glaber 4 



Gronovii 3 



Icevigatus 4 



verticillatus 3 



Privet ii. 127 



Prosartes ii. 321 



lanuginosa 321 



