INDEX. 



Pentstcmon Icevigatus, var. digi- 

 talis, 420, 422. 



Pepper-grass, Wild, 174. 



Peppermint, 392. 



Perilla frutescens, 390, 560. 



Persicaria, Pennsylvania, 106. 



Phaseolus polystachyus, 226. 



Phillip's Beach, Marblehead, 

 Mass., 120. 



Phlox divaricata, 374. 



Phlox, Downy, 374. 



Phlox Family, 374. 



Phlox paniculata, 374. 



Phlox pilosa, 374. 



Phlox subulala, 374. 



Phlox, Wild Blue, 374. 



PHRYMACE^E, 386. 



Phryma leptostachya, 386. 



Phy salts heterophylla, 412. 



Physalis pubescens, 414. 



Physalis virginiana, 414. 



Physostegia virginiana, 406, 561. 



Physostegia virginiana, var. den- 

 ticulata, 406. 



Pickerel Weed, 22. 



Pickerel Weed Family, 22. 



Pigweed, no. 



Pimpernel, 350. 



Pimpernel, False, 422. 



Pine-sap, 326. 



Pine-weed, 272. 



Pink, 354. 



Pink, Deptford, 116. 



Pink Family, 116. 



Pink, Ground, 374. 



Pink, Large Marsh, 356. 



Pink, Maiden, 116. 



Pink, Rose, 354. 



Pink, Sea, 354. 



Pink, Wild, 118. 



Pinweed, 274. 



Pinxter Flower, 336. 



Pipsissewa, 320. 



Pitcher Plant, 176. 



Pitcher Plant Family, 176. 



PLANTAGINACE^:, 438. 



Plantago lanceolata, 438. 



Plantago major, 438. 



Plantago Rugelii, 438. 



Plantain, Common, 438. 



Plantain, English, 438. 



Plantain Family, 438. 



Plantain, Robin's, 500. 



Pleurisy Root, 366. 



PLUMBAGINACE/E, 350. 



Plumbago, 350. 



Plymouth, N. H., 158, 448. 



Podophyllum, 152. 



Podophyllum peltatum, 154. 



Pogonia, Nodding, 80. 



Pogonia a finis, 546. 



Pogonia divaricata, 546. 



Pogonia ophioglossoides, 78, 80. 



Pogonia trianthophora, 80. 



Pogonia verticillata, 82. 



Poison Ivy, 252. 



POLEMONIACE^E, 374. 



Polemonium reptans, 376. 

 Polemonium Van-Bruntice, 376. 

 Polygala brevifolia, 244. 



POLYGALACE^E, 240. 



Polygala cruciata, 244. 

 Polygala marina, 242. 

 Polygala paucifolia, 240. 

 Polygala polygama, 242. 

 Polygala sanguinea, 242. 

 Polygala Senega, 242. 

 Polygala verticillata, 244. 

 Polygala verticillata, var. am- 

 bigua, 244. 



POLYGONACE^E, 102. 



Polygonatum bijlorum, 36. 

 Polygonatum commutatum, 36. 

 Polygonum, 104. 

 Polygonum arifolium 108. 

 Polygonum aviculare, 106. 

 Polygonum erectum, 106. 

 Polygonum hydropiperoides, 106. 

 Polygonum pennsylvanicum, 106. 

 Polygonum Persicaria, 106. 

 Polygonum sagiltatum, 108. 

 Polygonum scandens, 108. 

 Polygonum virginianum, 108. 

 Pond-Lily, Small Yellow, 128. 

 Pond-Lily, Yellow, 126. 



PONTEDERIACE/E, 22. 



Pontederia cor data, 22. 

 Poor Man's Weather-glass, 350. 

 Poppy, Celandine, 156. 

 Poppy Family, 156. 

 Poppy-mallow, Purple, 264. 

 Poppy, Prickly, 158. 



PORTULACACEjE, 114. 



Portulaca oleracea, 114. 



Potentilla Anserina, 202, 557. 



Potentilla argentea, 198, 557. 



Potentilla canadensis, 202. 



Potentilla canadensis, var. sim- 

 plex, 202. 



Potentilla fruticosa, 200. 



Potentilla monspeliensis, var. 

 norvegica, 198. 



Potentilla palustris, 200. 



Potentilla recta, 198, 557. 



Potentilla Robbinsiana, 200. 



Potentilla tridentata, 200. 



Pownal, Vt., 208. 



Prenanthes alba, 528, 530. 



Prenanthes altissima, 530. 



Prenanthes BoQtii, 530. 



Prenanthes racemosa, 528. 



Prenanthes serpentaria, 530. 



Prenanthes trifoliolata, var. nana, 

 530. 



Primrose, Dwarf Canadian, 342. 



Primrose Family, 340. 



PRIMULACE.E, 340. 



Primula farinosa, 342. 



Primula mistassinica, 342. 



Prince's Pine, 320. 



Profile House, Franconia Notch, 

 N. H., 202. 



582 



