132 



Periwinkle, 6. 



Persica, 21. 



Phalaris, 50, 102. 



Phegopteris, 51, 97. 



Philadelphus, 44. 



Phlenm, 51, 102. 



Phlox, 15, 67, 112. 



Phragmites, 90. 102. 



Physalis, 77, 112. 



Physoearpus, 44. 



Physostegia, 78, 113. 



Phytolacca, 65, 114. 



Phytolaccaceae, 114. 



Picea. 18, 98. 



Pickerel-weed, 65. 



Pignut. 28. 



Pigweed, 78, 88. 



Pilea, 86, 115. 



Pimpernel, 42, 65, 



Pin Oak, 27. 



Pinaceai, 28, 98. 



Pine, 27. 



Pineapple Weed, 32. 



Pink, 54. 



Pinesap, 64. 



Piniis, 27, 98. 



Pinweed, 71. 



PiperacejE, 114. 



Pipewort, 66. 



Pipsissewa, 64. 



Pitch Pine, 27. 



Pitcher-plant, 33. 



PlantaginacefE, 114. 



Plantago, 13, 58, 70, 

 114. 



Plantain. 25, 58, 70, 73. 



Plantain-leaved Ever- 

 lasting, 9. 



Platanaceae, 115. 



Platanus, 27. 115. 



Pluchea, 84, 109. 



Phira. 12. 21. 



Pliimbaginaceee, 111. 



Poa. 9, 36. 51. 102. 



Podophyllum. 26. 



Pogonia, 26, 48, 98. 



Poison Dogwood, 57. 

 " Hemlock, 54. 

 " Ivy, 43. 

 " Oak. 43. 



Pokeweed. 65. 



PolemoniacefP, 112. 



Polygala, 44, 71, 105. 



Polygalacea?, 105. 



Polygonacea?, 114. 



Polygonatum, 28, 99. 



Polygonella, 93, 114. 



Polygonum, 66, 79, 87, 

 93. 94. 114. 



Polypodiaceffi, 97. 



Polypodium, 51, 97. 



Polypody, 51. 



Polystichum, 52, 97. 



Pondweed. 48. 49. 



Pontederia, 65, 99. 



Pontederiaceffi, 99. 



Poor Man's Weather- 

 glass, 42. 



Poplar, 7. 



Poppy, 53. 



Popuius, 7, 8. 116. 



Portulaca, 74, 105. 



Portulacaceaj, 105. 



Post Oak, 27. 



Potamogeton, 48, 49, 

 100. 



Potato, 47. 



Potentilla, 9. 23. 32, 

 37. 38, 107. 



Poverty Grass, 93. 



Prenanthes. 84, 111. 



Prickly Ash, 18. 



Prim, 60. 



Primulaceffi, 111, 112. 



Primrose. 33, 58. 



Prince's Feather, 79. 



Prince's Pine, 64. 



Privet, 60. 



Proserpinaca. 68, 107. 



Prunella, 39, 113. 



Prunus, 12. 21. 37, 106. 



Psedera, 68, 105. 



Ptelea, 41. 



Pteris, 51, 97. 



Ptilimnium, 75, 108. 



Puccinellia, 36, 102. 



Purslane, 59. 66, 74. 



Pycnanthemum, 70, 

 113. 



Pyrola, 57, 111. 



Pyrus, 21, 23. 107. 



Quercus, 27, 115. 



Quillwort. 59. 



Quince, 24. 



Quitch Grass, 40. 



Rabbit-foot Clover. 45. 



Radicula. 20. 35. 104. 



Radish, 20. 



Ragged Fringed Or- 

 chis, 73. 



Ragged Robin, 25. 



Ragweed, 65. 



Ragwort, 25. 



Ranunculacejp. 103. 



Ranunculus, 18, 31, 42, 

 60, 103. 



