INDEX 



117 



Perennial Ray Grass 13 Moss 73 

 Periwinkle 73 Persicaria 36 



Common 73 Swamp 70 



Persicaria, Common 36 Pinus 7 



Dock-leaved 35 



Pale 35 



Pink 36 



Swamp 35 

 Phalaris 15 

 Phegopteris 3 

 Phleum 15 

 Phlox 74 



Garden 74 

 Phragmites 15 

 Phryma 81 

 Phrymaceae 81 

 Physalis 78 

 Physostegia 76 

 Phytolacca 37 

 Phytolaccaceae 37 

 Picea 6 

 Pickerel-weed 24 



Family 24 

 Pigeon Berry 37 



Grass 16 

 Pigweed 36, 37 

 Pilea 34 

 Pimbina 83 

 Pimpernel 71 • 



Common 71 



False 79 



Short-stalked False 79 



Pinweed 62 

 Pipes 4 

 Pipewort 23 



Family 23 

 Pipsissewa 69 

 Pitcher-plant 47 



Family 47 

 Pitch Pine 7 

 Plane Tree 49 



Family 49 

 Plant, Corpse 70 



Cup 91 

 Plantaginaceae 81 

 Plantago 81 

 Plantain 81 



Common 81 



Downy Rattlesnake 



English 81 



Family 81 



Large-bracted 81 



Lesser Rattlesnake 



Mud 24 



Poor Robin's 90 



Rattlesnake 28 



Robin's 88 



Water 9 

 Plantain-leaved Ever 

 lasting 85 



Yellow 68 

 Pin Cherry 51 

 Pinaceae 6 

 Pine 7 



Drops 70 



Family 6 



Ground 5 



Norway 7 



Pitch 7 



Prince's 69 



Red 7 



White 7 

 Pineapple-weed 90 

 Pinesap 70 

 Pink 38 



Azalea 70 



Corydalis 44 



Family 38 



Fleabane 88 



Grass 27 



Ground 73 



June 70 



Lady's Slipper 27 



Platanaceae 49 

 Platanus 49 

 Plum 51 



Canada 51 



Moxie 69 



Wild 51 

 Plumed Thistle 88 

 Plumeless Thistle 87 

 Poa 15 

 Pogonia 29 



Rose 29 



Small Whorled 29 



Whorled 29 

 Poison Dogwood 58 



Elder 58 



Hemlock 66 



Ivy 58 



Oak 58 



Parsnip 67 



Sumach 58 

 Poke, Common 37 



Indian 26 



Milkweed 73 



Pokeweed 37 



Family 37 

 Polanisia 47 

 Polemoniaceae 74 

 Polemonium Family 74 

 Polygala 57 



Fringed 57 

 Polygalaceae 57 

 Polygonaceae 35 

 Polygonatum 26 

 Polygonella 35 

 Polygonum 35 

 Polypodiaceae 1 

 Polypodium 3 

 Polypody 3 

 Polystichum 3 

 Pondweed 8 



Common 8 



Family 8 



Large-leaved 8 

 28Pontederia 24 

 Pontederiaceae 24 

 Poor Man's Weather- 

 glass 71 

 28 Robin's Plantain 90 

 Poplar 29 



Balsam 29 



Lombardy 30 



Necklace 30 



Silver-leaved 29 



Trembling 30 



White 29 

 Poppy 43 



Corn 43 



Family 43 

 Populus 29 

 Portulaca 40 

 Portulacaceae 40 

 Potamogeton 8 

 Potentilla 50 

 Poverty Grass 10 

 Prairie Willow 30 

 Prenanthes 90 

 Prickly Ash 56 



Gooseberry 48 



Lettuce 90 



Rose 52 

 Primrose 71 



Common Evening 65 



Evening 65 



Family 71 



Sinuate-leaved Even- 

 ing 65 



Small-flowered Even- 

 ing 65 



