110 



Lackawanna Institute. 



Lobeliaceae 69 



Locust 51 



Lonicera 61 



Lophanthus . . . . 78 

 Loranthaceae .... 83 



Lousewort 76 



Ludwigia 58 



Lupine 50 



Lupinus 50 



Lychnis 45 



Lycium 75 



Lyeopodiaceae . . . 105 

 Lycopodium . . . . 105 



Lycopus 77 



Lysimachia ... 72, 73 

 Luzula 92 



Magnolia 41 



Magnoliaceae .... 41 



Maianthemum ... 90 



Mallow 47 



Malva . . 47 



Malvaceae 47 



Mandrake 41 



Maple 49 



Marsh Bell-flower . 70 

 Marsh-marigold . . 40 



Matrimony-vine . . 75 



Mayflower 71 



Meadow-rue 40 



Meadow-sweet ... 53 



Medeola 91 



Medic 50 



Medicago 50 



Melanpyrum . . . . 76 



Melissa 7S 



Menispermaceae ... 41 



Menispermum ... 41 



Mentha 77 



Menyanthes . . . . 74 



Mexican Tea .... 80 



Milium 99 



Milkweed 73 



Mimulus 76 



Mint 77 



Mistletoe 83 



Mitchella 62 



Mitella 56 



Mitre wort 56 



Mockernut 85 



Monarda 78 



Moneses 72 



Monkey-flower ... 76 



Monotropa . . . . 72 



Moon-seed Vine . . 41 



Moosewood 83 



Morus 84 



Moss-pink 74 



Motherwort 79 



Mountain Ash .... 55 



Mountain Mint . . . 7S 



Mountain Rice ... 99 

 Muhlenbergia . . . . 100 



Mulberry 84 



Mulgedium 69 



Mullein 75 



Mustard 43 



Myosotis 75 



Myrica 85 



Myricaceae 85 



Nabalus 68 



Naiadaceae 93 



Nasturtium 43 



Nemopanthes . . . . 4S 



Nepeta 78 



Nettle 84 



Nightshade .... 58, 75 



Ninebark 53 



Nuphar 41 



Nymphaea 41 



Xymphaeaceae .... 41 



Nyssa 60 



Oak 86 



Oakesia 91 



Oenothera 58 



Old-witch Grass ... 98 



Oleaceae 73 



Onagraceae 57 



Onoclea 105 



Orchidaceae 88 



Orchis 88 



Orobanchaceae . ... 76 



Orontium 93 



Oryzopsis 99 



Osmorrhiza 59 



Osmunda 105 



Ostrya 86 



Oxalis 48 



Ox-eye 66 



Panicum 98 



Papaveraceae . . . . 42 



Parietaria 84 



Parsnip 59 



Partridge-berry ... 62 



Pastinaca 59 



Pedicularis 76 



Pellaea 103 



Pellitory S4 



Pennyroyal 78 



Pennywort 59 



Pepper-grass 13 



Pepperidge 60 



Penthorum 57 



Pentstemon 76 



Peucedanum . . . . 59 



Phegopteris 104 



Phleum 100 



Phlox 74 



Physocarpus .... 53 



Physostegia 79 



Phytolacca 81 



Phytolaccaceae ... 81 



Picea 102 



Pickerel-weed .... 91 



Pignut 85 



Pigweed 80 



Pilea 84 



Pimpinella 59 



Pine 102 



Pine-weed 46 



Pinus 102 



Pink Fleabane ... 65 



Pinweed 44 



Pirus 55 



Pitcher-plant . . . . 41 

 Plantaginaceae ... 79 



Plantago 79 



Plantain 79 



Platanaceae 84 



Platanus 84 



Plum 52 



Poa 101 



Podophyllum .... 41 



Pogonia 88 



Poison Hemlock . . 59 



Poison Ivy 50 



Poison Oak 50 



Pokeberry 81 



Polanisia 43 



Polemoniaceae .... 74 



Polygala 45 



Polygalaceae . . . . 45 

 Polygonaeeae . ... 81 

 Polygonatum .... 90 



Polygonum 81 



Polymnia 66 



Polypodium . . . .103 



Polypody 103 



Pond Lily 41 



Pontederia 91 



Pontederiaceae ... 91 



Poplar 87 



Populus 87 



Portulaca 46 



Portulacaceae . . . . 46 

 Potamogeton .... 94 



Potentilla 54 



Prenanthes 68 



