174 



INDEX. 



Photinia, 66 

 Phrynium, 40 

 Phyla, 123 

 Phyllantus, 82 

 Phyllocactus, 96 

 Physalis, 120 

 Physostegia, 125 

 Phytolacca, 52 

 Piaropus, 32 

 Pickerel-weed, 32 

 Pie-plant, 49 

 Pieris, 107 

 Pigeon-berry, 52 

 Pignut, 44 

 Pigweed, 50, 51 

 Pinaceae, 23 

 Pine-apple Family, 32 

 Pine Family, 23 

 Pine-tassle, 93 

 Pinguiculaceae, 131 

 Pink Family, 54 

 Pinkneya, 135 

 Piperaceae, 43 

 Pipe-wort Family, 30 

 Piriqueta, 94 

 Pistia, 28 

 Pisum, 70 

 Pitcher-plant, 61 

 Pittosporum, 62 

 Plane-tree, 63 

 Plantaginaceae, 134 

 Plantain, 134 

 Platanaceae, 63 

 Platanthera, 41 

 Platycerium, 21 

 Pleea, 33 

 Pleurisy-root, 116 

 Pluchea, 145 

 Plumbago Family, 109 

 Plum Family, 66 

 Poaceae, 27 

 Podostigma, 116 

 Pogonia, 42 

 Poinciana, 68 

 Poinsettia, 84 

 Poison Hemlock, 105 

 Poison Ivy, 85 

 Poison Oak, 85 

 Poke-weed, 52 

 Polecat-geranium, 123 

 Polemoniaceae, 119 

 Polyanthes, 38 



Polygalaceae, 80 

 Polygonaceae, 48 

 Polygonella, 49 

 Polymnia, 149 

 Polypodiaceae, 20 

 Polypremum, 112 

 Polypteris, 146 

 Polystichum, 21 

 Pomaceae, 65 

 Pomegranate, 100 

 Pomelo, 79 

 Pond-lily, 58 

 Pondweed Family, 26 

 Pontedariaceae, 32 

 Ponthieva, 41 

 Pop-ash, 111 



Popinac (See Opopanax) 67 

 Poplar, 44 

 Poppy Family, 58 

 Populus, 44 

 Portulaca, 54 

 Possum-haw, 86 

 Potamogeton, 26 

 Potato, Irish, 121 

 Potato, Sweet, 118 

 Potato-jessamine, 120 

 Prairie-clover, 72 

 Prairie Rose, 64 

 Prenanthes, 153 

 Prickly Ash, 78, 104 

 Prickly Pear, 96 

 Pride-of-India, 80 

 Primrose Family, 109 

 Primulaceae, 109 

 Privet, 112 

 Proserpinaca, 102 

 Proteaceae, 97 

 Prunus, 66 

 Psidium, 100 

 Psilotum, 22 

 Psoralea, 72 

 Pteridium, 21 

 Pteridophyta, 9, 19 

 Pteris, 20 

 Pterocaulon, 145 

 Pueraria, 74 

 Pumpkin, 139 

 Punica, 100 

 Purslane Family, 53 

 Pusley, 54 

 Pycnothymus, 125 

 P y rrh opapp us , 153 



Pyrus, 65 



Quamasia, 35 

 Quamoclit, 118 

 Queen-cactus, 96 

 Queen-root, 83 

 Queen's delight, 83 

 Quercus, 45 

 Quillwort, 23 



Rabbit-tobacco, 145 

 Radish, 60 

 Rag-gourd, 139 

 Ragweed Family, 140 

 Rainbow-moss, 23 

 Rambler, 64 

 Ranunculaceae, 55 

 Raphanus, 60 

 Raspberries, 64 

 Rattle-box, 70 

 Rattlesnake-fern, 19 

 Red Bay, 98 

 Red Cedar, 25 

 Red Lily, 35 

 Redroot, 88 

 Rein-orchid, 41 

 Reseda, 60 

 Resurrection-fern, 20 

 Resurrection plants, 23, 60 

 Rhamnaceae, 88 

 Rhapidophyllum, 28 

 Rheum, 49 

 Rhexia, 98 

 Rhinanthaceae, 127 

 Rhizophora, 100 

 Rhubarb, 49 

 Rhus, 85 

 Rhynchosia, 74 

 Rhyncospermum, 114 

 Rice-paper plant, 104 

 Richardia, 29 

 Richardsonia, 136 

 Ricinus, 83 

 Rivina, 52 

 Robinia, 71 

 Rochea, 61 

 Rock-rose Family, 94 

 Roripa, 59 

 Rosaceae, 63 

 Rosa-de-Montana, 49 

 Rose-mallow, 91 

 Rose-moss, 54 



