266 



KEY AXD FLORA 



Senecio, 247 

 Sensitive Brier, 129 

 Sensitive Rose, 129 

 Service Berry, 118 

 Shad Bush, 118 

 Shame Vine, 129 

 Sheep Lice, 204 

 Sheep Sorrel, 70 

 Shellbark, 53 

 Shepherd's Purse, 103 

 Sheriff Pink, 247 

 Shin Leaf, 178 

 Shoe Strings, 136 

 Shooting Star, 188 

 Shrub, 94 

 Sickle Pod, 107 

 Sicyos, 237 



Sidesaddle Flower, 109 

 S levers la, 121 

 Silene, 80 

 Silverweed, 120 

 Sisymbrium, 104 

 Sisj'rinchium, 47 

 Sltlllas, 253 

 Skullcap, 210 

 Skunk Cabbage, 25 

 Smartweed, 71 

 Smilacese, 32 

 Smilacina, 39 

 Smilax, 42 



Snakeroot, Black, 173 

 Snakeroot, Samson's, 



135 

 Snakeroot, Seneca, 145 

 Snapdragon, 218 

 Snappers, 81 

 Snapweed, 154 

 Sneezeweed, 246 

 Snow on the Mountain, 



147 

 Snowball, 234 

 Snowberry, 232 

 Solanacese, 214 

 Solanum, 214 

 Solomon's Seal, 41 

 Sonchus, 251 

 Sophora, 132 

 Sorlms, 116 

 Sorrel, Sheep, 70 

 Spanish Dagger, 39 



Spathyema, 25 

 Spatter-Dock, 82 

 Spearwort, 84 

 Specularia, 238 

 Speedwell, 220 

 Spice Bush, 96 

 Spiderwort, 27 

 Spiderwort Family, 26 

 Spikenard, False, 40 

 Spinach, 73 

 Spinacia, 73 

 Spir?ea, 115 

 Spiranthes, 48 

 Spring Beauty, 77 

 Spruce, 16, 17 

 Spurge, 147, 148 

 Spurge Family, 145 

 Spurge Nettle, 146 

 Squash, 237 

 Squaw Vine, 229 

 Squawroot, 42 

 Squill, 37 

 Squirrel Corn, 99 

 Stachys, 212 

 Staggerbush, 181 

 Stapiiylea, 151 

 Staphyleacese, 151 

 Star Flower, 187 

 Star Grass, 45 

 Star of Bethlehem, 38 

 Steironema, 186 

 Stellaria, 78 

 Stick-Tights, 204 

 Stitchwort, 78 

 Stock, 102 

 Straw Lilies, 34 

 Strawberry, 118, 119 

 Strawberry Bush, 94, 



150 

 Streptopus, 40 

 Sugar Pear, 118 

 Sumac, 148 

 Sumac Family, 148 

 Sundrops, 168 

 Supple Jack, 154 

 Sweet Alyssum, 101 

 Sweet Bay, 92 

 Sweet Cicely, 173 

 Sweet Clover, 135 

 Sweet Fern, 52 



Sweet Flag, 26 

 Sweet Pea, 139 

 Sweet Potato, 198 

 Sweet William, 81 

 Sweetbrier, 124 

 Sweet-Scented Shrub, 94 

 Sycamore, 113 

 Sycamore Family, 113 

 Symphoricarpus, 232 

 Symplocarpus, 25 

 Syndesmon, 86 

 Syringa, 111, 190 



Tamarack, 18 

 Tangleberry, 182 

 Tansy Mustard, 104 

 Taraxacum, 251 

 Tassel Tree, 158 

 Taxodium, 18 

 Tecoma, 222 

 Thalesla, 224 

 Thalictrum, 85 

 Thaspium, 174 

 Thistle, 248, 249, 251 

 Thuja, 18 

 Thyme, 213 

 Thymus, 213 

 Tiarella, 110 

 Tickseed, 245, 246 

 Tilia, 157 

 Tiliacese, 157 

 Tinker Weed, 233 

 Tipsin, 136 

 Toadflax, 218 

 Toadflax, Bastard, 67 

 Tomato, 215 

 Tongue Grass, 102 

 Toothache Tree, 144 

 Tooth wort, 106 

 Toxylon, 65 

 Tradescantia, 27 

 Trailing Arbutus, 182 

 Trefoil, Marsh, 192 

 Trientalis, 187 

 Trifolium, 133 

 Trillium, 41 

 Triosteum, 233 

 Tropseolacese, 142 

 Tropffiolum, 143 

 Tropseolum Family, 142 



