152 



Bulletin 187 



Scutellaria, 241 

 Sedge, 173 

 Sedum, 209 

 Selaginella, 160 

 Selaginellacea-:, 160 

 Self-heal, 240 



Spergula, 200 

 Spergularia, 200 

 SPERMATOPHYTA, 



161 

 Sphenopholis, 172 

 Spice Bush, 204 



Seneca Snakeroot, 221 Spider-wort, 183 



Senecio, 256 

 Senna, 218 

 Sensitive Fern, 157 

 Sericocarpus, 257 

 Service Berry, 210 

 Setaria, 172 

 Shad Bush, 210 

 Sheepberry, 248 

 Sheep Sorrel. 196 

 Shell-bark Hickory, 



191 

 Shepherdia, 228 



Shepherd's Purse, 206 Spruce, 161 

 Sherardia, 247 Spurge, 222 



Shield Fern, 155 Spurred Gentian, 235 



Shin Leaf, 232 Spurrey, 200 



Sibbaldiopsis, 214 Squashberry, 248 



Sickle-pod, 205 Squaw-root, 245 



Sicyos, 248 Squaw-weed, 256 



Side-saddle Flower, 208Squirrel Corn, 205 



Spikenard, 229 

 Spike Rush, 180 

 Spiraea, 217 

 Spiranthes, 189 

 Spirodela, 182 

 Spleenwort, 156 

 Spoon-wood, 232 

 Sporobolus, 172 

 Spotted Wintergreen, 



231 

 Spring Beauty, 200 

 Spring Cress, 206 



Silene, 200 

 Silkweed, 236 

 Silphium, 257 

 Silverweed 213 

 Sinapsis, 205 

 Sisymbrium, 208 

 Sisyrinchium, 186 

 Sium, 231 

 Skullcap, 241 

 Skunk Cabbage, 182 

 Smartweed, 196 

 Smilacina, 185 

 Smilax, 185 

 Snakehead, 242 

 Sneezeweed, 249 

 Snowberry, 247 

 Soapwort, 199 



SOLANACE^, 241 



Solanum, 242 

 Solidago, 257 

 Solomon's Seal, 185 

 Sonchus, 258 

 Sophia, 208 

 Sorbaria, 217 

 Sorbus, 214 

 Sorghastrum, 172 

 Sorrel, 196 

 Sour Gum, 231 

 Southernwood, 250 

 Sow Thistle, 258 

 Sparcaxiace.i:, 162 

 Sparganium, 162 

 Spartina, 172 

 Spathyema, 182 

 Spatter Dock. 201 

 Spear Grass, 172 

 Spearmint, 240 

 Specularia, 249 

 Speedwell, 244 



Stachys, 241 

 Staff Tree, 223 

 Staphylea, 223 

 Staphyleace.?:. 223 

 Star Cucumber, 248 

 Star Flower, 235 

 Star of Bethlehem, 185 

 Star Thistle, 252 

 Starwort, 200 

 Starry Campion, 200 

 Steeple Bush, 217 

 Steironema, 235 

 Stellaria, 200 

 Stenophyllus, 181 

 Stickseed, 238 

 Stick-tight. 252 

 Stickwort, 200 

 Stomoisia, 245 

 Stonecrop, 209 

 Stone-root, 239 

 Storksbill, 221 

 Stramonium, 241 

 Strawberry, 213 

 Strawberry Blite, 197 



Tomato, 242 

 Streptopus, 186 

 Subularia, 208 

 Succory. 253 

 Sugarberry, 193 

 Sumach, 222 

 Summer Savory, 241 

 Sundew, 208 

 Sunflower, 254 

 Sweet Alyssum, 207 

 Sweetbrier, 215 

 Sweet Coltsfoot, 256 

 Sweet Cicely, 230 



Clover, 219 



Fern, 191 



Flag, 182 



Gale, 191 



Scabious, 253 



Vernal Grass, 166 



William, 199 

 Sycamore, 210 

 Symphoricarpus, 247 

 Symphytum, 238 

 Symplocarpus, 182 

 Syndesmon, 202 

 Syntherisma, 167 

 Syringa, 235 

 Tacamahac, 189 

 Tsenidia, 231 

 Tamarack, 161 

 Tanacetum, 258 

 Tansy, 258 

 Taraxacum, 258 

 Tare, 220 

 Taxace^, 161 

 Taxus, 161 

 Teaberry, 232 

 Tear-thumb, 195, 196 

 Teasel, 248 

 Teucrium, 241 

 Thalesia, 245 

 Thalictrum, 203 

 Thimbleberry, 216 

 Thin Grass, 165 

 Thistle, 253 

 Thlaspi, 208 

 Thorn Apple, 211, 241 

 Thoroughwort, 254 

 Three-seeded Mercury, 



222 

 Throatwort, 249 

 Thuja, 162 

 Thyme, 241 

 Thymel^^ace.e, 227 

 Thymus, 241 

 Tiarella, 210 

 Tick Trefoil, 218 

 Tiger Lily, 185 

 Tilia, 225 

 TiLiACE^, 225 

 Timothy, 171 

 Tiniaria, 195. 196 

 Tissa, 200 

 Tithymalopsis, 222 

 Tithymalus, 222 

 Toad-flax, 243 

 Tofieldia, 186 

 Toothwort, 206 

 Touch-me-not, 224 

 Tovara, 196 

 Tower Mustard, 205 

 Toxicodendron, 223 

 Tracaulon, 196 

 Tradescantia, 183 

 Tragopogon, 258 

 Trailing Arbutus, 232 

 Traveler's Joy, 202 

 Treacle Mustard, 207 

 Trembling Poplar, 190 

 Triadenum, 226 

 Triantha, 186 



