INDEX. 



445 



Sorghastrum, 20 



Sorghum, 20 



Sorrel, 107 



Sorrel, Mountain, 109 



Sourgrass, 220 



Sow-thistle, 411 



Spanish Bayonet, 85 



Spanish Lettuce, 126 



Spanish Needles, 375 



Sparganiace^, I I 



Sparganium, 1 1 



Spartina, 35 



Spatularia, 174 



Specularia, 326 



Speedwell, 312 



Spermatophyta, 7 



SphcEralcea, 230 



Sphcerostigma, 247 



Spiderwort, 75 



Spiderwort Family, 75 



Spike-grass, Marsh, 40 



Spikenard, Wild, 84 



Spike-rush, 59 



Spircca, 189 



Spiranthes, 89 



Spleenwort, 4 



Spondiace^, 225 



Sporobolus, 27, 28, 29 



Spring Beauty, 125 



Spring Beauty, Water, 126 



Spring Lily (Leucocrinum) 



Spruces, 8 



Spurge, 222, 224 



Spurge Family, 222 



Squaw root (Carum) 



Squirrel-grass, 55 



Stachys, 297 



Staff-tree Family, 226 



Stanley a, 167 



Star of Bethlehem (Leucocrinmn) 



Starwort, 127 



Starwort, Water, 225 



Steironema, 263 



Stenophragma, 159 



Stenosiphon, 247 



Stenotus, 345 



Stephanomeria, 403 



Stick-seed, 285 



Stink-grass, 38 



Stipa, 23 



Stitchwort, 127 



St. John's Wort, 231 



St. John's Wort Family, 231 



Stone-crop, 170 



Strawberry, 186 



Strawberry Blite, 116 



Strawberry Tomato, 300 



Streptanthus, 166 



Streptopus, 84 



Siiceda, 120 



Suckleya, 118 



Sugar Corn, 20 



Sullivantia, 173 



Sumac, 226 



Sumac Family, 225 



Sun-flower, 373 



Svida, 249 



Swamp Laurel, 260 



Swamp Potato (Sagittaria) 



Sweet Cicely, 251 



Sweet Clover, 202 



Sweet Coltsfoot, 387 



Sweet Flag, 74 



Swertia, 267 



Switch-grass, 21 



Symphoricarpos, 323 



Syntherisma, 20 



Synthyris, 313 



Syringa, 176 



Talinum, 125 

 Tansy-mustard, 157 

 Tape-grass Family, 15 

 Taraxacum, 409 

 Taraxia, 247 

 Tar-weed, 376 

 Telesonix, 173 

 Tellima, 171 

 Tetradymia, 398 

 Tetragoniace^, 124 

 Tetraneuris, 378 

 Teucrium, 295 

 Thalesia, 320 

 Thalictrum, 147 

 Thamnosma, 221 

 Thaspium, 257 

 Thelypodium, 166 

 Thelesperma, 375 

 Thermopsis, 197 

 Thistle, 398 

 Thistle, Russian, 20 

 Thistle Family, 329 

 Thlaspi, 152 

 Thorough-wort, 335 

 Thorn-apple, 303 

 Thymeliales, 239 

 Tickle-grass, 30 

 Tick-seed, 374 

 Tiger Lily, 83 

 Tillcoa, 1 69 

 Tillceastrum, 169 

 Timothy, 28 

 Tiniaria, 113 

 Tiorin, 30 

 Tissa, 132 

 Tithymalus, 224 

 Tium, 204 

 Toad-flax, 305 

 Toad-flax, Bastard, loi 

 Tobacco, 304 



