INDEX. 



325 



Page. 



Smilacaceae 124 



Smilacina 123 



Smilax 124 



family 124 



Smith, C.P 14 



Smoke tree 19^ 



Smooth aster 281 



winterberry 199 



Snakeroot, black 156 



bur ". 217 



buttpn 217 



Seneca 193 



Virginia 143 



wh ite • 275 



Sneezeweed , 290 



purple 290 



Snowball 260 



Snowberry 260 



Snow-on-the-mountain 196 



Snowy campion 154 



Solanaceae 247 



Solanum 248 



Solea 206 



Solidago 276,278 



Solomon's-seal 123 



false 123 



Sonchus 265 



Sophronanthe 251 



Sorghastrum 72 



Sorghum "2 



Sorgo 72 



Sorrel, sheep 144 



Soulard crab apple 177 



Soiir cherry. 4 180 



Sow thistle 265 



Spanish needles 289 



oak 140 



Sparganiaceae 62 



Sparganium 62 



Spartlna So 



Spathyema 114 



Spear grass 82 



Spearmint 246 



Species, method of treatment ~ 16 



Specularia 262 



Speedwell 252 



common 252 



corn 252 



germander...'. 252 



ivy-leaf 252 



marsh 252 



purslane 252 



thyme-leaf 252 



Spergula 151 



Spergularia 151 



Sphenopholis 84 



Spice bush 162 



Spider-flower 170 



Spiderwort 116 



family 115 



Spigelia 22S 



Spike rush 95 



Spikenard 215 



Spiny amaranth 149 



cocklebur 267 



Spiny-bur 285 



Page. 



Spiraea 174, 176 



Spiranthes 130, 131 



Spirodela 115 



Spleenwort 55 



dwarf 56 



ebony 56 



maidenhair 56 



mountain 56 



Scott's 55 



silvery 56 



Sporobolus 83 



Spotted pipsissiwa 221 



touch-me-not 201 



Spring beauty 150 



flora 18 



' u-is 126 



Spurge, caper 19" 



cypress 197 



family 194 



flowering 197 



Spurry .' 151 



sand 151 



Squaw-root 255 



Squills 120 



Squirrel corn 163 



Squirreltail grass 91 



Stachys 243 



Stagger-bush 223 



Staghom sumac 198 



Standley, Paul C ? 14 



Staphylea 200 



Staphyleaceae 200 



Star of Bethlehem 122 



chickweed 152 



cucumber - 262 



thistle 293 



Star-grass 125 



water 117 



Starry campion 154 



Starwort 152 



water 197 



Steele, E.S '. 13,15 



Steironema 226 



Stenanthium 120 



Stenophyllus 96 



Stitchwort 152 



Stickseed 237 



Stink grass 86 



Stipa 82 



Stomoisia 25o 



Stoncerop 171 



diti'h 171 



. three-leaved 171 



Strawberry bush 199 



false 175 



Indian 175 



wild 175 



Striped gentian 229 



Strophostyles 190 



Struthiopteris ^i 



Stuntz, S. C 15 



Stylosanthes 185 



Sugar maple 200 



Sumac 198 



black 198 



dwarf 198 



