398 



American Midland Naturalist Monograph No. 7 



altissima 245 



arguta 245 



bicolor 243 



buckleyi 243 



caesia 243 



canadensis 245 



drumniondii 245 



flexicaulis 243 



gigantea 244 



gilvocanescens 245 



glaberrima 245 



graminijolia 246 



hirtella 246 



hispida 243 



juncea 245 



lanceolata 246 



latifolia 243 



longipetiolata 246 



media 246 



missouriensis 245 



moritura. 245 



neglect a 244 



nemoralis 246 



ohioensis 246 



patula 244 



per glabra 246 



petiolaris 243 



radula 245 



remota 246 



riddellii 246 



rigida 246 



rjgidiuscula 244 



rugosa 245 



sciaphila 243 



sempervirens 244 



serotina 244 



speciosa 244 



strigosa 244 



tenuifolia 246 



uliginosa 244 



ulmifolia 244 



uniligiilata 244 



Sonchus 272 



Sorbus 121 



Sorghastrum 353 



Sorghum 353 



Sour Dock 9T3 



Southern Buckthorn 178 



Southernwood 265 



Sow Thistle 272 



Soybean 140 



Spanish Needles 262 



Sparganiaceae 300 



Sparganium 300 



Spartina 344 



Spearmint 222 



Specularia 231 



Speedwell 201 



Spergula 84 



Spergularia 84 



Spermococe 225 



Spermolepis 174 



Sphaeralcea 81, 82 



Sphenopholis 337 



Spice-bush 160 



Spider Lily 291 



Spiderwort 289 



Spiderwort Family 289 



Spigelia 186 



Spikenard 170 



Spike Rush 304 



Spiraea 112 



Spiranthes 296 



beckii 296, 297 



cernua 297 



gracilis 297 



grayi 296 



lac era 297 



latifolia 297 



lucida 297 



niontanurti 297 



ovalis 297 



plantaginea 297 



tuberosa 296 



vernalis 297 



Spirodela 299 



Spleenwort 46 



Sporobolus 341 



asper 341 



asperifolius 341 



brevifolius 341 



canovirens 341 



clandestinus 341 



cryptandrus 341 



heterolepis 341 



neglect us 341 



vaginiflorus 341 



Spurge Family 102 



Spurrey 84 



Squirrel-corn 66 



Stachys 219 



ambigua 219 



arenicola 219 



aspera 219 



clingmanii 219 



glabra 219 



hispida 21^ 



homotricha 219 



palustris 219 



tenuifolia 219 



Staff-tree Family 105 



Standing Cypress 189 



Staphylea 106 



Staphyleaceae 106 



Star-flower 179 



Stargrass 291 



Star-of-Bcthlehem 283 



Star Thistle 269 



Steironertia 180 



Stellaria 84 



Stenanthium 280 



