566 



INDEX. 



Page. 



Solidago aspera i. 363 



asperata 361 



axillaris 358 



bicolor 356 



cassia 359 



Canadensis 365 



ciliaris 362 



cmarescens 364 



conferliflora . . 356 



flexicavlis 358 



gigantea 366 



giganlea 365 



graminifolia . . 366 



grandiflora 359 



hispida 364 



humilis 363 



Icevigata 360 



lanceolata 366 



lanceolata ft... 367 



latifolia 356 



limonifolia 360 



livida 358 



Muhlenbergii . 362 



neglecta 361 



nemoralis 364 



nutans .... 365 



odora 364 



Ohioensis 360 



patula 361 



procera 365 



retrorsa 364 



rigida 359 



rugosa 363 



sempervircns . . 360 



serotina 365 



serotina 366 



squarrosa 356 



stricta 366 



tenuifolia 366 



ulmifolia 363 



Virga-aurea 359 



Solomon' s-seal ii. 277 



Sonchus i. 420 



acuminatus 419 



acuminatus 420 



Page. 



Sonchus alpinus i. 420 



arvensis 421 



asper 421 



Canadensis . _ 420 

 Carolinianus . 421 



ciliatus 420 



fallax 421 



floridanus... 419, 420 



oleraccus 420 



oleraceus ft. . . 421 



pallidus 420 



spicatus . . 420 



spinosus 421 



spinulosus 421 



Sophora alba i. 188 



australis 188 



Sorbus Americana i. 224 



aucuparia 224 



Sorrel ii. 156 



Sour-gum ii. 161 



Sowthistle i. 420 



Spanish-needles i. 389 



Sparganium - ii. 248 



Americanum . . 249 

 angustifolium . 249 



erecltim 249 



natans 249 



ramosum 248 



simplex 249 



Spartina ii. 447 



alternifolia 449 



cynosuroides . . 448 



glabra 449 



juncea 448 



Icevigata 449 



polystachya . 448, 449 



pumila 448 



Spearmint ii. 56 



Spearwort i. 11 



Specularia i. 428 



perfoliata 428 



Speedwell ii- 40 



Spergula i. 106 



arvensis 106 



Ca?iadensis 106 



Page. 



Spergula rubra i. 106 



Spergule^e i. 106 



Spergularia arvensis . i. 106 



rubra 106 



Spergulaslrum gramineum, 



i. 97 



lanceolatum .. 98 



Spice-bush ii. 159 



Spiderwort ii 332 



Spiderwort Tribe ii. 332 



Spike-grass ii. 473 



Spike-rush ii. 346 



Spikenard i. 284 



Spindle-tree i. 141 



Spindle-tree Tribe i. 139 



Spiraea i. 198 



Aruncus 199 



opulifolia 198 



salicifolia 198 



stipulacea 201 



stipulata 201 



tomentosa 199 



trifoliata 200 



Spiranthes ii. 282 



aestivalis 284 



cernua 283 



gracilis 282 



plantaginea 284 



torlilis 283 



Spirodela polyrrhiza . ii. 246 



Spleenwort ii. 491 



Sporobolus asper ii. 439 



Spotted Wintergreen. . i. 455 



Spring Beauty i. 109 



Spring Cress i. 56 



Spruce ii. 230 



Spurge ii. 174 



Spurge Tribe ii. 172 



Spurry i. 106 



Squaw Huckleberry- . i. 446 



Squaw-root i. 402 ; ii. 22 



Squirrel-corn i. 46 



St. John's-wort i. 84 



St. Peter' s-wort i. 84 



Stachys ii. 79 



