481 



Sison 266 



aureus 271, 272 



bulbosum 283 



Canadense 269 



capillaceus 266 



integerrimus 27 1 



marginatus 278 



SlSTHBRE£ - 59 



SlSYMBRICM 59 



arabidoides 54 



dentalum 54 



officinale 59 



Thaliana 60 



SinM 268 



Ca nadense 269 



denliculatum 278 



latifolium 268 



lincare 268 



rigidius 278 



ienuifolium 269 



iricuspidatum, 278 



Sloe 304 



Smyrnium 270 



airopurpureum . . 272 



aureum 271, 273 



barbinode 273 



cordata 270 



integerrimum 271 



irifoliaium 270 



Snap-weed 12 



Sneeze-weed 389 



Snowberry 295 



Soapwort 103 



SOLEA 75 



concolor. 76 



SoLiDAOo.. 356 



aliissima 363 



argula 362 



argula 362 



aspera 363 



asperala 361 



axillaris . .. 358 



bicolor 356 



ciEsia 359 



Canadensiii 365 



[Floka.J 



(Solidago) ciliare 362 



cinarescens 364 



confertiflora 356 



flexicaulis 358 



gig-antea 366 



gigantea 365 



graminifolia 366 



grandijlora 359 



hispida - 364 



humilis 363 



IcBvigata 360 



laDceolata. 366 



lanceolaia (3. 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 



sempervirens 360 



serotina 365 



serotina 366 



squarrosa 356 



stricta 366 



tenuifolia 366 



ulmifolia 363 



Virga-aurea 359 



SoNCHus 420 



ocuminatus 419 



acuminalus 420 



alpinus 420 



arvcnsis 421 



osper 421 



Canadensis 420 



Carolinianus. ... 421 



ciliatus ... 420 



fallax 421 



63* 



Face. 



{Sonchus) Floridanus, 419, 420 



olcraceus 420 



oleraceus ji. 421 



pallidus 420 



spicatus 420 



spiiiosus 421 



spinulosus 421 



Sorbus 224 



Anicricana 224 



aucvparia 224 



Sophora 188 



mtstralis 188 



alba 188 



Sowthistle 420 



Spanish Needles 389 



Spearwort 11 



Specularia 428 



perfoliata 428 



Spergula 106 



arvcnsis 106 



Canadensis 106 



rubra 106 



Spergularia 106 



arvensis.. 106 



rubra.. 106 



Spergulastrum 97 



gramineum 97 



lanceolatum 98 



Spergule^ 106 



Spir^a - 198 



Aruncus 199 



opiilifolia 198 



salicifolia 198 



slipulacea 201 



slipulata 201 



tomentosa 199 



trifoliala 200 



Spikenard 284 



Spindle-tree. 141 



Spindlc-trcc Tribe 139 



Spring Beauty 109 



Spring Cress 56 



Spotted Wintergrcen 455 



Spurrcy 106 



Squuw Huckleberry 446 



