SARRACENIA 
1 purpurea 
2 do, Far* 
SAURURUS 
ceriums 
SAX1FRAGA 
1 nivalis (vernalis) 
2 pcnnsylvanica 
3 virginica Mich. 
3 CHEUCHZERIA 
palustris 
SCHCENUS 
1 alb us 
2 ciliaris 
3 glomeratus 
4 fuscus 
5 setaceus 
6 sparsus 
SCIRPUS 
1 c.apitatus 
2 lacustris 
3 macrostachius Mich . 
4 sylvaticus 
5 triqueter Mich. 
americanus. Pers. 
SCUTELLARIA 
1 galericulata 
2 hyssopifolia 
3 integrifolia 
4 lateriflora 
5 ovalifolia Pers. > 
eliptica 3 
6 parviflora 
SELINUM 
canadense 
SENECIO 
1 aureus 
2 balsamitae 
3 canadensis 
4 hieracifolius 
5 obovatus 
SILENE 
pennsylvanica Mich. 
SINAPIS 
nigra 
SIDE SADDLE FLOWER 
1 purple 
2 --- 
LIZARD’S TAIL 
nodding 
SAXIFRAGE 
1 early 
2 common American 
3 Virginian 
SCHEUCHZERIA 
marsh 
DOG RUSH 
1 white 
2 fringed 
3 round headed 
4 brown 
5 bristly 
6 spreading 
CLUB RUSH 
1 headed 
2 bulrush 
3 large spiked 
4 wood 
5 three sided 
SCULL CAP 
1 common 
2 hyssop leaved 
3 entire leaved 
4 lateral flowered 
5 oval leaved 
6 small flowered 
MILK PARSLEY 
Canadian 
GROUNDSEL 
1 golden, heart leaved 
2 baisamita like 
3 Canadian 
4 hawk weed leaved 
5 obovate leaved 
CATCH FLY 
Pennsylvanian 
MUSTARD 
black 
