1849.] 



Index. 



45 



Page. 



Sambuceae 17 



Santalaceae 27 



Sandal Wood Fam 27 



Saururaceae 28 



Saururus 28 



Sagittaria 30 



Salicaceae 29 



Salix 29 



Sarsaparilla Fam. 32 



Sarsaparilla 32 



Scrophulariaceae 23 



Scrophularia 23 



Scrophularia 23 



Scutellaria 25 



Scammony Fam. 26 



Scrophula Weed 31 



Scurvey Grass 32 



Scilla 33 



Sedum 15 



Senecio 20 



Shrubby Althea 9 



Shrubby Trefoil 10 



Shell Flower 24 



Showy Lady's Slipper 31 



Shovel Leaf 34 



Showy Spleen Wort 36 



Sida 9 



Sium 16 



Silphium 19-20 



Silk Weed 26 



Sisyrinchium . 32 



Sloe Leaved Viburnum 17 



Smooth Buckeye 10 



Smooth Winterberry 23 



Smooth Milk Weed 26 



Smooth Zygadene 34 



Smaller Bell Wort 33 



Small Elowered Crowfoot .. 5 



Smooth Corydalis 7 



Smilaceae 32 



Smilax 32 



Snow Berry 16 



Snap Dragon Tribe 23 



Snake Head 24 



Salea 8 



Solidago 19 



Sonchus 21 



Soft Brome Grass 35 



Spreading Violet 8 



Page. 



Spindle Tree 11 



Spiraea 12 



Spindle Tree Fam. 11 



Spigelia 17 



Spotted Pipsissiwa 22 



Spotted Winter Green 22 



Spearmint 25 



Spurge Family 28 



Spotted Spurge 28 



Sparganium 30 



Speckled Willow 29 



Spider's Wort Fam. 35 



Spider's Wort 35 



Spleen Wort 36 



Squaw Root 6 



Squirrel Corn 7 



Squaw Huckleberry 21 



Star Cucumber 15 



Steeple Bush 13 



Stick Wort 13 



Stink W T eed 8 



Staff Vme 11 



Stillatae 18 



Stenanthium 34 



Star Grass 31 



Stemless Lady's Slipper 31 



Stone Crop 15 



Stinking Prairie Bush 10 



Stinking Ash 10 



Striped Dogwood 10 



Striped Maple 10 



Stylophorum 6 



Sullivan tia 15 



Sugar Berry 28 



Swamp Rose Mallow 9 



Swamp Dogwood 10 



Swamp Maple 10 



Swamp Saxfrage 15 



Swamp Wood 18 



Swamp Dock 27 



Sweet White Violet 8 



Sweet Scetend Shrub 14 



Sweet Cicely 16 



Sweet Viburnum 17 



Sweet Root 26 



Sycios 15 



Symphoricarpus 16 



Tall White False Indigo ... 12 





