INDEX 



119 



Orchis 28 

 Squaw-weed 91 

 Sundew 47 



Violet 63 



Wintergreen 70 

 Round-lobed Liver- 

 leaf 42 

 Rowan Tree 51 

 Royal Fern 4* 

 Rubiaceae 81 

 Rubus 52 

 Rudbeckia 90 

 Rue, Early Meadow 43 



Family 56 



Meadow 43 



Spleenwort 2 



Tall Meadow 43 

 Rum Cherry 51 

 Rumex 36 

 Running Raspberry 52 



Swamp Blackberry 52 

 Rush 24 



Beak 22 



Bog 24 



Brown Beak 22 



Brownish-fruited 24 



Chair-maker's 22 



Club 22 



Common Scouring 4 



Common Wood 24 



Family 24 



Grass 16 



Hairy Wood 24 



Jointed 24 



Knotted 24 



Scouring 5 



Sharp-fruited 24 



Slender 24 



Spike 21 



Toad 24 



White Beak 22 



Wood 24 

 Russian Thistle 37 

 Rusty Woodsia 3 

 Rutabaga 45 

 Rutaceae 56 

 Rye 16 



Grass 13 



Nodding Wild 12 



Slender Wild 12 



Wild 12 

 Rynchospora 22 

 Sage, Flowering 76 



Wood 78 

 Sagittaria 9 



Sainfoin 54 



St. John's-wort 61 



Common 62 



Family 61 



Great 61 



Marsh 62 



Pale 61 



Small-flowered 62 



Spotted 62 

 Salicaceae 29 

 Salix 30 

 Salsola 37 

 Saltwort 37 

 Sambucus 83 

 Sandalwood Family 

 Sand-bar Willow 30 

 Sandbur 11 

 Sand Cherry 51 



Violet 62 

 Sandwort 38 



Blunt-leaved 38 



Rock 38 



Thyme-leaved 38 

 Sanguinaria 43 

 Sanguisorba 53 

 Sanicle 67 

 Sanicula 67 

 Santalaceae 34 

 Sapindaceae 59 

 Saponaria 39 

 Sarracenia 47 

 Sarraceniaceae 47 

 Sarsaparilla, Bristly 



Wild 66 

 Satureja 77 

 Savin 6 

 Savory 77 



Summer 77 

 Saxifraga 48 

 Saxifragaceae 48 

 Saxifrage 48 

 Early 48 



Family 48 

 Golden 48 

 Swamp 48 

 Scabious, Sweet 88 

 Scheuchzeria 9 

 Scirpus 22 

 Scoke, Common 37 

 Scorpion-grass 75 

 Scouring Rush 5 



Common 4 

 Scrophularia 80 

 Schrophulariaceae 79 

 Scutellaria 77 



Secale 16 

 Sedge 17 



Family 17 

 Sedum 47 

 Selaginella 6 



Rock 6 

 Selaginellaceae 6 

 Self-heal 77 

 Seneca Grass 13 

 Snakeroot 57 

 Senecio 91 

 Sensitive Fern 2 

 Service Berry 49 

 Sessile-leaved Bell- 

 34 wort 26 



Setaria 16 

 Shad Bush 49 

 Shagbark Hickory 31 

 Sharp-fruited Rush 24 

 Sharp-lobed Liver- 

 leaf 41 

 Sheep Laurel 69 



Sorrel 36 

 Sheepberry 83 

 Sheep's Fescue 12 

 Shellbark Hickory 31 

 Shepherdia 64 

 Shepherd's Purse 45 

 Shield Fern 1 



Water 40 

 Shin Leaf 70 

 Shining Club Moss 5 

 66 Cyperus 21 



Willow 30 

 Shore Shad Bush 49 



Horsetail 5 

 Short-stalked False 



Pimpernel 79 

 Short-styled Snake- 

 root 67 

 Showy Lady's Slip- 

 per 27 



Orchis 29 



Tick Trefoil 53 

 Shrubby Bitter-sweet 58 



Cinquefoil 51 

 Sicyos 84 



Side-saddle Flower 47 

 Silene 39 

 Silkweed 73 



Common 73 

 Silky Cornel 68 



Dogwood 68 



Willow 31 

 Silphium 91 



