196 



Sedge Family, 115. 

 Sedum, 52. 

 Seed-box, 54. 

 Selaginella, 131. 

 Self Heal, 82. 

 Sempervivum, 52. 

 Senecio, 67. 

 Sensitive Fern, 135. 

 Sensitive Plant, 47. 

 Sericocarpus, 61. 

 Setaria, 130. 

 Sliadbush, .51. 

 Shagbai'k Hickory, 96. 

 Sheep-berry, 59. 

 Sheep's Fescue, 127. 

 Sheep Sorrel, 92. 

 Shepherd's Purse, 34. 

 Shining Willow, 100. 

 Shin-leaf, 74. 

 Showy Orchis, 107. 

 Shrubby Althaea, 40. 

 Shrubby Cinque-foil, 49. 

 Sickle-pod, 33. 

 Sicyos, 55. 



Side-saddle Flower, 32. 

 Silene, 38. 

 Silkweed, 87. 

 Silky Cornel, 58. 

 Silky Willow, 99. 

 Silphium, 64. 

 Silver-weed, 49. 

 Silvery Cinque-foil, 48. 

 SiphoneaB, 165. 

 Sisymbrium, 33. 

 Sisyrinchium, 110. 

 Slum, 56. 

 Skull-cap, 82. 

 Skunk Cabbage, 103. 

 Sleepy Catchfly, 38. 

 Slender Blue Flag, 110. 

 Slippery Elm, 94. 

 Small Bedstraw, 59. 

 Small Bitter Cress, 33. 

 Small Bugloss, 83. 



Small Cranberry, 71. 



Smaller Solomon's Seal, 112. [109. 



Smaller Yellow Lady's Slipper, 



Small-flowered Crowfoot, 30. 



Small-flowered Sweet Brier, 50. 



Small Magnolia, 31. 



Small Nettle, 95. 



Small Pansy, 36. 



Smilacese, 110. 



Smilacina, 111. 



SmilEecina bifolia, 112. 



Smilax, 110. 



Smilax Family, 110. 



Smooth Sumach, 42. 



Smooth Sweet Cicely, 57. 



Smooth Wintefberry, 74. 



Snake-head, 78. 



Snapdragon, 78. 



Sneeze-weed, 66. 



Sneezewoit, 66. 



Snowberry, 58. 



Soapberry Family, 43. 



Soapwort, 37. 



Soft Chess, 127. 



Soft Eush, 113. 



Solanacese, 85. 



Solanura, 85. 



Solidago, 63. 



Solieria (Khabdonia), 160. 



Solomon's Seal, 112. 



Sonchus, 69. 



Sorghum, 130. 



Sorrel, 41. 



Sow Thistle, 69. 



Sparganium, 104. 



Spartina, 125. 



Spearmint, 81. 



Speckled Alder, 99. 



Specularia, 71. 



Speedwell, 79. 



Spergula, 39. 



Spergularia (Lepigonum), 39. 



Sphacelaria, 164. 



SphaBrococcoidefE, 159. 



