292 INDEX TO PART IIT 
Salix Russelliana, 164, 
viridis, 164, 
vitellina, 164, 
Sapindaces, 81. 
Sapodilla Family, 118, 
Sapotaces, 118. 
Sassafras, 130, 131. 
Searlet-fruited Thorn, 104. 
Searlet Oak, 156. 
Sciadopitys, 191. 
Scotch Elm, 134, 
Fir, 177. 
Pine, 177. 
Scrophulariaces, 127. 
Serub Oak, 157. 
Pine, 177, 178. 
Seaside Alder, 148. 
Sequoia, 192, 193. 
Service-berry, 107. 
Shad-bush, 107. 
Shagbark Hickory, 142. 
Sheep-berry, 114. 
Shellbark Hickory, 142. 
Shepherdia, 132. 
Shingle Oak, 158, 
Shining Willow, 164. 
Shrubby Trefoil, 74. 
Siberian Cornel, 111. 
Silver Fir, 185. 
Silk-tree, 96. 
Silverbell-tree, 121. 
Silver Cedar, 190. 
Fir, 184-187. 
Maple, 85. 
Spruce, 181. 
Silver-leaved Eleagnus, 132, 
Simarubacee, 76. 
Single Spruce, 179. 
Slippery Elm, 134. 
Sloe, 98. 
Smoke-tree, 91. 
Smooth Alder, 148. 
Sumae, 90. 
Soapberry Family, 81. 
Sorrel-tree, 116, 
Sour Gum, 112, 113. 
Sourwood, 116. 
Southern Cypress, 192. 
Spanish Oak, 156, 157. 
Speckled Alder, 147. 
Spice-bush, 131. 
Spindle-tree, 78. 
Spruce, Alcock’s, 181. 
Black, 179. 
Double, 179. 
Eastern, 181. 
Himalayan, 181. 
Norway, 180. 
Oriental, 181. 
Silver, 181, 
Single, 179. 
Tiger’s-tail, 180. 
White, 179. 
Spurge Family, 132, 
Stag-horn Sumac, 90. 
Sterculia, 71. 
Sterculiaces, 71. 
Stone-pine, 173. 
Storax, 120. 
Storax Family, 120, 
Striped Maple, 85. 
Stuartia, 69, 70. 
Styracacer, 120. 
Styrax, 120. 
Sugarberry, 136. 
Sugar Maple, 86. 
Pine, 172. 
Sumac, 90, 91. 
Summer Haw, 106. 
Swamp Hickory, 143, 
Magnolia, 63. 
Oak, 156. 
Post-oak, 154. 
White Oak, 154. 
Sweet Bay, 63. 
Birch, 146. 
Buckeye, 82. 
Gum, 108. 
