64 GEOLOGY OF ILLINOIS. 



Fraxinus Americana, L., (White Ash.) 



" pubescens, Lam., (Red Ash.) 



" viridis, Micbx., (Green Ash.) 



" quadrangulata, Micbx., (Blue Ash.) 

 Gleditscbia triacauthos, L., (Three-thorned Acacia or Honey '-locust.) 

 Gynmocladus Canadensis, Lam., [Coffee Tree.) 

 Hydrangea arborescens, L., ( Wild Hydrangea.) 

 Hypericum proliflcum, L., (Shrubby St. John's Wort.) 

 Ilex decidua, Walt. 

 Juglans ciuerea, L., (Butternut.) 



" nigra, L., (Black Walnut.) 

 Juniperus communis, (Common Juniper.) 

 Liudera Benzoin, Meisner, (Spice-bush; Benjamin bush.) 

 Liqnidambar Styraciflua, L., (Sweet Gum Tree.) 

 Liriodendrou Tulipifera, L., (Tulip-tree ; Poplar.) 

 Morns rubra, L., (Red Mulberry.) 

 Negundo aceroides, Moeucb, (Box-elder.) 

 Nyssa multiflora, Wang., (Blade Gum; Tupelo.) 

 Ostrya Virginica, Willd., (Hop-hornbeam ; Leverioood.) 

 Platanus occidentalis, L., (Sycamore; Plane-tree.) 

 Populus beteropbylla, L., (Cotton Wood; Downy Poprtar.) 



" monilifera, Ait., (Necklace Poplar; Cotton Wood.) 



" tremuloides, Micbx., (American Aspen.) 

 Prinos verticillata, Gray, (Black Alder ; Winterberry.) 

 Primus Americana, Marsbell, (Wild Yellow, or Red Plumb.) 



" insititia, L., (Bullace Plumb.) 



" serotina, Ebrbart, (Wild Black Cherry.) 

 Pyrus coronaria, L., (Sweet scented Crab Apple.) 



" angustifolia, Ait., (J¥arrow-leaved Crab Apple.) 

 Ptelea trifoliata, L., Wafer Ash ; Shrubby Trefoil.) 

 Quercus alba, L., CWliiteoak.) 



" obtusiloba, Micbx., (Post-oak.) 



" macrocarpa, Micbx., (Bur or Over-cup Oak.) 



" macrocarpa, var. (!) Lyrata, Micbx., (Lyre-leaved Oak.) 



" prinus, Willd., (Sicamp Chestnut Oak.) 



" bicolor, Willd., (Swamp White Oak.) 



" castauea, Mubl., (Chestnut Oak.) 



" tinctoria, Bartram, (Black or Tanner's Oak.) 



" coccinea, Wang., (Seat-let Oak.) 



" rubra, L. (Red Oak.) 



" palustris, Micbx., (Pin or Water Oak.) 



" nigra, L., (Black-Jack or Barren Oak.) 



" Pbellos, L., (Willow Oak.)' 



" imbricaria. Micbx., (Laurel or Shingle Oak.) 



