INDEX 



327 



Stone fly, larva, 186 



Stony Island, 36, 85, 87 



Streak, 70 



Stream: action of, 3; communities, 



276, 277, 278 

 Sugar Creek, 10 



Sun, 21 ; rate of movement of, 22 

 Sundew, Drosera rotundifolia 

 Sweet Cicely, see Cicely 

 Syenite, 75, 76 



Talus, 12 



Tamarack-sphagnum bog, 179, 193, 194 



Tamarack zone, 200 



Tape grass, Vallisneria 



Temperature, effect of, on plant and 



animal distribution, 90 

 Termites, Termes flavipes, 152 

 Tiger beetle, distribution of, 148 

 Thimble weed, Anemone cylindrica 

 Thistle: 



Bull, Cirsium lanceolatum 

 Canada, C. arvense 

 Pasture or prairie, C. pumilum 

 Sand, C. Pitcher ii 

 Thorn Creek, 2, 4 

 Tickseed, Coreopsis grandiflora 

 Toadflax, bastard, Comandra umbellata 

 Toad: life-history of, 102; see Amphibia 

 Tolleston stage of Lake Chicago, 84, 87 

 Toothwort, Dent aria laciniata 

 Touch-me-not, Impatiens biflora 

 Trees : 

 Acer: 



saccharinum, river-bank maple, 

 272, 274 



saccharum, hard, rock, or sugar 



maple, 205, 206 

 Amelanchier canadensis, Juneberry, 



shadbush, sugar plum, 132, 133, 



205 

 Asimina triloba, pawpaw, 205, 208, 



274 



Betida alba, white birch, 260 

 Carpinus caroliniana, water beech, 



137, 138, 140, 205, 206, 270 

 Celtis occidentalis^ hackberry, 203, 



204, 204 

 Cercis canadensis, red-bud, 205, 206, 



208, 274 



Cornns florida, flowering dogwood, 

 205, 206, 207, 274 



Crategus, hawthorne, 228 



Fagus grandiflora, beech, 204 



Fraxinus: 



americana, white ash, 272, 274 

 nigra, black ash, 272, 274 

 Pennsylvania, red ash, 272 

 quadrangulata, blue ash, 272, 274 



Gymnocladus dioecia, Kentucky coffee 

 tree, 271, 274 



Juglans: 



cinerea, white walnut, 203, 204, 



221, 274 



nigra, black walnut, 203, 204, 221 

 Juniperus virginiana, red cedar, 124, 



127, 260 

 Larix laricina, larch, tamarack, 193, 



200 

 Lirodendron Tulipifera, tulip tree, 



20 3, 203, 274 



Nyssa sylvatica, sour gum, 178, 180 

 Ostrya virginiana, hop hornbeam, 137, 



138, 205, 206, 270 

 Pinus: 



Banks iana, jack pine, 124, 127, 260 



strobus, white pine, 7, 124, 127, 260 



Platanus occidentalis, sycamore, 203, 



204, 205, 274 

 Populiis: 



deltoides, cottonwood, 114, 116, 



120, 122, 260 

 grandidentata, large-toothed aspen, 



228, 260 

 tremoloides, small-toothed aspen, 



228, 260 

 Prunus: 



nigra, wild plum, 228 

 Pennsylvania, pincherry, 132, 133 

 serotina, black cherry, 203, 204, 204, 



221, 274 

 virginiana, choke cherry, 132, 133, 



264, 265 

 Ptelea trifoliata, hop tree, 132, 134, 



270 



Pyrus coronaria, wild crabapple, 228 

 Quercus: 



alba, white oak, 137, 138, 139 

 bicolor, swamp white oak, 139 

 coccinea, scarlet oak, 139 

 ellipsoidalis, northern pin or hill 



oak, 139 



imbricaria, shingle oak, 139 

 macrocarpa, bur oak, 139 

 marilandica, blackjack oak, 139 

 Michauxii, basket oak, 139 



