THE PHYSIOGRAPHIC ECOLOGY OF THE CINCINNATI REGION. 
BY E. LUCY BRAUN. 
Page 
CONTENTS. 
Page 
I. Introduction . 
H. Upland Series . 
A. Forest Associations . 121 
1. Depressions . 121 
2. Undrained flats .. 128 
3. Stages of the succession in depressions and on undrained 
flats . 13^ 
4. Drained and gently rolling uplands. 135 
5. The pre-erosion climax forest. 137 
6. Morainal belt .. .. 137 
7. Margins of uplands; narrow divides. 138 
B. Clearing Associations . 139 
1. Meadows . 139 
2. Reforesting areas . 142 
HI. Slope Series . 144 
A. Ravines . 14® 
1. The typical ravine. 146 
2. Modifications of the typical ravine. 157 
B. River Bluffs . 1^2 
1. Rock bluffs . 162 
2. Clay bluffs . 169 
3. Gravel bluffs . I’i'l 
C. Clearing Associations . 173 
D. The Erosion Climax Forest. 176 
IV. Terraces and Filled Valleys. 177 
A. Gravel Terraces . .. .. 177 
1. Forest associations . 177 
2. Clearing associations . 178 
B. Sand and Silt Terraces. 179 
C. Filled Valleys . 180 
1. The Norwood trough. 180 
2. Upper Mill creek valley area. 182 
3. The Miami-Whitewater valley. 186 
V. Flood Plain Series. 187 
A. The Beach-like Shores... 187 
1. Gently sloping beach-like shores. 188 
2. Steep river banks. 189 
B. Islands . 102 
C. The Flood Plain... 194 
1. Pond-swamp associations . 194 
2. Meadow associations; clearings. 198 
3. Forest associations . 198 
VI. General Conclusions and Summary. 207 
