204 



densis), the sycamore (Platanus occidentalis), the mulberry, the hazel (Cory- 

 lus Americana), the hornbeam (Carpinus Caroliuiana), poison ivy (Rhus 

 toxicodendron), Virginia creeper (Ampelopsis quinquefolia), grape (Vitis), 

 greenbriar (Smilax), Indian Turnip (Arisaema Dracontium), ground ivy 

 (Nepeta Glechomal, nettles, blue grass (Poa pratensis), meadow rue, straw- 

 berry (Fragaria), Impatiens, Aspidium thelypteris, Onoclea sensibilis and 

 Osmunda regalis. 



Looking forward to the futm-e of this stream we expect greater erosion, 

 retrogression toward the xerophytic, and, as the ultimate base level is ap- 

 proached, progression again toward the mesophytic. 



