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mt'sopbytic is shown by the presence of Fagus graudifolia and Acer sac- 

 charum, the latter Ix-iug very abnndant. This forest is rather open yand 

 this probably accounts for the absence of all ferns. Polypodium is found 

 in siniilar locations in this region, however. Mosses are abundant on the 

 ground and on fallen logs. The only liverwort is Porella, occurring abun- 

 dantly on tree trunks near the ground. 



In order to establish the fact that the forest represents the ultimate 

 stage of the succession for this region, a primeval mesophytic forest near 

 AVilliamsburg, Ind., about ten miles distant, was studied and a list of the 

 species found there is given below. On this list, those species marked by 

 an asterisk occurred also in the forest on the east bluff of the gorge at 

 Test's Mills. A study of the list will lead to the conclusion that the ulti- 

 mate stage of the succession has been reached here : 



*Carya ovata 



*Carpinus caroliniana 

 *Fraxinus americana 

 *Fagus grandifolia 

 *Aesculus glabra 

 *Ostrya virginiana 

 *Cornus florida 

 *Acer saccharum 

 *Carya cordiformls 

 *Ulmus racemosa 

 *Asimina triloba 

 *Morus rubra 

 *Smilax hispida 

 *Psedera quinquefolia 

 *Ribes cynosbati 

 *Juniperus communis 

 *Vitis vulpina 

 *Rosa setigera 



Benzoin aestivale 

 *Rhus toxicodendron 



Celastrus scandens 

 *Menispermum canadon.-^e 

 * Viburnum prunifolium 

 *Rambucus canadensis 



Mitchella I'epens 



*Ulmus americana 

 *Ulmus fulva 

 *Tilia americana 

 *Quercus alba 

 *Fraxiuus quadrangulata 

 *Celtis occidentalis 

 *Quercus rubra 



Aralia nudicaulis 

 *Urtica gracilis 



Polygonum virgin ianum 

 *Bldens frondosa 



Monotropa uniflora 



Epifagus virginiana 



Smilacina racemosa 



Boehmeria cylindrica 

 *Aristolochis serpentaria 



Sanguinaria canadensis 

 *Solanum nigrum 



Polygonatum comnnitatum 



Cryptotiienia canadensis 



ActiTea spicata 



Viola pubescens 



Monarda fistulosa 



