Jan., 1915.] 



Plant Distribution in Ohio. 



413 



numerous deep ravines. Pine barrens, mostly consisting of 

 Pinus virginiana are frequent. The distribution of the more 

 important Ohio species, which are mostly if not entirely confined 

 to this area and are rather generally distributed in a considerable 

 part of it are as follows: 



OHIO 



fNAAPlir. 



Distribution of Nine Species in the Western Part of the Non-glaciated 



Alleghany Plateau. 



Rather Generally Distributed in a Considerable Part of the Area. 



Pinus rigida Betula nigra. 



Pinus virginiana. Extends some- Oxydendrum arboreum. 



what beyond. Dasystoma laevigata. 



Aristida dichotoma. Salvia lyrata. 



Stylosanthes bi flora. Solidago erect. 



