412 
The Ohio Naturalist. 
[Vol. XV, No. 3, 
Others are named in the list given below of “Northeastern and 
northern plants having a north-eastern distribution in Ohio.” 
II. The Eastern Division of the non-glaeiated Alleghany 
Plateau extends eastward from an undetermined transition line 
west of the Muskingum valley. This area apparently lacks the 
white pine and tamarack present to the north and also the pitch 
pine and sorrel tree of the rougher highland to the west. The 
scrub pine is also apparently absent except on the western edge. 
Isolated localities have Juniperus virginiana and Tsuga canadensis. 
III. The Western Division of the non-glaciated Alleghany 
Plateau included in this area has its western boundary following 
closely the eastern limit of the Ohio Shale in southern Ohio and 
the terminal glacial moraine. It is a rugged hilly upland cut by 
