45 



It so chanced that Dr. Mohr did very little collecting 

 in that part of the State covered by this list. He, how- 

 ever, made one \dsit to the rugged mountainous region 

 in Clav countv and secured a number of plants that 

 were not taken by us. A few plants have also from time 

 to time been collected in this region by various mem- 

 bers of the State Geological Survey. Fifty-two plants 

 from these sources are recorded by Dr. Mohr from this 

 region that do not appear in our collections. These are 

 included in this list, the proper credit being given. It 

 is probal)le that the specimens representing them are all 

 in the herbarium at Tuscaloosa. 



The Metamorphic region of Alabama as mapped by 

 the State Geological Survey, is a triangular area lying on 

 the eastern side of the State. It extends from near the 

 southeast corner of Lee county at a point nearly oppo- 

 site Columbus, Ga., northerly along the State line for 

 about a hundred miles to a point in the northern part 

 of Cleborne county. From this point the second side of 

 the triangle extends southwestwardlv for about the same 

 distance, to a point in Chilton county, some three miles 

 east of the line of the Louisville & Nashville railroad, 

 and from here another hundred miles east-southeast to 

 the point of beginning. This area comprises the south- 

 ernmost extension of the Appalachian mountain system. 

 It is underlaid by granite and other metamorphic rocks 

 which exert their usual influence on the topography, 

 giving high, rugged hills and frequent exposures of bare 

 rock. There are, however, few vertical or overhanging 

 cliffs, such as are frequent to the north and west in the 

 region underlaid by the coal measures. The soil varies 

 from a light and rather coarse sandy loam to the red 

 hornblendic soil so characteristic of the Piedmont reaion 

 of Georgia. In many places it is much incumbered ^ith 

 angular fragment of quartz and other hard resistant 



