77 



exposed in under-cut river bluffs but these were subject to con- 

 stant disturbance and supported no plants of interest. Other expo- 

 sures were submerged in old quarries. No calcicolous flowering 

 plants were found. 



The list of vascular plants collected on the outcrops or on asso- 

 ciated calcareous soil is an extensive one. However, it seems 

 reasonable to eliminate from consideration those dominant species 

 with a wide range in the state and also most of the species which 

 appeared at only one station. Of the latter, only those have been 

 retained which are thought to have affinities with alkaline habitats. 

 In the tabulation of occurrences of species the stations are indicated 

 by letter as follows : 



A — Madison County, steep south-facing bluff along the French 

 Broad River just west of Hot Springs. Vegetation scrubby and 

 cover incomplete, for soil is thin and anchorage largely restricted 

 to crevices in rock. 



B — Madison County, low bluff along "Shut-In-Creek," a small 

 tributary of the French Broad flowing from the south, four miles 

 west of Hot Springs. Thin mantle of soil overlying calcareous rock. 

 Mostly rich hardwood forest. 



C — McDowell County, site of old lime kiln six miles north of 

 Marion on the east side of road to Linville Falls. Open hardwoods. 

 Soil only a thin mantle and numerous small outcrops of bare rock. 



D — McDowell County, eleven miles north of Marion on west side 

 of road to Linville Falls. Lime plant in operation. Pastured slope 

 with numerous outcrops and open woods on calcareous soil. 



E — Transylvania County, Toxaway River gorge, somewhat 

 below site of defunct Lake Toxaway. Records from several out- 

 crops, some in shady woods some not. 



F — Swain County, Nantahala Gorge, east bluff of river near 

 roadside spring, "Blowing Springs," north of Nantahala Station. 

 Rich hardwoods on thin alkaline soil overlying shady marble. 



G — Swain County, Nantahala Gorge, bluff on west side of river 

 near site of active quarrying, just north of Nantahala Station. 

 Much bare marble, some young hardwoods. 



H — Stanly and Montgomery Counties — "Falls of the Yadkin 

 River," falls now inundated by power dams built below Badin. Dr. 

 J. K. Small collected Asplenium resiliens here prior to construction 

 of the dams. Apparently the station and the limestone are now cov- 



