Locality:
United States, Arkansas, Polk, OUACHITA MOUNTAIN REGION: Silver World Tunnel in Heath Valley, 12 miles E of Mena
34.518935 -94.06713 +-1751m. WGS84
Georeference Remarks:
Manually Located; Source places Silver World at this location, but cannot verify; Manually Located; Source places Silver World at this location, but cannot verify
Elevation:
366 meters
Verbatim Elevation:
ca. 1200 ft.
Habitat:
along spring-fed small stream in low woods; on tree branches
Occurrence Remarks:
with usnic and norstictic acids; medulla red - Hale 1958