Key

Taxon:
Display:
Ascomata
  ascomata disc curvature*
   convex
   weakly convex
  epihymenium (epithecium) pigmentation*
   brown
   black
Ascospores
  ascospores septation
   present
   absent
Upper Thallus Surface
  upper surface color - overall*
   brownish orange
   greenish brown
   brownish grey
   grey
   brownish green
  upper surface structure*
   rugose (wrinkled)
   verruculose
Lower Thallus Surface & Attachment
  lower surface color - overall*
   brown
   grey
   yellowish white
  rhizine absence/presence*
   present
   absent

New River Gorge National River

James P. Bennett and Clifford M. Wetmore
Species Count: 2

Umbilicariaceae