Home >> Checklist: Harpers Ferry National Historical Park >> Previous version of Key >> Identification Key (new version): Harpers Ferry National Historical Park
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General
substrate
non-calciferous rock
bark
rock (unspecified)
Thallus Growth Morphology
crustose growth forms
granular
rimose
areolate (flattened areoles)
Ascomata
ascomata disc curvature*
convex
weakly convex
ascomata disc color*
blackish brown
black
brown
Asci
tholus amyloidity pattern*
with amyloid cap
entirely amyloid
amyloid and with wide, axial body divergent towards apex (Lecanora-type)
Ascospores
ascospores septation
absent
present
ascospores wall pigmentation*
medium brownish
pale brownish
Upper Thallus Surface
upper surface color - overall*
brownish orange
brownish green
brownish grey
greenish grey
brown
grey
greenish brown
reddish brown
yellowish grey
upper surface pruina - presence/absence*
present
absent
upper surface structure*
smooth
verrucose
verruculose
rugose (wrinkled)
James P. Bennett and Clifford M. Wetmore
Species Count: 3
Pertusariaceae
Pertusaria pustulata
Umbilicariaceae
Umbilicaria mammulata
Umbilicaria papulosa