Taxon: -- Select a Taxonomic Group -- All Species -------------------------- Lasallia Pertusaria Pertusariaceae Umbilicaria Umbilicariaceae Display as: Scientific NameCommon Name General   substrate    non-calciferous rock    bark    rock (unspecified) Thallus Growth Morphology   crustose growth forms    granular    rimose    areolate (flattened areoles) Ascomata   ascomata disc curvature*    weakly convex    convex   ascomata disc color*    black    blackish brown    brown Asci   tholus amyloidity pattern*    amyloid and with wide, axial body divergent towards apex (Lecanora-type)    with amyloid cap    entirely amyloid Ascospores   ascospores septation    present    absent   ascospores wall pigmentation*    medium brownish    pale brownish Upper Thallus Surface   upper surface color - overall*    brownish orange    greenish grey    brownish grey    grey    greenish brown    brown    yellowish grey    brownish green    reddish brown   upper surface pruina - presence/absence*    absent    present   upper surface structure*    smooth    verruculose    rugose (wrinkled)    verrucose

Harpers Ferry National Historical Park James P. Bennett and Clifford M. Wetmore Species Count: 3 Pertusariaceae Pertusaria pustulata Umbilicariaceae Umbilicaria mammulata Umbilicaria papulosa

This project made possible by National Science Foundation Awards: #1115116