TYPE. UNITED STATES. West Virginia, Pendleton County, near Onego, on Quercus alba in oak woods, Aug. 1956, M.E. Hale 63 (H, LD, MICH, isotypes).
Description. Life form: lichenized fungus.
Thallus foliose, adnate, 4-8(-16) cm broad; lobes rounded, mostly 3-6 mm wide. Upper surface greenish gray, shiny, spotted with sparse maculae and white pseudocyphellae, lobulate; lobules finely divided and often branched, covering the surface and sometimes the margins. Lower surface black, at least in center, pale brown at the edges; rhizines sparse to abundant. Ascomata lecanorine apothecia, rare.
Substrate and Habitat. On hardwood trees, occasionally rocks in deciduous forests.
Distribution. Eastern North America; in North Carolina found throughout, primarily in Blue Ridge ecoregion.
Literature
Brodo, I.M., S. Duran Sharnoff & S. Sharnoff. (2001) Lichens of North America. Yale University Press, New Haven & London. 795 pp.
Hinds, J.W. & P.L. Hinds (2007) The Macrolichens of New England. Memoirs of the New York Botanical Garden No. 96. New York Botanical Garden Press, Bronx, New York. 584 pp.