TYPE. BRAZIL. Brasilia privinc., C.F.P. Martius s.n. (M M-0102169 / 554362 / 233612, lectotype designated by B. Staiger / M. Mathis-Leight, 2000).
Description.Life form: lichenized fungus.
Thallus crustose, partly endophloedal, whitish to brownish, thin, continuous; vegetative diaspores absent. Photobiont trentepohlioid alga. Ascomata lirellae, round to oval, immersed to prominent; disk open, concave to flat, brown-blackish, inconspicuously pruinose; excipular rim thin, papery, raised. Exciple apically carbonized, pale yellowish brown below, wedge-shaped, surrounded by thin, distinct thallus layer; hymenium hyaline, inspersed, I-. Asci 8-spored; ascospores brownish, 5-11-septate, 25-45 x 7-10 μm.
Chemistry. No substances detected by TLC.
Substrate and Habitat. Corticolous hardwood trees.
Distribution. Pantropical (Neotropics, Australasia, Oceania) north into southeastern North America; in North Carolina found in the Coastal Plain ecoregion.
Bungartz, F. R. Lücking & A. Aptroot (2009) The lichen family Graphidaceae (Ostropales, Lecanoromycetes) in the Galapagos Islands. Nova Hedwigia90: 1-44.
Eschweiler, F.G. (1824) Systema lichenum, genera exhibens rite distincta, pluribus novis adaucta. Norimbergiae. 26 pp (original description as Lecanactis lobata).
Lücking, R., F. Seavey, R. Common, S.Q. Beeching, O. Breuss, W.R. Buck, L. Crane, M. Hodges, B.P. Hodkinson, E. Lay, J.C. Lendemer, R.T. McMullin, J.A. Mercado-Díaz, M.P. Nelsen, E. Rivas Plata, W. Safranek, W.B. Sanders, H.P. Schaefer Jr., & J. Seavey. (2011) The lichens of Fakahatchee Strand Preserve State Park, Florida: Proceedings from the 18th Tuckerman Workshop. Bulletin of the Florida Museum of Natural History49(4): 127-186.
Seavey, F., J. Seavey, J. Gagnon, J. Guccion, B. Kaminsky, J. Pearson, A. Podaril, & B. Randall. (2017) The lichens of Dagny Johnson Key Largo Hammock Botanical State Park, Key Largo, Florida, USA. Bulletin of the Florida Museum of Natural History53(5): 201–268.