TYPE. AUSTRALIA. New South Wales, track to Dangar Falls, ~2 km N of Dorrigo, 30°19’30” S, 152°42’ E, alt ~700 m, Oct 1988, A.W. Archer G 319 (NSW, holotype).

Description. Life form: lichenized fungus.

Thallus crustose, whitish, thin to evanescent; surface smooth and dull; vegetative diaspores absent. Photobiont trentepohlioid alga. Ascomata lirellae, scattered, immersed to prominent, with a conspicuous, ragged thalline margin, short to elongate to substellate, 0.5-1.0(-1.5) mm wide; disk matt black, epruinose. Exciple thin, not carbonized, apically pigmented brownish; hymenium hyaline, inspersed, 120-150 μm high. Asci monosporous; ascospores hyaline to brownish, densely muriform, 100-135 x 30-45 μm.

Chemistry. K+ yellow turning red; norstictic acid.

Substrate and Habitat. Corticolous hardwood trees.

Distribution. Pantropical; in North Carolina found in the Coastal Plain ecoregion.

Literature

Archer, A.W. (2001) The lichen genera Phaeographis and Phaeographina (Graphidaceae) in Australia 2: Phaeographina - new reports and new species. Telopea 9(2): 329-344 (original description as Phaeographina atromaculata).

Bungartz, F., R. Lücking & A. Aptroot. (2009) The lichen family Graphidaceae (Ostropales, Lecanoromycetes) in the Galapagos Islands. Nova Hedwigia 90: 1-44.

Lendemer, J.C. & K. Knudsen. (2008) Studies in lichens and lichenicolous fungi: further notes on North American taxa. Mycotaxon 103: 75-86.