TYPE Not indicated; “Habitat in America ad corticem Cinchonae specierum” (Acharius 1814); “Corticola in America septentrionali prope New Bedford, unde benevole misit cl. H. Willey” (Müller 1883).

Description. Lichenized fungus.

Thallus thin, whitish. Ascomata perithecia with apical ostioles, solitary, 0.4–0.6 mm diam., erumpent to prominent, hemispherical to flattened; ostiole minute, indicated by whitish area. Wall lacking below, often surrounded by a gray ring. Asci mostly narrowly obovate, rarely almost cylindrical, (85–)100–125 × 17–22 μm. Ascospores 4–8 per ascus, biseriate, sub-biseriate or almost uniseriate, narrowly ovate, 1-septate, lower cell occasionally slightly constricted in the middle; perispore well developed, 20–30 × 7–11 μm. Pycnidia often present; conidia rod-like, 4–5 × 1 μm.

Chemistry. Thallus and ascomata UV−, K−. TLC: no substances detected.

Substrate and Habitat. On thin bark of hardwood trees in forests.

Distribution. Pantropical; in North Carolina throughout.

Literature

Acharius, E. (1814) Synopsis Methodica Lichenum. Lunda (original description as Verrucaria cinchonae).

Aptroot, A. & R. Lücking. (2016) A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales). The Lichenologist 48(6): 763-982. 

Fink, B. 1935. The Lichen Flora of the United States. University of Michigan Press, Ann Arbor (description as Arthopyrenia cinchonae).

Müller, J. (1883) Lichenologische Beiträge XVIII. Flora (Regensburg) 66(18): 286-290.