TYPE. AMERICA MERIDIONALIS [South America]. Ad corticem Bonplandiae trifoliatae (G, holotype)

Description. Life form: lichenized fungus.

Thallus crustose, whitish to whitish gray, continuous, smooth or slightly wrinkled, dull (partly corticate); vegetative diaspores absent. Photobiont trenteophlioid alga. Ascomata lirellae, erumpent, with a lateral thalline margin, long, slender, sinuous or curved, sparsely to irregularly branched; labia convergent, entire, black, often thinly whitish pruinose, disk concealed, (caesiella-morph). Exciple laterally carbonized, hymenium clear. Asci 6-8-spored; ascospores hyaline, halonate, transversely 6–10-septate, 20–39 × 7–10 μm.

Chemistry. No substances detected by TLC.

Substrate and Habitat. Corticolous and foliicolous on hardwood trees.

Distribution. Pantropical, north into eastern North America; in North Carolina found throughout.

Literature

Fée, A.L.A. (1825) Essai sur les cryptogames des écorces exotiques officinales. 180 pp (original description).

Kalb, J., R. Lücking & K. Kalb. (2018) The lichen genera Allographa and Graphis (Ascomycota: Ostropales, Graphidaceae) in Thailand – eleven new species, forty-seven new records and a key to all one hundred and fifteen species so far recorded for the country. Phytotaxa 377(1): 1-83.

Lücking, R., A.W. Archer & A. Aptroot (2009) A world-wide key to the genus Graphis (Ostropales: Graphidaceae). Lichenologist 41(4): 363-452.