Description

 Life Habit: lichenized; Thallus: squamulose to ± crustose, sometimes with enlarged peripheral lobes, often resting on a hypothallus of rhizohyphae that may be visible from above; upper surface: bluish or brownish, smooth; photobiont: primary one a cyanobacterium (Nostoc), secondary photobiont absent; Ascomata: apothecial, biatorine; proper exciple: distinct cellular, cells rounded to oblong and 15-20 µm wide, thalline margin lacking; hymenium: I+ blue; paraphyses: simple, not or slightly thickened at apices, pigmented externally; asci: with apical amyloid tubes (or plug), 8-spored; ascospores: simple, colorless, ellipsoid, often apiculate at one or both ends and with a warted or ridged epispore; Conidiomata: pycnidial, rare; conidia: bacilliform; Secondary metabolites: none detected; Geography: widespread in warm temperate to subtropical, forested habitats; Substrate: on soil, rocks and bark in sheltered, humid habitats.