Thallus thick or moderately thick, continuous or rimose-diffract, white, opaque, unequal, KOH-, soredia lacking, medulla iodine bluish, hypothallus white or black throughout or dark-limited. Apothecia immersed in thallus, deformed, 0.3-1.5 mm broad, disc plane or slightly concave, black, naked, opaque, almost soon or eventually surrounded by moderately thin, prominent, white or nearly ashy grayish, subpruinose, lecideine and lacking gonidia margin. Hypothecium white or pale, hyphae suberect. Epithecium subolivaceous-black. Paraphyses tightly coherent. Spores ellipsoid or subglobose, 0.012-0.021 mm long, 0.009-0.013 mm thick.
Distr. LEnont.: On rock in river Kilpisjoki in subalpine region (J.P. Norrlin).
External appearance aspicilioid, calling to mind Lecanora phaeopide Nyl., but it has lecideine perithecia. Thallus surface partly crowded, rimulose, >>CaCl2O2- >>(Th. Fr.), cortical layer thin, formed from erect hyphae, partly subevanescent, medulla impellucid (hyphae granules in H2SO4 incrusted with acicular, elongate crystals). Apothecia commonly crowded, margin angular or slightly flexuose, not above the thallus. Perithecium impellucid white, marginal part dark, almost destroyed by being covered above by thin hyaline layer. Hypothecium hyphae conglutinate, thin, circ. 0.035-0.050 mm thick, thalline layer, lacking gonidia, white. Hymenium circ. 0.110-0.120 mm thick, >>iodine bluish, then somewhat wine red>> (sec. Nyl.) Paraphyses gelatinous, above sparingly ramose-connected, otherwise simple, tubules 0.001—barely 0.0015 mm broad, in apices not very dilated. Asci moderately broadly clavate, in apices membrane commonly well-thickened. Spores 8 or a few aborted (and then 4 and 2), distichous, apices rounded or obtuse, membrane commonly gelatinous-thickened. Conidangia >>part of conceptacle immersed, hyaline; conidia straight and each fusiform towards apices (or only the second apex fusiform); 0.008-0.010mm long, 0.001 mm thick>> (sec. Nyl.). Gonidia cystococcaceous, globose and subglobose and ellipsoid, furthermore sometimes containing many autospores.