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Data Set Maintenance: Data set standard item. Data set author(s): Scholz P. Data set reviewer(s): Scholz P. (06-08-01) and Triebel D. (06-12-18); not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: genus. Number of known taxa within this rank: 1. Genus of unknown placement (incertae sedis).

Biogeography: Checklist records: Sweden and Norway and United States and Canada (continental).

Lichen Photobionts: Primary photobiont present; cyanobacterial. Primary photobiont taxonomy: Chroococcales, Cyanobacteria, Prokaryota. Secondary photobiont absent.

Thallus: Crustose, squamulose. Thallus Outline: Persistent. Upper Surface: Black (brownish to dark olive); special structures absent; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, forming directly at the thallus margin, soon sessile. Wall: Not carbonized, not fused. Margin: Distinct; external filaments absent. Exciple: Dark brown. Periphyses: Absent. Epithecium: Apical cells hyaline. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed.

Asci: Tholus not amyloid; ocular chamber broad; dehiscence bitunicate (fissitunicate); exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, (25)-28-35 µm long, 10-12 µm wide, obtuse; septa present; transversally septate, 1-transversally septate, formed by the proper spore wall; wall thin (slightly thickened at the septae), not constricted where the septum meets the spore wall, hyaline, in Lugol's Solution negative, wall not ornamented.

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