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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 2. Placomaronea. Candelariaceae Hakul. (1954); Lecanorineae; Lecanorales.

Taxonomic Literature: Poelt J., Phyton (Horn) 16: 189-210 (1974); Santesson R., Ark. f. Bot. 31: 1-28 (1944).

Thallus: Foliose, not subdivided parts, placodioid, lobed or umbilicate. Upper Surface: Brownish yellow or yellow; special structures absent. Lower Surface: Attached by holdfasts; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, soon sessile. Margin: Prominent; external filaments absent. Exciple: White. Periphyses: Absent. Epithecium: Apical cells yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, amyloid, with non-amyloid wide axial body and divergent amyloid flanks towards apex; dehiscence lecanoralean.

Ascospores: More than 32 per ascus, ellipsoid, oblong, or reniform, 8.5-14.5 µm long, 3-4 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; immersed, formed all accross the thallus surface.

Secondary Metabolites: Present, of the following substance class(es): pulvinic acid derivatives.

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