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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Matzer M. & Mayrhofer H. (95-01-15); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 4. Amandinea. Physciaceae Zahlbr. (1898); Lecanorineae; Lecanorales.

Taxonomic Literature: Choisy M., Bull. Soc. Linnéenne Lyon 19: 9-24 (1950); Matzer
M., Mayrhofer H. & Scheidegger Ch., Lichenologist 26: 39-46
(1994); Rambold G., Mayrhofer H. & Matzer M., Pl. Syst. Evol.
192: 31-40 (1994); Scheidegger Ch., Lichenologist 25: 315-364 (1993).

Biogeography: Checklist records: Germany, Guianas, Italy, Sonoran Desert, Sweden and Norway, United States and Canada (continental), and Namibia.

Ecology: Biotroph; lichenized; bryophytic or corticolous; substrate non-calciferous.

Lichen Photobionts: Primary photobiont present; chlorococcal. Primary photobiont taxonomy: Trebouxia (A. Beck 22-05-97); Trebouxiaceae; Trebouxiales, Trebouxiophyceae, Eukariota. Secondary photobiont absent.

Thallus: Crustose, squamulose, rimose, or areolate (primarily areolate). Upper Surface: Grey, brown, or white to brownish yellow; special structures absent. Lower Surface: Attached by the whole lower surface; special structures absent.

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

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

Ascospores: c. 8 per ascus, ellipsoid to oblong-obtuse, 10-22 µm long, 6-10 µm wide, obtuse; septa present; transversally septate, 1-transversally septate; wall not thickened at the septum to thickened at the septum, laterally constricted where the septum meets the spore wall, dark brown, in Lugol's Solution negative, wall ornamented.

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

Secondary Metabolites: Not detected to present, of the following substance class(es): ß-orcinol depsidones.

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