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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Scholz P. (02-05-13); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 9 (Breuss 2002). Agonimia. Verrucariaceae Zenker (1827); Verrucariales.

Taxonomic Literature: Breuss O. in: Nash T.H. III et al. (eds), Lichen Flora of the Greater Sonoran Desert Region vol. 1: 90-91, Tempe (2002); Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [153] (1985); Coppins B.J. & Bennell A.P., Lichenologist 11: 107-108 (1979); Galloway D.J., Flora of New Zealand Lichens: i-lxxiii, 1-662 [4], Wellington (1985); James P.W. in: Poelt J. & Vezda A., Biblioth. Lichenol. 16: 1-390 [107] (1981); Poelt J., Bestimmungsschlüssel Europäischer Flechten: 1-757 [93] (1969); Purvis O.W. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992).

Biogeography: Checklist records: Austria, Germany, Great Britain, Italy, New Zealand, Sonoran Desert, Sweden and Norway, and United States and Canada (continental).

Ecology: Biotroph; lichenized; terricolous, bryophytic (and detritus), or corticolous.

Lichen Photobionts: Primary photobiont present; chlorococcal. Secondary photobiont absent.

Thallus: Crustose, squamulose or granular. Upper Surface: Grey, olive, or 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 or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, forming all across the thallus surface or directly at the thallus margin, not emerging, becoming adnate to soon sessile. Margin: Indistinct; external filaments absent. Exciple: Black, brown, white, or brownish yellow. Periphyses: Present. Hymenium: Iodine reaction: Lugol’s positive, hemiamyloid. Interascal Hyphae: Absent. Hypothecium: Brown, white, or brownish yellow.

Asci: Tholus not thickened or slightly thickened, not amyloid; dehiscence verrucarial; exoascus not amyloid, not hemiamyloid.

Ascospores: 1–2, c. 4, or c. 8 per ascus, ellipsoid or oblong, 60-150 µm long, 20-50 µm wide, obtuse; septa present; both transversally and longitudinally; wall thin, not thickened at the septum, hyaline or pale brown, in Lugol's Solution negative, wall not ornamented.

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