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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: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 40. Lecania. Biatoraceae A. Massal. ex Stiz. (1862); Lecanorineae; Lecanorales.

Taxonomic Literature: Boom P.P.G. van den, Nova Hedwigia 54: 229-254 (1992); Boom P.P.G.
van den, Alonso F.L. & Egea J.M., Lichenologist 28: 395-399
(1996); Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. -
Numero Special 7: 1-893 [392-397] (1985); Ekman S., Opera Bot. 127:
1-148 (1996); Galloway D.J., Flora of New Zealand Lichens: i-lxxiii,
1-662 [208-209], Wellington (1985); James P.W. & Purvis O.W. in:
Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and
Ireland, London (1992); Mayrhofer M., Biblioth. Lichenol. 28: 1-133
(1988); Tretiach M., Lichenologist 28: 9-13 (1996).

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, or corticolous; substrate non-calciferous or calciferous.

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

Thallus: Crustose, subfruticose, granular, rimose, or areolate (primarily areolate). Upper Surface: Black, grey, green, brown, white, olive, or brownish yellow; special structures absent or present:; not pseudocyphellate; eciliate; without hairs or hairy; not isidate; not sorediate or sorediate; not cephalodiate; not lobulate; without granules or with granules granules, without thalloconidia thalloconidia. 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: Apothecioid, orbicular, forming all across the thallus surface, soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Brown, white, or brownish yellow. Periphyses: Absent. Epithecium: Apical cells brown. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White or brownish yellow.

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

Ascospores: c. 8 to 12-16 per ascus, ellipsoid or oblong, 7-25 µm long, 2-7.5 µm wide, obtuse; septa absent or present; transversally septate, 1-7-transversally septate; 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: Not detected or present, of the following substance class(es): orcinol depsidones and ß-orcinol depsides.

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