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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. Piccolia. Biatorellaceae Choisy ex Hafellner & Casares-Porcel (1992); Teloschistineae; Lecanorales.

Taxonomic Literature: Hafellner J. in: Farkas E.+., Lücking R. & Wirth V. (eds), Biblioth. Lichenol. 58: 107-122 (1995).

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

Thallus: Crustose, granular. Upper Surface: Grey or white; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate or sorediate; not cephalodiate; not lobulate; without 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: Indistinct to prominent; external filaments absent. Exciple: Brown, white, or brownish yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Brown.

Asci: Tholus not thickened or thickened, amyloid, entirely amyloid throughout; dehiscence lecanoralean.

Ascospores: More than 32 per ascus, globose, 2-5 µm long, 2-5 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 or sessile to stipitate, formed all accross the thallus surface.

Secondary Metabolites: Not detected or present, of the following substance class(es): (anthra-)quinones.

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