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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: 12. Belonia. Gyalectaceae (A. Massal.) Sitzenb. (1862); Gyalectales.

Taxonomic Literature: Hafellner J. & Kalb K. in: Farkas E.+., Lücking R. & Wirth V. (eds), Biblioth. Lichenol. 58: 161-186 [175] (1995); Jørgensen P.M., Vezda A. & Botnen A., Lichenologist 15: 45-55 (1983); Navarro-Rosinés P. & Llimona X., Lichenologist 29: 15-27 (1997); Purvis O.W. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992); Vezda A., Príridov. Cas. Slezsky 20: 241-253 (1959).

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

Ecology: Biotroph; lichenized; terricolous, bryophytic, or corticolous; substrate calciferous.

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

Thallus: Indistinct or crustose, not subdivided parts, granular or rimose. Upper Surface: Grey, brownish yellow, pink (rosé), or white; 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: Apothecioid or perithecioid, orbicular, forming all across the thallus surface, not emerging, becoming adnate. Margin: Distinct; external filaments absent. Exciple: Brown, white, brownish yellow, or pink (rosé). Periphyses: Absent. Epithecium: Apical cells hyaline. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Ascospores: c. 4 to c. 8 per ascus, filiform or fusiform, 50-160 µm long, 3-7 µm wide, obtuse or aciculate; septa present; transversally septate or both transversally and longitudinally (rarely longitudinal septa), (7)-10-38-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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