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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: 1. Bryophagus. Synonyms: Gloeolecta Lett.; Gyalectaceae (A. Massal.) Sitzenb. (1862); Gyalectales.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [206] (1985); Purvis O.W. & James P.W. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992); Vezda A., Folia Geobot. Phytotax. 12: 154-175 (1966) - sub Gloeolecta.

Biogeography: Checklist records: Austria, Germany, Great Britain, and Sweden and Norway.

Lichen Photobionts: Primary photobiont present; chlorococcal. Primary photobiont taxonomy: Gloeocystis (A. Beck 22-05-97); genus incertae sedis; family of unknown placement (incertae sedis), Chlorophyceae, Eukariota. Secondary photobiont absent.

Thallus: Crustose, not subdivided parts. Upper Surface: Brownish yellow or olive; 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, orbicular, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: External filaments absent. Exciple: White or brownish yellow. Periphyses: Absent. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed.

Ascospores: c. 8 per ascus, cylindrical, filiform, or fusiform, 12-30 µm long, 1-4 µm wide; septa present; transversally septate, 3-6-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.

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