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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Elix J. A. (95-06-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 10. Dactylina. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [349] (1985); Lynge B., Skr. om Svalbard og Ishavet 59: 1-62 (1933); Poelt J. & Vezda A., Biblioth. Lichenol. 9: 1-258 [91-92] (1977); Thomson J.W. & Bird C.D., Can. J. Bot. 56: 1602-1624 (1978).

Biogeography: Checklist records: Austria, Germany, Italy, and United States and Canada (continental).

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

Thallus: Crustose or fruticose, not subdivided parts, subfruticose. Upper Surface: Brownish yellow or white; special structures absent. Lower Surface: Attached by the whole lower surface or attached by holdfasts; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, soon sessile or stipitate. Margin: Prominent; external filaments absent. Exciple: White or brownish yellow. Periphyses: Absent. Epithecium: Apical cells brown or brownish yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White or brownish yellow.

Ascospores: c. 8 per ascus, globose, 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.

Secondary Metabolites: Present, of the following substance class(es): orcinol depsides, ß-orcinol depsidones, and dibenzofurans [and usnic acids].

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