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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. Number of known taxa within this rank: 1. Melanolecia. Lecideaceae Chevall. (1826); Cladoniineae; Lecanorales.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [506] (1985); Hertel H., Beih. Nova Hedwigia 24 (1967) - sub Lecidea transitoria; Poelt J. & Vezda A., Biblioth. Lichenol. 16: 1-390 [208-211] (1981) - incl. Farnoldia!

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

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

Thallus: Indistinct or crustose, not subdivided parts. Thallus Outline: Soon disappearing or persistent. Upper Surface: Green or grey; special structures absent. Lower Surface: Attached by the whole lower surface; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

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, becoming adnate to soon sessile. Margin: Prominent; external filaments absent. Exciple: Black or brown. Periphyses: Absent. Epithecium: Apical cells black, green, or grey. Interascal Hyphae: Present, scarcely branched, distinctly anastomosed. Hypothecium: Black or brown.

Asci: Tholus thickened, not amyloid or amyloid, with amyloid cap; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, ellipsoid, 8-14 µm long, 4.5-7.5 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, formed all accross the thallus surface.

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