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Data Set Maintenance: Data set standard item. Data set author(s): Scholz P. 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. Ramalinaceae Ag. (1821); Lecanorineae; Lecanorales.

Type Information: Type: Stirtoniella kelica (Stirt.) D. J. Galloway, Hafellner & Elix.

Taxonomic Literature: Galloway D.J., Hafellner J. & Elix J.A., Lichenologist 37: 261-271 (2005); Stirton J., Ann. Report Trans. Glasgow Soc. Field Naturalists 1: 15-23 [18] (1873).

Lichen Photobionts: Primary photobiont present; chlorococcal. Primary photobiont taxonomy: Chlorococcales, Eukariota. Secondary photobiont absent.

Thallus: Crustose. Upper Surface: White or greenish grey; special structures absent; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular or irregular, forming all across the thallus surface, soon sessile. Wall: Not carbonized, not fused. Margin: Indistinct; external filaments absent. Exciple: Yellow (golden). Periphyses: Absent. Epithecium: Apical cells yellow (golden). Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White (to pale brownish).

Asci: Tholus thickened, amyloid, with non-amyloid narrow axial body and amyloid convergent flanks towards apex; dehiscence lecanoralean; exoascus not amyloid.

Ascospores: c. 8 per ascus, narrowly ellipsoid or curved (slightly), 15-18-22 µm long, 4-5.5 µm wide, aciculate; septa present; transversally septate, 1-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, not constricted where the septum meets the spore wall, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Present; pycnidial; immersed (in minute thalline warts), formed all accross the thallus surface.

Secondary Metabolites: Present, of the following substance class(es): orcinol depsidones (mainly protocetraric acid).

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