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Data Set Maintenance: Data set standard item. Data set author(s): Hertel H. (99-01-01). Data set not revised.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: species. Lecidea. Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Hertel H., Lecideac. Exs. no. 190 (1988); type specimen label data: Germany, Niedersachsen, Harz: Rammelsberg bei Goslar, auf bodennahen, lichtoffenen Steinplatten eines kahlen Schutthügels unterhalb des Maltermeister Turmes im Bergwerksgelände, 400 m, 26 October 1982, H. Ullrich (Hertel, Lecid. Exs. 190: M, holotype).

Taxonomic Literature: Taxonomic notes: Variability of characters very insufficiently known. Hertel H., Biblioth. Lichenol. 58: 175 (1995).

Biogeography: Colline and montane. Continent: Europe (Ge: Harz) and Australasia.

Ecology: Biotroph; lichenized; episubstratic; substrate non-calciferous or metalliferous.

Thallus: Areolate (primarily areolate), continuous throughout or dispersed along the periphery, continuous in the centre; lobes angular or rounded at the front; separate thallus parts.7-1 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted or basally constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Grey or brown (beige), plane or convex; not sorediate; without thalloconidia thalloconidia.

Upper Cortex: Epicortex present. Medulla: Iodine reaction in Lugol's solution negative.

Ascocarps: Soon sessile, slightly constricted at the base, 100 per cm², .5-.8-(1.3) mm in diam.. Margin: Not flexuose, persistent, 35-50 µm wide, epruinose. Disk: Plane, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; grey (TEST); not inspersed with crystals. Epithecium: Apical cells green, turquoise, or black, cell pigment reacting with 10% HCl (in H2O). Hymenium: 55-75 µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 0-10 µm high; white. Hypothecium: White or brownish yellow.

Ascospores: Broadly ellipsoid or ellipsoid, (7.5)-9.5-10.6-(13.5) µm long, (3.5)-4.9-5.6-(6.5) µm wide; wall not ornamented.

Spot Tests: Medulla: K –, C –, PD – ascocarp margin (in section): K –, C – disk: C – hypothecium: K – epihymenium: K –.

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