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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. Synonyms: Lecidea promiscua var. cerviniicola (de Lesd.) Clauzade & Roux; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Bouly de Lesdain M., Bull. Soc. Bot. France 102: 231 (1955); type specimen label data: Italy, Prov. Val d'Aosta, Breuil (Cervinia), sub monte Cervinia (Matterhorn), August 1953, G. Solari (UPS, isotype).

Taxonomic Literature: Culberson C.F., Hertel H., Bryologist 75: 374 (1972); Hertel H., Decheniana 127: 63 (1975); Hertel H., Khumbu Himal 6: 241 (1977); Rambold G., Biblioth. Lichenol. 34: 202-205 (1989); Hertel H., Biblioth. Lichenol. 58: 155-156 (1995).

Biogeography: Alpine. Continent: Europe (Au, He, Hs, It) and Australasia (Australia: Mt Kosciusko).

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

Thallus: Not subdivided parts, areolate (primarily areolate), continuous throughout, dispersed along the periphery, continuous in the centre, or dispersed throughout and distinctly seperate; lobes angular at the front; separate thallus parts 0-.7 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: White, lemon (citrine), brownish yellow, or pale grey, plane; not sorediate; without thalloconidia thalloconidia.

Ascocarps: Soon sessile, strongly constricted at the base, 10-200 per cm², .8-1.5-(2.5) mm in diam.. Margin: Not flexuose or slightly flexuose, persistent or excluded, 70-150 µm wide, epruinose. Disk: Plane, weakly convex, or strongly convex, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; 3-(?2.0-)-5 µm wide; grey (TEST); inspersed with crystals. Epithecium: Apical cells olive or rarely green, cell pigment reacting with 10% HCl (in H2O), cell pigment HCl+ blue. Hymenium: (35)-40-55-(60) µm high; white; iodine reaction: Lugol’s positive. Subhymenium: (10)-15-30-(40) µm high; white. Hypothecium: Brown.

Ascospores: Cylindrical, (6)-8.5-11.4-(13.5) µm long, (2.5)-3.2-4.1-(5) µm wide; wall not ornamented.

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

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