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Lecidea haerjedalica H. Magn.

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:-; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Magnusson A.H., Bot. Notiser 1948: 403-404 (1948); type specimen label data: Sweden, Härjedalen, Tännäs, Rössvålen, at snowfree top of mountain, 5 April 1947, Birgit Magnusson (UPS, holotype).

Taxonomic Literature: Hertel H., Decheniana 127: 66 (1975); Hertel H., Khumbu Himal 6: 250-251 (1977); Hertel H., Herzogia 5: 451 (1981); Hertel H., Mitt. Bot. München 17: 173 (1981); Clauzade G., Roux C., Bull. Soc. Bot. Centre-Ouest, nouv. ser., num. spec. 7: 461 (1985); Hertel H., Biblioth. Lichenol. 58: 158 (1995).

Biogeography: Montane and alpine. Continent: Europe (Au, Br, It, No, Su), Southern America (Argentina), and Asia-Temperate (Nepal).

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

Thallus: Not subdivided parts, areolate (primarily areolate), dispersed throughout and distinctly seperate; lobes angular at the front; separate thallus parts 0 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: White, plane; not sorediate; without thalloconidia thalloconidia.

Medulla: Iodine reaction in Lugol's solution negative to in Lugol's solution positive.

Ascocarps: Soon sessile, slightly constricted to strongly constricted at the base, 60-200 per cm², .4-.8-(1.3) mm in diam.. Margin: Not flexuose to slightly flexuose, persistent, 30-150 µm wide, epruinose. Disk: Plane to weakly convex to strongly convex, black, epruinose, without an umbo. Exciple: Hyphae radiating outwards; 3-3.5 µm wide; grey to pink (rosé); not inspersed with crystals. Epithecium: Apical cells turquoise (An.-Nr. 2182 from Greenland) or very dark brown or black, cell pigment reacting with 10% HCl (in H2O). Hymenium: 50-70 µm high; white or pink (rosé); iodine reaction: Lugol’s positive. Subhymenium: 0-30 µm high; white. Hypothecium: White or brownish yellow.

Ascospores: Ellipsoid, (6)-8.6-11.3-(14) µm long, (4)-4.8-5.7-(6.5) µm wide; wall not ornamented.

Secondary Metabolites: Not detected.

Spot Tests: Medulla: K –, C –, PD – ascocarp margin (in section): K – or + bluish red, C – disk: C – hypothecium: K – or + purplish brown (chinoide reaction); epihymenium: K –.

(report generated 04.Okt.2007)

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