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Miriquidica lapponica A. J. Schwab & Rambold

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. (96-02-07). Data set reviewer(s): Kainz C. (00-11-16); to be published after submission; 96-02-07.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Miriquidica. Lecanoraceae Körb. (1855).

Taxonomic Literature: Rambold G. & Schwab A.J. 1990. Rusty coloured species of the lichen genus Miriquidica (Lecanoraceae). - Nord. J. Bot. 10: 117-121.

Biogeography: Continent: Europe.

Ecology: Biotroph; lichenized; substrate non-calciferous.

Thallus: Crustose, areolate (primarily areolate) or granular; separate thallus parts thin (ca. 0.5 mm). Thallus Outline: Simple; soon disappearing. Upper Surface: Grey, red, white, brownish yellow, or orange, rough; not sorediate. Lower Surface: Not rhizinate.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Soon sessile, slightly constricted at the base, .8-1.5 mm in diam.. Margin: Excluded, indistinct to prominent. Disk: Plane to weakly convex, black, epruinose. Exciple: Grey or white. Parathecium (proper excipulum): White, inspersed with crystals. Amphithecium (thalline excipulum): Present. Epithecium: Apical cells slightly swollen, olive. Hymenium: White. Hypothecium: White.

Ascospores: Ellipsoid, 9-12 µm long, 5-6 µm wide.

Conidiomata: Immersed.

Conidia: Filiform or curved; 10-12 µm long.

Secondary Metabolites: Lobaric acid and norstictic acid (in traces).

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)

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