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Lecidea sinensis 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., Lich. Central Asia 1: 58-59 (1940); type specimen label data: China, Kansu, Jindirte, east of Taben-buluk, 2500 m, 3 August 1931, B. Bohlin 650 (S, holotype).

Taxonomic Literature: Hertel H., Khumbu Himal 6: 277-279 (1977); Andreev M.P., Baibultova N.E., Novit. Syst. Plant. Non Vasc. 22: 168 (1985); Andreev M.P., Kudratov I., Botan. Zhurn. 77: 107 (1992).

Biogeography: Colline, montane, and alpine. Continent: Asia-Temperate (China: Kansu).

Ecology: Biotroph; lichenized; episubstratic; substrate non-calciferous or calciferous (carbonate content very small).

Thallus: Areolate (primarily areolate), continuous throughout; lobes angular or rounded at the front; separate thallus parts 2-5 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown (beige), convex; not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming on the pro- or hypothallus, soon sessile, not constricted or slightly constricted at the base, 15-35 per cm², .8-1.5-(1.7) mm in diam.. Margin: Not flexuose, excluded, indistinct, 5-30 µm wide, epruinose. Disk: Plane to weakly convex, black, epruinose, without an umbo. Exciple: Grey; inspersed with crystals. Epithecium: Apical cells olive. Hymenium: 35-45-(65) µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 30-40 µm high; white. Hypothecium: Brown.

Ascospores: Broadly ellipsoid or ellipsoid, (6)-7.4-7.8-(11) µm long, (4)-4.7-5.1-(6.5) µm wide.

Secondary Metabolites: Present, gyrophoric acid (TEST) and lecanoric acid (TEST).

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

(report generated 04.Okt.2007)

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