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Lecidea poeltii Hertel

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

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

Type Information: Protologue: Hertel H., Herzogia 3: 383-386 (1975); type specimen label data: Nepal, Mahalangur Himal, Moränen des Lobuche Gletschers bei Lobuche, 5000 m, Gneiss-Stirnflächen, 23 September 1962, J. Poelt L-1187 (M, holotype).

Taxonomic Literature: Hertel Hertel H., Khumbu Himal 6: 269-272 (1977).

Biogeography: Alpine. Continent: Asia-Temperate (Nepal).

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

Thallus: Areolate (primarily areolate), continuous throughout; lobes angular or rounded at the front; separate thallus parts.3-1.7-(4) mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown (pale to yellow-brown), plane or convex (often with a microconical surface); not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming on the pro- or hypothallus, soon sessile, slightly constricted or strongly constricted at the base, 1-15 per cm², 1.2-1.8-(2.5) mm in diam.. Margin: Not flexuose, slightly flexuose, or strongly flexuose, persistent, 70-160 µm wide, epruinose. Disk: Plane to weakly convex, black, pruina abundant, without an umbo. Exciple: Grey; inspersed with crystals. Epithecium: Apical cells green or turquoise. Hymenium: 35-50 µm high; white or pale green; iodine reaction: Lugol’s positive. Subhymenium: 8-15 µm high; white. Hypothecium: Brownish yellow or brown.

Ascospores: Broadly ellipsoid, ellipsoid, or oblong, (6.5)-6.5-13-(16) µm long, (4)-4.9-5.5-(7) µm wide; wall not ornamented.

Secondary Metabolites: Present ('unknown', test. C.Culb.), gyrophoric acid (TEST).

Spot Tests: Medulla: K –, C –, 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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