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Lecidea atromorio C. Knight

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 fumosella Müll.Arg., Lecidea pallidoatra Nyl.; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Knight C., Trans. Proc. New Zealand Inst. 8: 315-316 (1876); type specimen label data: New Zealand, [no locality, but probably surroundings of Wellington], Ch. Knight (M, lectotype).

Taxonomic Literature: Hertel H., Beih. Nova Hedwigia 79: 417 (1984); Hertel H., Mitt. Bot. München 21: 321-322 (1985); Hertel H., Mitt. Bot. München 28: 219 (1989); Rambold G., Biblioth. Lichenol. 34: 165-167 (1989).

Biogeography: Colline and montane. Continent: Africa (Cape Prov.) and Australasia (Australia, Tasmania, N.Z.).

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

Thallus: Areolate (primarily areolate), continuous throughout; lobes angular at the front; separate thallus parts.2-.5-(.7) mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown (sometimes pale), plane or 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, not constricted or slightly constricted at the base, 50-200 per cm², .3-.6-(1.3) mm in diam.. Margin: Not flexuose, persistent or excluded, indistinct, 30-50 µm wide, epruinose. Disk: Plane, black, epruinose, without an umbo. Exciple: Grey or pink (rosé); inspersed with crystals. Epithecium: Apical cells olive, green, or turquoise. Hymenium: Normally white, pale green, or pink (rosé); iodine reaction: Lugol’s positive (bluish brown). Subhymenium: 10-30 µm high; white. Hypothecium: Brown.

Ascospores: Ellipsoid, (7)-8.6-10.2-(14.5) µm long, (3)-3.8-4.6-(6) µm wide; wall not ornamented.

Conidia: (5.5)-6.5-7-(8) µm long.

Secondary Metabolites: Present, gyrophoric acid, lecanoric acid (minor), or norstictic acid (minor).

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

(report generated 04.Okt.2007)

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