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Lecidea capensis Zahlbr.

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 ochroidea Stiz. nom. illeg.; Lecidea squamifera var. bylii Zahlbr.; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Zahlbruckner A., Catal. Lich. Univ. 3: 532 (1925); type specimen label data: Republic of South Africa, Cape Prov., saxicola ad Promotorium Bonae Spei, P. MacOwan (ZT, holotype).

Taxonomic Literature: Rambold G., Biblioth. Lichenol. 34: 168-172 (1989); Hertel H., Mitt. Bot. München 28: 220 (1989).

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

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

Thallus: Areolate (primarily areolate), continuous throughout; lobes angular or rounded at the front; separate thallus parts.25-1.1 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Lemon (citrine) or pale brown, plane or convex; not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming rarely on the pro- or hypothallus, soon sessile, not constricted or slightly constricted at the base, 10-150 per cm², .7-1-(1.8) mm in diam.. Margin: Not flexuose or slightly flexuose, persistent, 35-90 µm wide, epruinose. Disk: Plane or weakly convex, black, epruinose, pruina scarce, without an umbo. Exciple: Hyphae radiating outwards; 2.5-4 µm wide; grey; not inspersed with crystals or inspersed with crystals. Epithecium: Apical cells olive or brown, cell pigment reacting with 10% HCl (in H2O), cell pigment HCl+ blue. Hymenium: 32-55 µm high; white; iodine reaction: Lugol’s positive, hemiamyloid. Subhymenium: 14-23 µm high; white. Hypothecium: Brown or dark brown.

Ascospores: Ellipsoid, (6.5)-8.2-12.3-(15) µm long, (3.3)-3.8-4.4-(5) µm wide; wall not ornamented.

Conidia: (5)-7-9-(11) µm long.

Secondary Metabolites: Present, confluentic acid (minor) or 2'-O-methylperlatolic acid (major).

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

(report generated 04.Okt.2007)

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