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Lecidea fuscoatrula Nyl.

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: Nylander W., Lich. Novae Zeland. 106 (1888); type specimen label data: New Zealand, Otago, Kaikerai Hill near Dunedin, on basaltic boulders, 1861, L. Lindsay (H-Nyl 15369).

Taxonomic Literature: Hertel H., Beih. Nova Hedwigia 79: 418 (1984); Hertel H., Mitt. Bot. München 28: 221 (1989); Rambold G., Biblioth. Lichenol. 34: 173-176 (1989).

Biogeography: Colline and montane. Continent: Africa (South 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.1-.4-(.7) mm thick. Thallus Size and Differentiation: Large or small; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown (yellow brown), plane; not sorediate; without thalloconidia thalloconidia.

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

Ascocarps: Forming on the pro- or hypothallus, not constricted or slightly constricted at the base, 90-300 per cm², .4-.5-(.8) mm in diam.. Margin: Slightly flexuose or strongly flexuose, persistent or excluded, 25-50 µm wide, epruinose. Disk: Plane to weakly convex, black, epruinose, pruina scarce, without an umbo. Exciple: Grey; not inspersed with crystals or inspersed with crystals. Epithecium: Apical cells olive or black. Hymenium: 35-55 µm high; white, pale green, or pink (rosé); iodine reaction: Lugol’s positive. Subhymenium: 10-25 µm high; white. Hypothecium: Brown.

Ascospores: Ellipsoid, (7)-8.7-10-(11) µm long, (3.5)-4.3-5.1-(5.5) µm wide; wall not ornamented.

Conidia: (5)-7-9-(10) µm long.

Secondary Metabolites: Present, confluentic acid, 2'-O-methylmicrophyllinic acid, norstictic acid, and stictic acid.

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

(report generated 04.Okt.2007)

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