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Lecidella sublapicida (C. Knight) Hertel

Data Set Maintenance: Data set compiled. Data set author(s): Kainz C. Data set reviewer(s): Kainz C.; revised @EXCL@ not revised (01-09-04); to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Lecidella. Synonyms: Lecidella tristicula (Müll. Arg.) Hertel; Lecidea nesophila
Müll. Arg.;
Lecanoraceae Körb. (1855); Lecanorales.

Type Information: Basionym: Lecidea sublapicida Knight 1876. Transact. Proceed. New Zeal. Inst. 8: 316.

Taxonomic Literature: Knoph J.-G., Biblioth. Lichenol. 36: 151-155 (1990).

Biogeography: Continent: Australasia.

Ecology: Biotroph; lichenized; substrate non-calciferous.

Thallus: Crustose, not subdivided parts, rimose or areolate (primarily areolate); separate thallus parts thin or thick (0.1-0.4 mm). Thallus Outline: Soon disappearing. Upper Surface: Verruculose (to irregularly wavy), pale grey or lemon (citrine) (to creamy white), matt.

Medulla: Iodine reaction in Lugol's solution negative.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Soon sessile, slightly constricted or strongly constricted at the base, .4-1.2 mm in diam.. Margin: Lecideine/biatorine, excluded, indistinct. Disk: Plane to weakly convex, black, epruinose. Exciple: Not carbonized; black (olivaceous) or dark green. Parathecium (proper excipulum): Dark brown (greenish) or brownish red, inspersed with crystals (sometimes). Amphithecium (thalline excipulum): Present. Epithecium: Apical cells slightly swollen, bright green, dark green, or olive (olivaceous, rarely, when damaged ?). Hymenium: White. Hypothecium: Brownish red.

Ascospores: c. 8 per ascus, ellipsoid, 9-14 µm long, 5-7.5 µm wide; septa absent; wall thick (not halonate), distinctly differentiated into primary and secondary wall (not halonate), not ornamented (not halonate).

Conidiomata: Immersed.

Pycnidia: Globular. Conidiophores: Vobis-type III. Conidia: Filiform; 20-30 µm long.

Secondary Metabolites: 2,5,7-trichloro-3-O-methylnorlichexanthone, arthothelin (2,4,5-trichloronorlichexanthone), atranorin, isoarthothelin (= 2,5,7-trichloronorlichexanthone), thuringione (= 2,4,5-trichloro-3-O-methylnorlichexanthone), or vicanicin, of the following substance class(es): xanthones.

Spot Tests: Upper surface: K – (negative), C – or + orange, PD –.

(report generated 04.Okt.2007)

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