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Ramboldia stuartii (Hampe) Kantvilas & Elix

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (03-01-27). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Ramboldia. Synonyms: Lecidea lampra Stirton; Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Type Information: Basionym: Lecidea stuartii Hampe (1852).

Taxonomic Literature: Kantvilas G., Elix J.A., Bryologist 97(3): 296-304 (1994).

Biogeography: Continent: Australasia.

Ecology: Biotroph; lichenized; lignicolous; growing under conditions which are dry.

Thallus: Indistinct (endophloedal); separate thallus parts thin.

Reproduction Strategy: With sexual (and possible asexual) stages or only known as sterile, asexually reproducing form (diam. to 1.5 mm). Ascocarps: Apothecioid, orbicular or irregular (deformed by mutual pressure), forming independently from the host thallus or mycelium, soon sessile, .2-.4 mm in diam.. Margin: Slightly flexuose, persistent or excluded (in the very oldest apothecia), indistinct. Disk: Plane to weakly convex (in very old apothecia), black. Exciple: Brown, olive, or brownish yellow. Epithecium: Apical cells not swollen, brown, olive, or brownish red (dark orange-brown to olive-brown, becoming pale dingy greyish-brown in KOH). Hymenium: 32-50 µm high; brown, pale green, or pale brown (pale orange-brown to olive-brown, sometimes darkly discoloured in older specimens). Interascal Hyphae: Scarcely branched, not or scarcely anastomosed. Hypothecium: 60-80 µm high; brown, white, orange, or brownish yellow.

Asci: 25-40 µm long, 9-12 µm wide.

Ascospores: c. 8 per ascus, oval (usually with 1-3 plasma bridges), 7.5-12 µm long, (2)-2.5-5 µm wide.

Secondary Metabolites: Present (hypothamnolic acid).

(report generated 04.Okt.2007)

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