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Ramboldia subnexa (Stirt.) 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. Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Type Information: Basionym: Lecidea subnexa Stirton (1876).

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

Biogeography: Continent: Australasia.

Ecology: Biotroph; lichenized; lignicolous; episubstratic.

Thallus: Not subdivided or subdivided into main parts, areolate (primarily areolate); lobes convex; separate thallus parts up to.25 mm wide; thin. Upper Surface: Pale brown.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular or irregular, forming independently from the host thallus or mycelium, soon sessile, 1.5-2 mm in diam.. Margin: Strongly flexuose, persistent or excluded, indistinct. Disk: Plane or weakly convex, black. Exciple: Brown (deep golden) or olive. Epithecium: Apical cells not swollen, brown (colourless or pale dingy brown in KOH; deep golden) or olive. Hymenium: 35-50 µm high; white or pale brown (pale yellow-brown, occasionally discoloured brown in old specimnens, colourless in KOH). Interascal Hyphae: Scarcely branched. Hypothecium: 50-70 µm high; white or pale brownish yellow.

Asci: 32-40 µm long, 12-16 µm wide.

Ascospores: c. 8 per ascus, oval (occasionally with plasma bridges), 7-11-(13) µm long, (2)-2.5-5 µm wide.

Secondary Metabolites: Present (thamnolic acid).

(report generated 04.Okt.2007)

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