Gorgadesia Tav. (1964)
Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Tehler A. (95-11-27); revised; to be published after submission.
Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Gorgadesia. Roccellaceae Chevall. (1826); Arthoniales.
Type Information: Type: Gorgadesia mira Tav.
Taxonomic Literature: Tehler A., Can. J. Bot. 68: 2458-2492 (1990).
Ecology: Biotroph; lichenized; substrate non-calciferous.
Lichen Photobionts: Primary photobiont present; trentepohlioid. Secondary photobiont absent.
Thallus: Fruticose, not subdivided parts. Upper Surface: Brownish yellow or white; special structures absent. Lower Surface: Attached by holdfasts; special structures absent.
Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, linear or irregular, not emerging. Margin: Indistinct. Epithecium: Apical cells hyaline or brownish yellow. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White.
Ascospores: c. 8 per ascus, fusiform, 20-22 µm long, 4-5 µm wide, obtuse or aciculate; septa present; transversally septate, 3-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.
Conidiomata: Absent resp. not observed or present; pycnidial; immersed, formed all accross the thallus surface.
Conidia: Filiform.
Secondary Metabolites: Present, of the following substance class(es): ß-orcinol depsidones.
(report generated 04.Okt.2007)
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