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Erythrodecton G. Thor (1991)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 2. Erythrodecton. Genus of unknown placement (incertae sedis); Arthoniales.

Type Information: Type: Erythrodecton granulatum (Mont.) G. Thor.

Taxonomic Literature: Henssen A. & Thor G., Nord. J. Bot. 18: 95-120 (1998); Thor G., Opera Bot. 103: 1-92 (1990).

Biogeography: Checklist records: Guianas.

Ecology: Biotroph; lichenized; corticolous.

Lichen Photobionts: Primary photobiont present; trentepohlioid. Secondary photobiont absent.

Thallus: Crustose, not subdivided parts, granular. Thallus Outline: Soon disappearing or persistent. Upper Surface: Green, grey, or olive; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate or sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, forming all across the thallus surface, stromatic. Margin: Indistinct. Exciple: Black, brown, white, or brownish yellow. Periphyses: Absent. Interascal Hyphae: Present, distinctly branched, not or scarcely anastomosed. Hypothecium: Black, brown, white, or brownish yellow.

Ascospores: c. 8 per ascus, 48-63 µm long, 3-4 µm wide, obtuse or aciculate; septa present; transversally septate, 4-6-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 or sessile, formed all accross the thallus surface.

Conidia: Bacilliform.

Secondary Metabolites: Present, of the following substance class(es): (higher) aliphatic acids and (anthra-)quinones.

(report generated 04.Okt.2007)


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