Pyrenocarpon Trevis. (1855)
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: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Pyrenocarpon. Lichinaceae Nyl. (1854); Lichinales.
Type Information: Type: Pyrenocarpon flotowianum (Hepp) Trevis.
Taxonomic Literature: Trevisan V., Flora 38: 177-187 (1855).
Biogeography: Checklist records: Germany and Sweden and Norway.
Ecology: Biotroph; lichenized; substrate non-calciferous.
Lichen Photobionts: Primary photobiont present. Secondary photobiont absent.
Thallus: Crustose. Upper Surface: Special structures absent. Lower Surface: Attached by the whole lower surface; special structures absent.
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, not emerging, becoming adnate. Margin: External filaments absent. Exciple: Brownish yellow. Periphyses: Absent. Epithecium: Apical cells black. Interascal Hyphae: Present. Hypothecium: Brownish yellow.
Ascospores: c. 8 per ascus, ellipsoid or ovoid, obtuse; septa absent; wall not thickened at the septum, hyaline, in Lugol's Solution negative.
Conidiomata: Absent resp. not observed or present.
Secondary Metabolites: Not detected.
(report generated 04.Okt.2007)
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