Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.

The description has been generated directly from a database. In cases of errors and insufficiencies consult the corresponding LIAS data entry and revision forms to make the necessary modifications. Changes will appear in the subsequent update of data entry forms and natural language descriptions. [To verify the actual status of the pages, select the reload frame function in the context menu!]
These pages are XHTML compatible designed. May be that problems arise with older web browser versions.

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Aptroot A. (95-02-18); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: genus. Sclerographa. Genus of unknown placement (incertae sedis); Arthoniales.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [707] (1985); Poelt J., Bestimmungsschlüssel Europäischer Flechten: 1-757 [608] (1969); Vainio E., Acta Soc. Fauna Fl. Fenn. 7(2): 1-256 [136-137] (1890) - sub Opegrapha quinqueseptata.

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

Thallus: Indistinct or crustose, not subdivided parts, granular. Upper Surface: Grey or olive; 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: Apothecioid, linear, forming all across the thallus surface, becoming adnate to soon sessile. Margin: Prominent; external filaments absent. Exciple: Black, brown, or brownish yellow. Interascal Hyphae: Present, distinctly branched, not or scarcely anastomosed. Hypothecium: Black, brown, or brownish yellow.

Ascospores: c. 8 per ascus, oblong-obtuse or ovoid, 15-40 µm long, 4.5-8 µm wide; septa present; transversally septate, 5-16-transversally septate; wall not thickened at the septum, dark brown, middle brown, grey, or hyaline, in Lugol's Solution negative.

In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.

LIAS Home