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): Randlane T. (98-05-28); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 5. Cetreliopsis. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Taxonomic Literature: Lai, M.-J., Quat. J. Taiwan Museum 33: 215-229 (1980); Elix J.A., Bryologist 96: 359-383 (1993); Randlane T., Thell A. & Saag A., Cryptog. Bryol. Lichénol. 16: 35-60 (1995).

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

Thallus: Foliose, not subdivided parts, lobed. Thallus Outline: Soon disappearing. Upper Surface: Green or yellow; special structures present:; pseudocyphellate; eciliate or ciliate; without hairs; not isidate; not sorediate or sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by holdfasts; special structures present:; pseudocyphellate; not cyphellate; 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: Apothecioid, orbicular, forming directly at the thallus margin, soon sessile. Margin: Prominent; external filaments absent. Exciple: Grey or white. Periphyses: Absent. Epithecium: Apical cells brown or brownish yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, amyloid, with non-amyloid wide axial body and divergent amyloid flanks towards apex; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, ellipsoid, 6-12 µm long, 3-7 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; sessile to stipitate, formed all accross the thallus surface or along the thallus periphery.

Secondary Metabolites: Present, of the following substance class(es): ß-orcinol depsidones, (higher) aliphatic acids, and dibenzofurans [and usnic acids].

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