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 not revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 14. Miriquidica. Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Taxonomic Literature: Coppins B.J. & Purvis O.W. in: Purvis O.W., Coppins B.J., Hawksworth D.L., James P.W. & Moore D.M. (eds), The lichen flora of Great Britain and Ireland: 1-710 [385-387] (1992); Hertel H. & Rambold G., Mitt. Bot. Staatssamml. München 23: 377-392 (1987); Rambold G., Biblioth. Lichenol. 34: 1-346 (1989); Rambold G. & Schwab A.J., Nord. J. Bot. 10: 117-121 (1990); Rambold G. & Triebel D., Biblioth. Lichenol. 48: 1-201 [113-114] (1992); Timdal E., Bryologist 96: 616-618 (1993).

Biogeography: Checklist records: Austria, Germany, Great Britain, Sonoran Desert, Italy, Sweden and Norway, and United States and Canada (continental).

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

Thallus: Crustose, not subdivided parts, squamulose, rimose, or areolate (primarily areolate). Thallus Outline: Soon disappearing or persistent. Upper Surface: Brown or grey to brownish yellow to white; special structures absent to present:; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate to sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia to with thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface to attached by holdfasts; special structures absent to present:; not pseudocyphellate; not cyphellate; not rhizinate to rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: Only known as sterile, asexually reproducing form to with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Brown to white to brownish yellow to violet. Periphyses: Absent. Epithecium: Apical cells brown to green to olive. Hymenium: Iodine reaction: Lugol’s negative to Lugol’s positive, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Brown to white to brownish yellow to violet.

Asci: Tholus thickened, amyloid, with non-amyloid wide axial body and divergent amyloid flanks towards apex; dehiscence lecanoralean; exoascus not amyloid to euamyloid, not hemiamyloid to hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, 7.5-17 µm long, 3.5-8 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 to present; pycnidial; immersed, formed all accross the thallus surface.

Secondary Metabolites: Present, of the following substance class(es): orcinol depsides to orcinol depsidones to ß-orcinol depsides to ß-orcinol depsidones.

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