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): Triebel D. Data set reviewer(s): Triebel D. (98-01-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 40. Sphaerulina. Mycosphaerellaceae Lindau (1897); Dothideales.

Taxonomic Literature: Barr M.E., Contr. Univ. Michigan Herb. 9: 523-638 [605-608] (1972); Bose S.K. & Müller E., Indian Phytopathol. 20: 124-138 (1967); Hawksworth D.L., Lichenologist 15: 1-44 [15, 39] (1983); Keissler K. von, Rabenh. Kryptog.-Fl. 8: 1-712 [435-439] (1930); Kohlmeyer J. & Kohlmeyer E., Marine mycology. The higher fungy. Academic Press. New York: 1-690 [455-457] (1979); Nylander W., Flora 48: 353-358 (1865) - sub Verrucaria dubiella; Sivanesan A., The bitunicate ascomycetes and their anamorphs: 1-701 [270-274] (1984); Vouaux L., Bull. Trimestriel Soc. Mycol. France 29: 33-128 [35-38] (1913).

Biogeography: Checklist records: Great Britain, Sweden and Norway, and United States and Canada (continental).

Ecology: Biotroph or saprobic; lichenicolous or phytopathogenic; terricolous, bryophytic, lignicolous, or epiphyllous; substrate non-calciferous or calciferous.

Medulla: Iodine reaction not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, not emerging, becoming adnate to soon sessile, stromatic. Margin: External filaments absent or present. Exciple: Black, brown, white, or brownish yellow. Periphyses: Present. Hymenium: Iodine reaction: hemiamyloid. Interascal Hyphae: Absent or present, scarcely branched, not or scarcely anastomosed. Hypothecium: Black, brown, white, or brownish yellow.

Asci: Tholus thickened, not amyloid; dehiscence bitunicate; exoascus not hemiamyloid.

Ascospores: c. 4 to c. 8 per ascus, ellipsoid, oblong, curved, cylindrical, filiform, fusiform, oblong-obtuse, or ovoid, 12-18 µm long, 1.5-8 µm wide, obtuse or aciculate; septa absent or present; transversally septate, 1-7-transversally septate; wall thin, not thickened at the septum, hyaline or pale brown, in Lugol's Solution negative, wall not ornamented.

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