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 compiled. Data set author(s): Cáceres M. Data set not revised; not to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Stigmidium. Genus incertae sedis: Stigmidium; of unknown placement (incertae sedis).

Taxonomic Literature: Roux C. & Triebel D., Bull. Soc. Linn. Provence 45: 451-542 [509-510] (1994).

Biogeography: Northern hemispheric. Continent: Europe. Country or state(s): Finland, United Kingdom, Sweden, Benelux (Belgium & Luxembourg) (Luxemburg), and Spain (incl. Andorra & Monaco); Greenland.

Ecology: Biotroph; lichenicolous, endosubstratic; growing on calciferous rock. Host or Phorophyte Taxonomy: Solorina saccata.

Thallus: Indistinct. Upper Surface: Brown (vegetative hyphae pale to light brown).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, globose, forming inside the thallus or mycelium of the host, becoming adnate, abundant, 55-75 µm wide, 55-75 µm high, with a black surface. Margin: Black, 5-13 µm wide. Exciple: Hyphae 1-3.5 µm wide, 3-9 µm long, dark brown. Periphyses: Present. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed; cells 1.5-2.5 µm wide. Hypothecium: White or pale brown.

Asci: Clavate or cylindrical (broadly subcylindrical), not stipitate, 22-35 µm long, 9-13 µm wide; tholus not amyloid; dehiscence bitunicate; ascoplasm not dextrinoid.

Ascospores: Not uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, oblong-obtuse, or clavate (subclavate), (10)-10.5-12.1-13.5-(14) µm long, 3-3.6-4-(4.5) µm wide, obtuse; septa present, transversally septate (pseudotetraseptate), 1-transversally septate; lumina of equal size or apically enlarged, constricted at the centre; wall thin, not constricted where the septum meets the spore wall, becoming pigmented, hyaline, not ornamented or ornamented (mature ascospores), distinctly halonate, i.e., with a thick mucilaginous sheath.

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