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. @EXCL@ Calatayud V. (02-12-18). Data set not revised; not to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Pyrenidium. Dacampiaceae Körb. (1855); Dothideales.

Biogeography: Neotropical. Continent: Southern America. Country or state(s): West-central Brazil (Brazil).

Ecology: Biotroph; lichenicolous; endosubstratic; growing on living leaves. Host or Phorophyte Taxonomy: Sporopodium cf. leprieurii var. citrinum.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, obpyriform or ovoid, forming inside the thallus or mycelium of the host (on gall-like malformations of the host thatllus), not emerging, becoming adnate, 100-120 µm wide, 110-150 µm high, with a black or dark brown surface. Wall: Not carbonized. Margin: Brown or dark brown, 4-16 µm wide; external filaments absent. Exciple: Not carbonized; brown or dark brown. Periphyses: Present. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, distinctly branched, not or scarcely anastomosed; cells 2-3 µm wide. Hypothecium: Brown.

Asci: Cylindrical, distinctly stipitate, 45-65 µm long, 9-11 µm wide; tholus not amyloid; ocular chamber absent; indistinct; dehiscence bitunicate (fissitunicate); exoascus not amyloid, not hemiamyloid; ascoplasm dextrinoid (endoascus CR+ orange).

Ascospores: Uniseriate (overlapping-uniseriate), c. 4 per ascus, spores 4 per ascus, ellipsoid, (12)-13-15.5-18 µm long, 5-5.6-(6) µm wide, obtuse; septa present; transversally septate, (2)-3-transversally septate; lumina of equal size or apically enlarged, constricted at the centre; wall thin, laterally constricted where the septum meets the spore wall, becoming pigmented, middle 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