Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.

Polycoccum tinantii Diederich

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (02-02-25). Data set reviewer(s): Triebel D.; revised; to be published after submission.

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

Taxonomic Literature: Diederich P., Mycotaxon 37:297-330 [316-318] (1990).

Biogeography: Northern hemispheric. Continent: Europe. Region(s): Middle Europe. Country or state(s): Benelux (Belgium & Luxembourg) (Luxembourg).

Ecology: Biotroph (growing as a commensal); lichenicolous (growing as a commensal); growing on bark. Host or Phorophyte Taxonomy: Caloplaca ferruginea.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, subglobose, forming inside the thallus or mycelium of the host, becoming adnate to soon sessile, .17-.28 mm in diam., with a black surface. Margin: Black, 24-33 µm wide. Exciple: Paraplectenchymatous; hyphae 4-8 µm wide; dark brown. Hymenium: Iodine reaction: Lugol’s positive. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 1-1.5 µm wide.

Asci: Clavate (elongate clavate); tholus not amyloid; dehiscence bitunicate; exoascus not hemiamyloid; ascoplasm not dextrinoid.

Ascospores: Not uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, 18-26 µm long, 7.5-11 µm wide, obtuse; septa present; transversally septate, 1-transversally septate; lumina of equal size; wall laterally constricted where the septum meets the spore wall, becoming pigmented, middle brown, in Lugol's Solution negative, wall ornamented.

(report generated 04.Okt.2007)

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.