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

Polycoccum opulentum (Th. Fr. & Almq. ex Th. Fr.) Arnold

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (01-09-05). 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: Arnold F., Flora 57: 137-144 (1874); Hawksworth D.L. & Diederich P., Trans. Brit. Mycol. Soc. 90: 293-312 [303] (1988); Renobales G., Guineana 2: 1-310 [151-152] (1996).

Biogeography: Northern hemispheric. Continent: Europe. Region(s): Northern Europe and South-western Europe. Country or state(s): Sweden and Spain (incl. Andorra & Monaco).

Ecology: Biotroph; lichenicolous. Host or Phorophyte Taxonomy: Polyblastia intercedens; Lecidea plana.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, globose or subglobose, forming inside the thallus or mycelium of the host, becoming adnate, 100-150 µm wide, with a black surface. Exciple: Hyphae intricately interwoven, with no predominant orientation (paraplectenchymatic). Hymenium: Gelatinized, iodine reaction: Lugol’s positive, hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 3 µm wide.

Asci: Broadly clavate, 75-100 µm long, 25-35 µm wide; dehiscence bitunicate; exoascus not amyloid.

Ascospores: c. 8 per ascus, spores 8 per ascus, ellipsoid, 25-28 µm long, 10-14 µm wide, obtuse; septa present; transversally septate, 1-transversally septate; lumina apically enlarged, constricted at the centre; wall becoming pigmented, dark brown, ornamented, distinctly halonate, i.e., with a thick mucilaginous sheath.

(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.