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Polycoccum montis-wilhelmii Diederich

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (02-03-26). 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: Aptroot A., Diederich P., Sérusiaux E. & Sipman H.J.M.,
Biblioth. Lichenol. 64: 1-200 [141] (1997).

Biogeography: Alpine. Continent: Asia-Tropical. Region(s): South-Central Pacific Islands. Country or state(s): New Guinea (Papua New Guinea).

Ecology: Biotroph; lichenicolous; endosubstratic. Host or Phorophyte Taxonomy: Hypotrachyna sinuosa.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, subglobose or obpyriform, forming inside the thallus or mycelium of the host, not emerging, 100-130 µm wide, with a dark brown surface. Margin: Dark brown, 10-16 µm wide. Exciple: Dark brown. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 1-1.5 µm wide. Hypothecium: Dark brown.

Asci: Clavate, 47-60 µm long, 12-15 µm wide; dehiscence bitunicate; exoascus not amyloid; ascoplasm dextrinoid (I+ red).

Ascospores: c. 8 per ascus, spores 8 per ascus, ellipsoid, 14.5-16 µm long, 6.5-7 µm wide; septa present; transversally septate, 1-transversally septate; lumina of equal size; wall becoming pigmented, dark brown, ornamented (verruculose) or not ornamented.

(report generated 04.Okt.2007)


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