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Polycoccum infestans (Speg.) Etayo

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (02-02-13). 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: Etayo J., Bull. Soc. Linn. Provence 47:93-110 [105-106] (1996).

Biogeography: Continent: Africa and Southern America. Region(s): Northern Africa and Southern South America (dry and subtropical). Country or state(s): Canary Islands (Spain); Southern Argentina (Argentina) (Buenos Aires).

Ecology: Biotroph; lichenicolous; endosubstratic. Host or Phorophyte Taxonomy: Ramalina sp., Teloschistes chrysophtalmus, T. flavicans.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, forming inside the thallus or mycelium of the host, within the ascocarp disks of the host, not emerging, becoming adnate, abundant, .25-.35 mm in diam.. Margin: 10 µm wide. Exciple: Hyphae 2-4 µm wide, 6-13 µm long. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 1-1.5 µm wide.

Asci: Cylindrical, 68-95 µm long, 7-8 µm wide; dehiscence bitunicate.

Ascospores: Uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, 10-13 µm long, 4.5-6 µm wide, aciculate; septa present; transversally septate, 1-transversally septate; lumina apically enlarged, constricted at the centre; wall becoming pigmented, dark brown, ornamented.

(report generated 04.Okt.2007)

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