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Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (01-08-29). 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: Hawksworth D.L., Kew Bull. 30: 183-203 [198] (1975); Hawksworth D.L. & Diederich P., Trans. Brit. Mycol. Soc. 90: 293-312 [301] (1988); Kocourková J., Acta Mus. Nat. Pragae, Ser. B., Hist. Nat. 55 (3-4): 59-169 [111-113] (2000) - sub Polycoccum pulvinatum; Vezda A., Ceská Mykol. 29: 104-109 [107-108] (1969).

Biogeography: Northern hemispheric. Continent: Europe. Region(s): Middle Europe and East Europe. Country or state(s): United Kingdom and former Czechoslovakia (incl. Czech Republic & Slovacia).

Ecology: Biotroph; lichenicolous. Host or Phorophyte Taxonomy: Physcia caesia, P. dubia, P. wainioi.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, forming inside the thallus or mycelium of the host (arising in bullate galls), not emerging, 150-200 µm wide, 150-300 µm high. Periphyses: Absent. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 1.5-2.5 µm wide.

Asci: Clavate (elongate) or broadly cylindrical, 75-100 µm long, 10-16 µm wide.

Ascospores: Irregularly uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, 14-18-(21) µm long, 7-9 µm wide; septa present; transversally septate, 1-transversally septate; wall becoming pigmented, middle brown, ornamented (verruculose).

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