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Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (01.08.17). 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. & Diederich P., Trans. Brit. Mycol. Soc. 90: 293-
312 [297] (1988); Vezda A. Ceska Mykol. 23:104-109 (1969).

Biogeography: Northern hemispheric, montane. Continent: Europe. Region(s): Middle Europe and South-eastern Europe. Country or state(s): Austria, former Czechoslovakia (incl. Czech Republic & Slovacia), and Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia).

Ecology: Biotroph; lichenicolous. Host or Phorophyte Taxonomy: Caloplaca stillicidiorum; Pertusaria bryontha.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, within the ascocarp margin of the host or within the ascocarp disks of the host, 70-100 µm wide. Wall: Complete. Margin: External filaments absent. Exciple: Paraplectenchymatous. Periphyses: Absent. Interascal Hyphae: Distinctly branched, distinctly anastomosed; cells 1.5-2.5 µm wide.

Ascospores: More or less uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, (10)-11-13-(15) µm long, (4)-4.5-6 µm wide, obtuse; septa present; transversally septate, 1-(2)-transversally septate; lumina slightly apically enlarged, constricted at the centre; wall laterally constricted where the septum meets the spore wall, becoming pigmented, middle brown (olivaceous brown), ornamented (slightly verruculose).

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