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Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. Data set not revised; not to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Stigmidium. Genus incertae sedis: Stigmidium; of unknown placement (incertae sedis).

Taxonomic Literature: Calatayud V. & Triebel D., Nova Hedwigia 69(3-4): 439-448 (1999).

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

Ecology: Biotroph; lichenicolous; growing on non-calciferous rock or calciferous rock. Host or Phorophyte Taxonomy: Neofuscelia pulla, N. verruculifera.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, globose, forming inside the thallus or mycelium of the host, not emerging, (65)-70-85-(100) µm wide, with a black surface. Margin: (12)-15-17-(20) µm wide. Exciple: Paraplectenchymatous (textura angularis); hyphae 6-10 µm wide, black. Periphyses: Present (scarce). Hymenium: Gelatinized, iodine reaction: Lugol’s positive (I+ violet), not hemiamyloid. Interascal Hyphae: Absent. Hypothecium: Black.

Asci: Clavate (saccate or occasionally more or less ovoid), not stipitate, 30-42 µm long, 15-20 µm wide; tholus not amyloid; dehiscence bitunicate (fissitunicate); exoascus not amyloid, not hemiamyloid; ascoplasm not dextrinoid.

Ascospores: c. 8 per ascus, spores 8 per ascus, ellipsoid, 12-15-(15.5) µm long, 5-6-(7) µm wide, obtuse; septa present, transversally septate, 1-transversally septate; lumina apically enlarged, constricted at the centre; wall thin or thick (halonate), distinctly differentiated into primary and secondary wall (halonate), laterally constricted where the septum meets the spore wall (slightly constricted at the septum), becoming pigmented, hyaline or pale brown, in Lugol's Solution negative, wall not ornamented, distinctly halonate, i.e., with a thick mucilaginous sheath.

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