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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 Data set author(s): Cáceres M. Data set not revised; not to be published after submission.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: Roux C. & Triebel D., Bull. Soc. Linn. Provence 45: 451-542 [480-481] (1994); Roux C., Treibel D., Bricaud O. & Le Coeur D., Can. J. Bot. 73: 662-672 (1995).

Biogeography: Northern hemispheric, Mediterranean, coastal, colline, and submontane. Continent: Europe. Region(s): Middle Europe, South-western Europe, and South-eastern Europe. Country or state(s): Austria, France (excl. Corsica), Sardinia (Italy), Spain (incl. Andorra & Monaco), and Greece.

Ecology: Biotroph; lichenicolous, endosubstratic. Host or Phorophyte Taxonomy: Lecidella elaeochroma.

Thallus: Indistinct. Upper Surface: Brown (vegetative hyphae hyalin to partially brown near ascomata).

Medulla: Iodine reaction in Lugol's solution positive (strongly BCr+ blue violet intense).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, subglobose (subglobose to oblong), within the ascocarp margin of the host or within the ascocarp disks of the host, not emerging, 42-75 µm wide, 61-90 µm high, with a black surface. Margin: Smooth, black, 5-11 µm wide. Disk: Smooth. Exciple: Hyphae 1-3 µm wide, (2)-5-12 µm long, brown. Periphyses: Present. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed; cells 1-2.5 µm wide. Hypothecium: Brown.

Asci: Clavate or cylindrical (subcylindrical), not stipitate, 22-36 µm long, 8-13 µm wide; ocular chamber present; dehiscence bitunicate (fissitunicate); ascoplasm dextrinoid (endoascus BCr+ pale violet).

Ascospores: Not uniseriate, c. 8 per ascus, spores 8 per ascus, oblong-obtuse or oval, (11)-12-13.8-15-(16) µm long, 3-3.3-4 µm wide, obtuse; septa present, transversally septate, 1-transversally septate; lumina of equal size; wall thin, not constricted where the septum meets the spore wall, remaining hyaline, hyaline, in Lugol's Solution positive (epispore BCr+ pale violet), wall not ornamented.

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