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Data Set Maintenance: Data set standard item. Data set author(s): Scholz P. Data set reviewer(s): Scholz P. (06-08-01); not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: genus. Number of known taxa within this rank: 1. Pleomassariaceae M.E. Barr (1979) @EXCL@ genus of unknown placement (incertae sedis) (tentatively).

Taxonomic Literature: Calatayud, V., Sanz, M.J. & Aptroot, A., Mycol. Res. 105: 634-637 (2001).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, becoming adnate. Wall: Carbonized only in parts, not fused. Margin: Prominent; external filaments absent. Exciple: Black (to dark brown). Periphyses: Absent. Epithecium: Apical cells hyaline. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus not thickened, not amyloid; ocular chamber indistinct; dehiscence bitunicate (fissitunicate); exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, (14)-14.5-16.3-18-(19) µm long, (7)-8-8.5-9-(10) µm wide, obtuse; septa present; transversally septate, 1-transversally septate, formed by the proper spore wall; wall thickened at the septum (prominent swelling due to endospore formation at the septum and at the apices), not constricted where the septum meets the spore wall, pale brown, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Present; pycnidial; immersed, formed all accross the thallus surface (in galls together with perithecia).

Conidia: Ellipsoid or lageniform; microconidial; up to 0-septate; cell wall hyaline.

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