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Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Triebel D. (98-01-01; 00-11-1; 01-08-07); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 3. Verrucariaceae Zenker (1827); Verrucariales.

Taxonomic Literature: Calatayud V. & Navarro-Rosinés P., Nova Hedwigia 72: 473-478 (2001); Hafellner J. & Berger F., Herzogia 14: 31-34 (2000); Navarro-
Rosinés P. & Roux C., Mycotaxon 61: 441-454 (1997).

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, soon sessile. Wall: Not carbonized, not fused. Margin: Prominent; external filaments absent. Exciple: Brown. Periphyses: Present. Hymenium: Iodine reaction: Lugol’s negative, hemiamyloid. Interascal Hyphae: Absent. Hypothecium: Brown.

Asci: Tholus thickened, not amyloid; ocular chamber indistinct (no c.o.); dehiscence verrucarial.

Ascospores: More than 32 per ascus, cylindrical, oblong-obtuse, oblong, or curved, 5.5-11 µm long, 1.5-3.1 µm wide, obtuse; septa present; transversally septate, 1-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, hyaline or pale brown, in Lugol's Solution negative, wall not ornamented.

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