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Data Set Maintenance: Data set standard item. Data set author(s): Döbbeler P. Data set to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 10. Pleosporaceae Nitschke (1869); Dothideales.

Type Information: Type: Kirschsteiniothelia aethiops (Berk. & Curtis) D. Hawksw.

Taxonomic Literature: Taxonomic notes: Anamorph: Dendryphiopsis S. Hughes. Aptroot A. in: Nash T.H. III et al. (eds) Lichen Flora of the Greater
Sonoran Desert Region vol. 1, 257-258, Tempe (2002); Barr M. E.,
Mycotaxon 49: 129-142 (1993); Hawksworth D. L., Bot. J. Linn. Soc.
91: 181-202 (1985); Shearer C. A., Mycologia 85(6): 963-969 (1993).

Biogeography: Checklist records: Austria, Germany, Great Britain, New Zealand, Sonoran Desert, Sweden and Norway, and United States and Canada (continental).

Thallus: Indistinct. Upper Surface: Special structures absent. Lower Surface: Special structures absent.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, not emerging, becoming adnate to soon sessile. Wall: With a carbonized black clypeus around the ostiole (clypeus prominent), not fused. Margin: Distinct to prominent; external filaments absent. Exciple: Black or brown. Periphyses: Absent. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Absent, distinctly branched, distinctly anastomosed. Hypothecium: Brown.

Asci: Tholus thickened, not amyloid; ocular chamber broad; dehiscence bitunicate.

Ascospores: c. 4 to c. 8 per ascus, ellipsoid, clavate, or oblong, 12.5-55 µm long, 5.5-20 µm wide, obtuse; septa present; transversally septate, 1-transversally septate, formed by the proper spore wall; wall thick (smooth halonate), distinctly differentiated into primary and secondary wall (smooth halonate), not constricted where the septum meets the spore wall or laterally constricted where the septum meets the spore wall, middle brown or pale brown, not ornamented (smooth halonate) or ornamented.

Secondary Metabolites: Not detected or present, of the following substance class(es): (anthra-)quinones.

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