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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Aptroot A. (95-02-10) and Lücking R. (95-08-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Raciborskiella. Strigulaceae Zahlbr. (1898); Pyrenulales.

Type Information: Type: Raciborskiella janeirensis (Müll. Arg.) R. Sant. (= Clypeolum talaumae Racib.).

Taxonomic Literature: Barr M.E., Mycotaxon 64: 149-171 (1997); Farr M.L., Mycologia 71: 243-271 [264-266] (1979) - sub Eudimeriolum volkartianum; Hawksworth D.L., Trans. Brit. Mycol. Soc. 74: 363-386 (1980) - sub Wentiomyces peltigericola; Kondratyuk S.Y., Muelleria 9: 93-104 [96, 101] (1996) - sub Wentiomyces tatjanae; Nüesch J., Phytopathol. Z. 39: 329-360 [354-357] (1960) - sub Epipolaeum longisetosum; Siemaszko W., Acta Soc. Bot. Poloniae 2: 269-274 (1925).

Lichen Photobionts: Primary photobiont present; trentepohlioid. Secondary photobiont absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, forming all across the thallus surface, becoming adnate to soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Black or brown. Periphyses: Absent. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White.

Ascospores: c. 8 per ascus, fusiform, 12-72 µm long, 4-7.5 µm wide, obtuse; septa present; transversally septate, 1-3-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; formed all accross the thallus surface.

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