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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); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Rhaphidicyrtis. Genus of unknown placement (incertae sedis); Pyrenulales.

Taxonomic Literature: Aguirre-Hudson B., Bull. Br. Mus. Nat. Hist., Bot. 21: 85-192 (1991); Hawksworth D.L. & Aguirre-Hudson B. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992).

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

Thallus: Indistinct or crustose, not subdivided parts, granular. Upper Surface: Grey, brownish yellow, or white; special structures absent. Lower Surface: Attached by the whole lower surface; special structures 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, not emerging, becoming adnate. Margin: External filaments absent. Exciple: Black or brown. Periphyses: Present. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed.

Ascospores: c. 8 per ascus, filiform or fusiform, 60-95 µm long, 2-3 µm wide, aciculate; septa present; transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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