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

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 2 (estimation provided by A. Aptroot 99-09-27). Caleniopsis. Gomphillaceae W. Watson ex Hafellner (1984); Ostropales.

Taxonomic Literature: Santesson R., Symb. Bot. Upsal. 12: 1-590 [345-346] (1952) - sub Calenia l.; Vezda A. & Poelt J., Folia Geobot. Phytotax. 22: 179-198 (1987).

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

Thallus: Crustose, not subdivided parts. Thallus Outline: Persistent. Upper Surface: Green, grey, or white; special structures absent. Lower Surface: Attached by the whole lower surface; special structures present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: Prominent; external filaments absent. Exciple: White. Periphyses: Absent. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White.

Ascospores: c. 8 per ascus, fusiform or oblong-obtuse, 32-50 µm long, 6-10 µm wide, obtuse; septa present; transversally septate, 2-7-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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