Botanische Staatssammlung München © 1995–2008
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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Poelt J. (95-03-14) and Kasalicky T. (98-02-21); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 1. Apatoplaca. Teloschistaceae Zahlbr. (1898); Teloschistineae; Lecanorales.

Taxonomic Literature: Kärnefelt I., Cryptog. Bot. 147-203 (1989); Hertel H., Herzogia 3: 365-406 (1975) - sub §§§; Kilias H., Herzogia 7: 181-190 (1985) - sub "Caloplaca" [oblongula]; Magnusson A.H., Acta Hort. Gotoburg. 19(2): 31-49 (1952) - sub Lecidea [oblongula]; Poelt J. & Hafellner J., Mitt. Bot. Staatssamml. München 16: 503-528 (1980).

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

Thallus: Crustose, rimose or areolate (primarily areolate). Upper Surface: Grey 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: Apothecioid, orbicular, forming all across the thallus surface, soon sessile. Margin: Prominent; external filaments absent. Exciple: White or orange. Periphyses: Absent. Epithecium: Apical cells black. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, amyloid, entirely amyloid throughout; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, ellipsoid or oblong, 14-24 µm long, 4-8 µm wide, obtuse; septa absent or present; transversally septate, 1-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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