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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set not revised; to be published after submission.

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

Type Information: Type: Cephalophysis leucospila (Anzi) H. Kilias & Gotth. Scheid.

Taxonomic Literature: Hertel H., Beih. Nova Hedwigia 24: 1-155 (1967); Kärnefelt I., Cryptog. Bot. 147-203 (1989); Kilias H., Herzogia 7: 182 (1985).

Biogeography: Checklist records: Austria, Germany, Italy, Sweden and Norway, and United States and Canada (continental).

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

Thallus: Indistinct or crustose, not subdivided parts, rimose. Upper Surface: 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, not emerging. Margin: Prominent; external filaments absent. Exciple: Brownish yellow. Periphyses: Absent. Epithecium: Apical cells green. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Black or brown.

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

Ascospores: c. 8 per ascus, ellipsoid, 6-11 µm long, 4-6.5 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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

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