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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Kirschbaum U. (99-11-10) and Poelt J. (95-03-14); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 30. Teloschistes. Teloschistaceae Zahlbr. (1898); Teloschistineae; Lecanorales.

Taxonomic Literature: Almborn O., Nordic. J. Bot. 8: 521-537 (1989); Aptroot A., Diederich
P., Sérusiaux E. & Sipman H.J.M., Biblioth. Lichenol. 64:
1-220 [196] (1997); Clauzade G. & Roux C., Bull. Soc. Bot. Centre-
Ouest N.S. - Numero Special 7: 1-893 [732] (1985); Filson R.,
Muelleria 2: 65-115 (1969); Galloway D.J., Flora of New Zealand
Lichens: i-lxxiii, 1-662 [565-568], Wellington (1985); Gilbert G.L.
& Purvis O.W., Lichenologist 28: 493-506 (1996); Kärnefelt
I., Cryptog. Bot. 147-203 (1989); Purvis O.W. in: Purvis O.W. et al.
(eds), The Lichen Flora of Great Britain and Ireland, London (1992).

Biogeography: Checklist records: Austria, Bolivia, Germany, Great Britain, Guianas, Italy, New Guinea, New Zealand, Sonoran Desert, Thailand, United States and Canada (continental), Namibia, and Republic of South Africa.

Ecology: Biotroph; lichenized; terricolous or corticolous; substrate non-calciferous.

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

Thallus: Crustose or fruticose, not subdivided parts, subfruticose. Upper Surface: Grey, yellow, or orange; special structures absent or present:; not pseudocyphellate; eciliate or ciliate; without hairs or hairy; not isidate; not sorediate or sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by holdfasts; 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 or directly at the thallus margin, directly at the tip of the thallus parts, soon sessile to substipitate. Margin: Prominent; external filaments absent. Exciple: White. Periphyses: Absent. Epithecium: Apical cells orange. 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, broadly ellipsoid or ellipsoid, 10-18 µm long, 5-11 µm wide, obtuse; septa absent; wall thin, thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Secondary Metabolites: Present, of the following substance class(es): (anthra-)quinones.

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