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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 or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 8. Cryptolechia. Gyalectaceae (A. Massal.) Sitzenb. (1862); Gyalectales.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest N.S. - Numero Special 7: 1-893 [347] (1985); Galloway D.J., Flora of New Zealand lichens: i-lxxiii, 1-662 [147-148], Wellington (1985); Gilbert O.L. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992); Hawksworth D.L. & Dibben M.J., Lichenologist 14: 98-100 (1982).

Biogeography: Checklist records: Great Britain, Italy, New Zealand, United States and Canada (continental), and New Guinea.

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

Thallus: Crustose, not subdivided parts, rimose. 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, not emerging, becoming adnate to soon sessile. Margin: Indistinct to distinct; external filaments absent. Exciple: White. Periphyses: Absent. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed.

Ascospores: c. 8 to 12-16 per ascus, oblong-obtuse, 10-23 µm long, 3-5 µm wide, obtuse; septa present; transversally septate, 3-4-transversally septate; 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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