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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: 1. Orceolina. Agyriaceae Corda (1838); Agyriineae; Lecanorales.

Taxonomic Literature: Hertel H., Ber. Deutsch. Bot. Ges., ser. 2, 4: 171-185 (1970); Lumbsch H.T., J. Hattori Bot. Lab. 83: 1-73 (1997); Lumbsch H.T., Kashiwadani H. & Streimann H., Pl. Syst. Evol. 185: 285-292 (1993); Tuckerman E., Bull. Torrey Bot. Club 6: 57-59 (1875) - sub Urceolina.

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

Thallus: Crustose, granular, placodioid, rimose, or areolate (primarily areolate). Upper Surface: Brownish yellow; 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: External filaments absent. Periphyses: Absent. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed.

Asci: Tholus not thickened or thickened, not amyloid; dehiscence lecanoralean or unitunicate; exoascus not amyloid or euamyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, 21-40 µm long, 15-20 µm wide, obtuse; septa absent; wall not thickened at the septum, hyaline, in Lugol's Solution negative.

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

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