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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (02-06-27). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Phacopsis. Parmeliaceae Zenker (1827); Lecanorales.

Taxonomic Literature: Aptroot A. & Triebel D., Nova Hedwigia 74(3-4): 405-409 (2002).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, becoming adnate to soon sessile, .2-.4 mm in diam.. Margin: Distinct. Disk: Plane to slightly weakly convex, black or dark brown, epruinose. Exciple: Dark brown (paler inside). Epithecium: Apical cells distinctly swollen; dark brown, brown, or olive. Hymenium: 40-60 µm high; white. Interascal Hyphae: Scarcely branched, not or scarcely anastomosed. Hypothecium: Pale brown or white.

Ascospores: Ellipsoid (to fusiform; often one end attenuated, sometimes slightly curved), (10.5)-12-15-(18) µm long, (4.5)-5.5-7-(7.5) µm wide; septa absent.

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