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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. & Triebel D. (94-11-15). Data set reviewer(s): Kainz C. (00-12-22); to be published after submission; 94-11-15.

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

Taxonomic Literature: Triebel D. & Rambold G. 1988. Cecidonia und Phacopsis (Lecanorales): zwei lichenicole Pilzgattungen mit cecidogenen Arten. Nova Hedwigia 47: 279-309.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Soon sessile, not constricted at the base, 2-2.5 mm in diam.. Margin: Indistinct. Disk: Weakly convex, black. Epithecium: Apical cells distinctly swollen (terminal cells sometimes hooked); brown ((olive-)). Hymenium: Brown ((olive-)) or white. Hypothecium: Dark brown. Hypothecial Extension: Absent.

Ascospores: c. 8 per ascus, oval, 13-17-(19) µm long, 3-4 µm wide, obtuse; septa absent; wall thick, distinctly differentiated into primary and secondary wall, not ornamented.

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