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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set revised @EXCL@ not revised (02-03-07).

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Erysiphaceae Tul. & C. Tul.; Erysiphales.

Biogeography: Continent: Asia-Temperate. Region(s): Far Eastern Asia (Amurskaja obl.).

Ecology: Biotroph; phytopathogenic; growing on leaves (mycelium thin). Host or Phorophyte Taxonomy: Cornaceae.

Reproduction Strategy: With sexual (and possible asexual) stages (few). Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, .073-.102 mm in diam.. Margin: External filaments present; 1.5-2 µm long, hyaline (upwards, yellowish in the lower half) or pigmented, 8-12 per mm², growing between the lower and upper hald of the ascocarp, not ramified, dichotomously branched.

Asci: 1 asci per ascocarp, sub-globose or broadly clavate, indistinctly stipitate, 53-102 µm long, 46-76 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-8 per ascus, ellipsoid, 20-26 µm long, 12-13 µm wide; septa absent; wall thin, remaining hyaline, hyaline, not ornamented.

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