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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-03-20).

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

Type Information: Basionym: Microsphaera coriariae Y. Nomura. Type: Microsphaera coriariae Y. Nomura.

Taxonomic Literature: Taxonomic notes: + cleistothecia: cellulae peridii irregulariter angulatae, 20-30 × 15-25 µm. Nomura Y., Taxonomical study of Erysiphaceae of Japan. - 1-281 [118-120]. Tokyo (1997).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Coriaria japonica A. Gray; Coriaria, Coriariaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid (atro-brunnea), orbicular (globosa vel spheroidea), .075-.1 mm in diam.. Margin: External filaments present; recurved, 200-400 µm long, 5.5-8 µm in diameter, hyaline or pigmented (versus basim), few or numerous, 6-16 per mm², growing between the lower and upper hald of the ascocarp, geniculate (bent) (granditer vel leviter curvatae, interdum geniculatae), thin (versus apicem) or thick, ramified, dichotomously branched ((3-)4-5 ramosae), aseptate (0-1-septatae) or septate.

Asci: 4-6 asci per ascocarp, globose (ellipsoidei vel late ellipsoidei), indistinctly stipitate, 50-65 µm long, 30-40 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 7-8 per ascus, ellipsoid (vel longi-ellipsoideae), 15-20 µm long, 7-12 µm wide; septa absent.

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