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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-26). Data set reviewer(s): Schubert K. (06-03-27); revised.

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

Type Information: Basionym: Microsphaera schizandrae Sawada. Type: Microsphaera schizandrae Sawada.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells polygonal, ca.15-30 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [398-399] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): Far Eastern Asia. Country or state(s): Japan.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Schizandra nigra Maxim.; Schizandra, Schisandraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, (.085)-.1-.14-(.15) mm in diam.. Margin: External filaments present; recurved (distinctly), 1-1.5-(2) µm long, 8-12.5-(15) µm in diameter, hyaline or pigmented (sometimes at the base), numerous, 8-19 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, smooth or faintly rough, thin or thick (towards the base), ramified, dichotomously branched (4-6(-7) times closely and regularly, tips distinctly recurved), aseptate or septate (with 1(-2) septa at the base).

Asci: 3-9 asci per ascocarp, not stipitate or indistinctly stipitate, 40-75 µm long, (30)-40-50-(55) µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (4)-5-6-(8) per ascus, ellipsoid or ovoid, 18-30 µm long, 10-16 µm wide; septa absent.

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