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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-27). Data set reviewer(s): Schubert K. (06-03-23); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Microsphaera dipeltae Y. N. Yu & Y. Q. Lai; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera dipeltae Y. N. Yu & Y. Q. Lai. Type: Microsphaera dipeltae Y. N. Yu & Y. Q. Lai.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, 10-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [425-426] (1987).

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous (mostly) or amphigenous. Host or Phorophyte Taxonomy: Dipelta floribunda Maxim.; Dipelta, Caprifoliaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .062-.104 mm in diam.. Margin: External filaments present (52-94 µm long); recurved, .6-1.3 µm long, 6-9.5 µm in diameter, hyaline, few, 4-13 per mm², growing between the lower and upper hald of the ascocarp, smooth, thin, moderatly thick, or thick (towards the base, sometimes moderately thick-walled throughout), ramified, dichotomously branched ((3-)4-5(-6) times, primary branches sometimes elongated, tips recurved), aseptate or septate (0-1-septate).

Asci: 2-5 asci per ascocarp, not stipitate or indistinctly stipitate, 44-64 µm long, 29-49 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores (3)-4-6-(8) per ascus, ellipsoid or ovoid, 17.5-22.5 µm long, 8.8-12.5 µm wide; septa absent.

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