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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-08-02). Data set reviewer(s): Schubert K. (06-04-04); revised.

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

Type Information: Basionym: Phyllactinia aleuritidis Y. N. Yu & Y. Q. Lai. Type: Phyllactinia aleuritidis Y. N. Yu & Y. Q. Lai.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregularly polygonal;. Braun U., Beih. Nova Hedwigia 89: 1-700 [586] (1987).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Aleurites cordata R. Br.; Aleurites, Euphorbiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .145-.147-.177 mm in diam.. Margin: External filaments present; straight, 1-1.5 µm long, few, 4-9 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, not ramified.

Asci: 5-10 asci per ascocarp, indistinctly stipitate, 64-94 µm long, 34-49 µm wide; dehiscence unitunicate.

Ascospores: 1–2 per ascus, spores 2 per ascus, subglobose, ellipsoid, or ovoid, 30-50 µm long, 25-30 µm wide; septa absent.

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