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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-08-01). Data set reviewer(s): Schubert K. (06-07-26); revised.

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

Type Information: Basionym: Ovulariopsis erysiphoides Pat. & Har. Type: Ovulariopsis erysiphoides Pat. & Har.

Taxonomic Literature: Taxonomic notes: +hyphae hyaline, branched, septate, ca 5 µm wide. Braun U., Beih. Nova Hedwigia 89: 1-700 [620] (1987).

Ecology: Biotroph; phytopathogenic (mycelium pannose, white). Host or Phorophyte Taxonomy: Euphorbia balsamifera Aiton; Erysiphe, Euphorbiaceae and Malvaceae.

Conidiophores: Ovulariopsis-type; not branched (septate, cylindric, ca 6-7 µm wide). Conidium Formation: Conidiogenous cells single. Conidia: Clavate; macroconidial, not branched, 60-70 µm long, 12 µm wide; aseptate.

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