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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. (06-07-25); revised.

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

Type Information: Basionym: Oidium emiliae-sonchifoliae Sawada. Type: Oidium emiliae-sonchifoliae Sawada.

Taxonomic Literature: Taxonomic notes: +hyphae branched, septate, 8 µm wide; +conidiophores foot-cells followed by a single shorter cell;. Braun U., Beih. Nova Hedwigia 89: 1-700 [606] (1987).

Ecology: Biotroph; phytopathogenic; growing on leaves. Host or Phorophyte Taxonomy: Emilia sonchifolia (L.) DC.; Emilia, Compositae.

Conidiophores: Euoidium-type; not branched (erect); basal cells 48-72 µm long, 12-13 µm wide. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid; macroconidial (vacuolate), not branched, rounded at both ends, 32-48-(53) µm long, 12-23 µm wide; aseptate; with distintly visible fibrosin body fibrosin bodies.

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