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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 gonostegiae J. M. Yen & Chin C. Wang. Type: Oidium gonostegiae J. M. Yen & Chin C. Wang.

Taxonomic Literature: Taxonomic notes: +hyphae hyaline, branched, flexuous, undulate, septate, 4-10 µm wide; +appressoria irregular, slightly lobed;+conidiophores foot-cells cylindric;. Braun U., Beih. Nova Hedwigia 89: 1-700 [607] (1987).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous (white, effuse, confluent). Host or Phorophyte Taxonomy: Goniostegia hirta; Goniostegia, Urticaceae.

Conidiophores: Not branched (erect, 80-175 x 13-17 µm); basal cells 30-45 µm long, 11-14 µm wide. Conidium Formation: Conidiogenous cells in chains (3-8 conidia). Conidia: Ellipsoid, ovoid, or doliiform; macroconidial, not branched, 27-32 µm long, 14-19 µm wide; aseptate.

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