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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (03-01-21). Data set not revised.

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

Taxonomic Literature: Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Asia-Temperate (Armenia) and Europe. Country or state(s): Ukraine.

Ecology: Biotroph; phytopathogenic; growing on leaves. Host or Phorophyte Taxonomy: Malvaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, .14-.22 mm in diam.. Margin: External filaments present (short); .8 µm long, 6 µm in diameter, hyaline or pigmented (brownish), growing at the ascocarp base, ramified, not branched (irregularly).

Asci: Distinctly stipitate, 60-90 µm long, 25-50 µm wide; dehiscence unitunicate (asci numerous).

Ascospores: 1–2 per ascus, spores 2 per ascus, ellipsoid, 26-41.4 µm long, 12.5-22 µm wide.

Conidia: Broadly ellipsoid or ovoid (to lanceolate, apex usually abruptly constricted, with papilloid apex; secondary conidia 36-62 x 14-24 µm, surface with coarse warts); 40-70 µm long, 14-25 µm wide.

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