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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 primulae-obconicae Ciocan & Calnegru. Type: Oidium primulae-obconicae Ciocan & Calnegru.

Taxonomic Literature: Taxonomic notes: +hyphae septate, 4.75-12 µm wide. Braun U., Beih. Nova Hedwigia 89: 1-700 [614] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Northern hemispheric. Continent: Europe. Country or state(s): Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia) and Romania.

Ecology: Biotroph; phytopathogenic; growing on leaves (superficial, compact, dense, white). Host or Phorophyte Taxonomy: Primula obconica Hance; Primula, Primulaceae.

Conidiophores: Euoidium-type; not branched (erect, simple, granulose, vacuolose). Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, doliiform, or cylindrical; macroconidial (vacuolose), not branched, 19.04-52.36 µm long, 11.9-24.99 µm wide; aseptate; with distintly visible fibrosin body fibrosin bodies.

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