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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 ladaniferi Thüm. Type: Oidium ladaniferi Thüm.

Taxonomic Literature: Taxonomic notes: +hyphae ca 3-7 µm wide; +appressoria nipple-shaped;+conidiophores foot-cells cylindric, followed by 1-3 shorter cells;. Braun U., Beih. Nova Hedwigia 89: 1-700 [610] (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): Portugal and Spain (incl. Andorra & Monaco).

Ecology: Biotroph; phytopathogenic; growing on leaves (effuse or irregular patches, white, thin), epiphyllous or amphigenous (rarely). Host or Phorophyte Taxonomy: Cistus ladanifera L.; Cistus, Cistaceae.

Conidiophores: Euoidium-type; not branched (erect); basal cells 40-60 µm long, 10-14 µm wide. Conidium Formation: Conidiogenous cells in chains. Conidia: More or less ellipsoid; macroconidial, not branched, 28-35 µm long, 14-20 µm wide; aseptate; without distinct fibrosin body fibrosin bodies.

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