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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. (06-07-24); revised.

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

Type Information: Basionym: Oidium calanchoeae Lüstner ex U. Braun. Type: Oidium calanchoeae Lüstner ex U. Braun.

Taxonomic Literature: Taxonomic notes: +appressoria lobed;. Braun U., Beih. Nova Hedwigia 89: 1-700 [602] (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): Norway, Germany, Hungary, Netherlands, Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia), and Romania.

Ecology: Biotroph; phytopathogenic; growing on leaves (patches, greyish white), epiphyllous (mostly) or amphigenous. Host or Phorophyte Taxonomy: Kalanchoe sp.; Kalanchoe, Crassulaceae.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid or cylindrical; macroconidial (germ tubes apical or subapical, short, terminating in a lobed appressorium), not branched, 36 µm long, 16 µm wide; aseptate.

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