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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 robustum U. Braun & Oehrens. Type: Oidium robustum U. Braun & Oehrens.

Taxonomic Literature: Taxonomic notes: +hyphae ca 3-8 µm wide, septate, branched, hyaline; +appressoria lobed, usually multilobed;+conidiophores foot-cells straight, cylindric, followed by 1-2 cells, the subsequent cells are usually about as long as the foot-cells or longer, seldom shorter;. Braun U., Beih. Nova Hedwigia 89: 1-700 [615] (1987).

Ecology: Biotroph; phytopathogenic; growing on leaves (effuse, thin, white), epiphyllous (usually) or amphigenous. Host or Phorophyte Taxonomy: Maytenus boaria Molina; Maytenus, Celastraceae.

Conidiophores: Pseudoidium-type; not branched (erect, robust). Conidium Formation: Conidiogenous cells single. Conidia: More or less cylindrical (mostly long and slender); macroconidial, not branched, 28-50 µm long, 13-18 µm wide; aseptate.

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