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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. Synonyms: Oidium phyllanthi Narayanas. & K. Ramakr.; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Oidium phyllanthi J. M. Yen. Type: Oidium phyllanthi J. M. Yen.

Taxonomic Literature: Taxonomic notes: +hyphae hyaline, branched, septate, 3.6-4.2 µm wide; +appressoria lobed;+conidiophores foot-cells cylindric;. Braun U., Beih. Nova Hedwigia 89: 1-700 [614] (1987).

Biogeography: Continent: Asia-Temperate and Asia-Tropical. Country or state(s): Taiwan; India.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous (white, effuse, confluent). Host or Phorophyte Taxonomy: Phyllanthus, Euphorbiaceae.

Conidiophores: Euoidium-type; not branched (erect, 3-8-septate, cylindric, flexuous below, 93.4-156 x 7.2-8.4 µm); basal cells 72-103 µm long, 5-6 µm wide. Conidium Formation: Conidiogenous cells in chains (3-8 conidia). Conidia: Ovoid or cylindrical; macroconidial, not branched, 20-28 µm long, 7-10 µm wide; aseptate.

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