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Podosphaera dipsacacearum (Tul. & C. Tul.) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Sphaerotheca dipsacearum (Tul. & Tul.) L. Junell; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe dipsacearum Tul. & Tul.

Taxonomic Literature: Taxonomic notes: +ascoc. outer wall cells irregularly shaped, fairly conspicuous, 10-
30 µm in diam.;.
Braun U., Beih. Nova Hedwigia 89: 1-700 [127] (1987).

Biogeography: Continent: Asia-Temperate and Europe (from Spain to Turkey and to the European part of the USSR). Country or state(s): Kazakhstan (and Armenia, Azerbaidzan, Israel), Kyrgyzstan, Turkmenistan, Tajikistan, Uzbekistan, Afghanistan, and Lebanon-Syria.

Ecology: Biotroph; phytopathogenic; amphigenous. Host or Phorophyte Taxonomy: Dipsacaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or often gregarious, .075-.11 mm in diam.. Margin: External filaments present; mycelioid, .5-4-(5) µm long, 3-10 µm in diameter, pigmented (brown throughout or paler upwards), usually numerous, growing all across the lower half of the ascocarp, smooth or rough, thin, not ramified, septate.

Asci: 1 asci per ascocarp, not stipitate or indistinctly stipitate (seldom very shortly starked), 50-95 µm long, 45-75 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-8 per ascus, ellipsoid or ovoid, 20-32 µm long, 12-21 µm wide; septa absent; wall thin, remaining hyaline, hyaline, not ornamented.

Conidiophores: Oidium-type.

(report generated 04.Okt.2007)

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