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Erysiphe dabashanensis (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2003379]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-03-01); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Uncinula dabashanensis R. Y. Zheng & G. Q. Chen; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula dabashanensis R. Y. Zheng & G. Q. Chen. Type: Uncinula dabashanensis R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 7.5-18 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [542] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): China (only known from the type collection).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Litsea populifolia Gamble; Litsea, Lauraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .075-.125 mm in diam.. Margin: External filaments present (straight, seldom curved, very rarely subnodulose; width equal throughout or rarely somewhat narrowing upwards); uncinate or sub-helicoid, .8-1 µm long, 5.6-8.9 µm in diameter, hyaline, few, 6-16 per mm², growing between the lower and upper hald of the ascocarp, smooth or faintly rough (sometimes), thick (throughout, up to the coiled part, coalescent), not ramified, aseptate or septate (very rarely with a single septum at the base).

Asci: 6-11 asci per ascocarp, not stipitate or indistinctly stipitate, 43-63.5 µm long, 31.5-43 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 5-8 per ascus, ovoid (oblong), 16.5-21.5 µm long, 10.5-15 µm wide; septa absent; wall pale brown (faintly yellowish).

(report generated 04.Okt.2007)

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