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Erysiphe pseudoehretiae (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2023651]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-03-02); revised.

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

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

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, 7.6-26.3 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [517] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): China (endemic).

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous. Host or Phorophyte Taxonomy: Cudrania tricuspidata (Carrière) Bureau ex Lavallée; Cudrania, Moraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .06-.089 mm in diam.. Margin: External filaments present (straight to curved, gracile, apex not enlarged); uncinate or circinate (mostly), .5-1 µm long, 4.8-6.8 µm in diameter, hyaline, few, 4-12 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight (to curved), faintly rough, thin or thick (towards the base, often coalescent below), not ramified, aseptate.

Asci: (3)-4-5-(6) asci per ascocarp, not stipitate or indistinctly stipitate (seldom), 40.6-58.4 µm long, 31.5-48.3 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 3-6 per ascus, ovoid (oblong-), 17.8-27.3 µm long, 12.1-18.9 µm wide; septa absent.

(report generated 04.Okt.2007)

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