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Erysiphe evodiae (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2013784]

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 evodiae R. Y. Zheng & G. Q. Chen; Erysiphaceae Tul. & C. Tul.; Erysiphales.

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

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells distinct, irregularly polygonal, ca. 8-25.5 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [534-535] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous (mostly) or amphigenous. Host or Phorophyte Taxonomy: Evodia daniellii (Benn.) Hemsl.; Evodia, Rutaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, gregarious, .093-.125 mm in diam.. Margin: External filaments present (usually more or less straight, rarely somewhat curved, subundulate to geniculate; width subequal throughout or somewhat increasing upwards and then again narrowing towards the tip); circinate (close) or sub-helicoid, 1-1.5 µm long, (5)-6.5-10 µm in diameter, hyaline or pigmented (basis brown, yellowish or only faintly yellowish upwards, apex hyaline), few, 5-12 per mm², growing between the lower and upper hald of the ascocarp, geniculate (bent), verrucose, thin or thick (towards the base, coalescent below), not ramified, aseptate or septate (0-1-septate).

Asci: (4)-5-9-(10) asci per ascocarp, not stipitate (subsessile) or indistinctly stipitate, 52-73.7 µm long, 33-52 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (4)-5-7 per ascus, ellipsoid or ovoid, (14.5)-21-27-(31) µm long, (10.5)-12.5-15-(16.5) µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Doliiform or sub-cylindrical; macroconidial, not branched, 27-39.5 µm long, 10.4-14.6 µm wide; aseptate.

(report generated 04.Okt.2007)

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