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Erysiphe sengokui (E. S. Salmon) U. Braun & S. Takam. [2000051]

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

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

Type Information: Basionym: Uncinula sengokui E. S. Salmon. Type: Uncinula sengokui E. S. Salmon.

Taxonomic Literature: Taxonomic notes: +conidia germ tubes very short and terminating in a multilobed appressorium;+ascomata outer wall cells obscure, irregularly polygonal, ca. 8-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [526-528] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): China. Country or state(s): Japan.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Celastrus orbiculatus Thunb. ex A.Murray; Celastrus, Celastraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, (.09)-.1-.135-(.165) mm in diam.. Margin: External filaments present (width variable, often somewhat attenuated at the very base; coiled part not expanded or only very slightly); uncinate (relatively loosely) or circinate, 1-1.5 µm long, 7-12.5 µm in diameter, hyaline or pigmented (brown at the base), numerous, (9)-15-35 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight (rather), smooth, thin or thick (towards the base), not ramified, septate (0-2-septate).

Asci: 4-10-(13) asci per ascocarp, not stipitate or indistinctly stipitate, 45-65 µm long, 25-45 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 4-6 per ascus, ellipsoid or ovoid, (14)-17-23-(31) µm long, (7)-9-14 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid; macroconidial, not branched; aseptate.

(report generated 04.Okt.2007)

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