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Erysiphe schizophragmatis (Tanda & Y. Nomura) U. Braun & S. Takam. [2000050]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-03-20).

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

Type Information: Basionym: Uncinula schizophragmatis Tanda & Y. Nomura. Type: Uncinula schizophragmatis Tanda & Y. Nomura.

Taxonomic Literature: Taxonomic notes: + cleistothecia: cellulae parietis exterioris irregulariter angulatae, 11-22 × 10-18 µm. Nomura Y., Taxonomical study of Erysiphaceae of Japan. - 1-281 [84-85]. Tokyo (1997).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Schizophragma hydrangeoides Siebold & Zucc.; Schizophragma, Hydrangeaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid (atro-brunnea), orbicular (globosa), scattered or gregarious, .083-.119 mm in diam.. Margin: External filaments present; uncinate or helicoid, 184-263 µm long, 6.5-7.8-(10.4) µm in diameter, hyaline or pigmented (prope basim brunneae vel atro-brunneae), few, 7-12 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight (rectae vel interdum leviter curvatae), thin or thick (prope basim), not ramified, aseptate (0-1-septatae) or septate.

Asci: 6-13 asci per ascocarp, globose (obovoid), not stipitate or indistinctly stipitate, 40-68 µm long, 29-40 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 4-5 per ascus, ellipsoid, 22-25 µm long, 10-17 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched (conidiophora e hyphis repentibus exorientia, recta, 1-2-septata, prope basim leviter curvata); conidiophore cells 64-90 µm long, basal cells 8-10 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid; macroconidial, not branched, 27-38 µm long, 14-18 µm wide; aseptate.

(report generated 04.Okt.2007)

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