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Erysiphe clintoniopsis (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2024337]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-28). Data set reviewer(s): Schubert K. (06-02-28); revised.

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

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

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregularly polygonal to rounded, ca. 6-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [495-496] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Firmiana simplex; Firmiana, Sterculiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, .08-.125-(.145) mm in diam.. Margin: External filaments present (straight to curved, but not geniculate; sometimes with oil drops; width uniform throughout or somewhat increasing from base to top); circinate (closely) or sub-helicoid, (.75)-1-1.5-(2) µm long, (5)-6-8.5-(9) µm in diameter, hyaline or pigmented (at the very base, yellowish to brown), few or numerous, 6-20 per mm², growing between the lower and upper hald of the ascocarp, smooth or rough (mostly), thin or thick (towards the base, obviously thick-walled below, sometimes even coalescent), not ramified, aseptate or septate (with a single septum at the base).

Asci: 4-6-(7) asci per ascocarp, not stipitate or indistinctly stipitate, 50-75 µm long, 35-60 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (3)-4-6 per ascus, subglobose, ellipsoid, or ovoid, 18-25-(27) µm long, 9.5-18 µm wide.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: More or less cylindrical; macroconidial, not branched, 30-33 µm long, 15-16 µm wide; aseptate.

(report generated 04.Okt.2007)

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