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Erysiphe symplocicola R. Y. Zheng & G. Q. Chen

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-03-27); revised.

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

Type Information: Basionym: Erysiphe symplocicola R. Y. Zheng & G. Q. Chen. Type: Erysiphe symplocicola R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells irregularly polygonal, 7.5-23 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [228] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on stems or leaves, amphigenous. Host or Phorophyte Taxonomy: Symplocos paniculata (Thunb.) Miq.; Symplocos, Symplocaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, in loose groups or gregarious, (.07)-.08-.11-(.12) mm in diam.. Margin: External filaments present (width often decreasing upwards, mostly somewhat pointed at the apex, rarely obtuse); mycelioid, straight (apex mostly somewhat pointed, rarely obtuse), (.5)-1-2.5-(3.5) µm long, (4)-5-7.5-(10) µm in diameter, pigmented (more or less brown, paler upwards), numerous, (4)-8-21-(27) per mm², growing all across the lower half of the ascocarp, flexuose (to tortuous; 3: sometimes) or sub-geniculate (bent), rough (throughout), thin, not ramified or ramified, irregular, septate.

Asci: 2-4-(5) asci per ascocarp, not stipitate or indistinctly stipitate, (48)-53-66-(74) µm long, (33)-43-58.5-(63.5) µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 4-6-(7) per ascus, ellipsoid or ovoid, (20)-23-26.5-(29) µm long, (12)-13-15-(17) µm wide; septa absent; wall pale brown (yellowish).

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ovoid, doliiform, or sub-cylindrical; macroconidial, not branched, 20-38 µm long, 12-16.5 µm wide; aseptate.

(report generated 04.Okt.2007)

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