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Erysiphe alchorneae var. elliptispora (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2003266]

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: variety. Synonyms: Uncinula alchorneae var. elliptispora R. Y. Zheng & G. Q. Chen; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula alchorneae var. elliptispora R. Y. Zheng & G. Q. Chen. Type: Uncinula alchorneae var. elliptispora R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: This variety differs from var. alchorneae by ascomata characters, see below. Braun U., Beih. Nova Hedwigia 89: 1-700 [481-482] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous. Host or Phorophyte Taxonomy: Alchornea davidi Franch.; Alchornea, Euphorbiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, .09-.14 mm in diam.. Margin: External filaments present; uncinate, circinate, or sub-helicoid, .6-1.5 µm long, 5-7.5 µm in diameter, numerous, (29)-42-78-(103) per mm², growing between the lower and upper hald of the ascocarp, not ramified, septate.

Asci: 5-9-(11) asci per ascocarp, distinctly stipitate, 53.3-76.2 µm long, 35.6-50.8 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 4-6-(7) per ascus, ellipsoid, 20.3-29.1 µm long, 10.2-15.2 µm wide; septa absent.

(report generated 04.Okt.2007)

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