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Erysiphe sambuci S. Ahmad var. sambuci

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: variety. Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe sambuci S. Ahmad var. sambuci. Type: Erysiphe sambuci S. Ahmad var. sambuci.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells irregularly polygonal, ca. 5-15 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [226-228] (1987).

Biogeography: Continent: Asia-Temperate and Asia-Tropical. Region(s): China. Country or state(s): Pakistan.

Ecology: Biotroph; phytopathogenic; growing on stems or leaves, amphigenous. Host or Phorophyte Taxonomy: Sambucus ebulus L.; Sambucus, Caprifoliaceae.

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)-.095-.15 mm in diam.. Margin: External filaments present; mycelioid, straight, (.5)-1-2-(2.5) µm long, (4)-5-6-(7.5) µm in diameter, hyaline (at first; 2: later brown throughout, seldom brown below and paler upwards) or pigmented, numerous, growing all across the lower half of the ascocarp, smooth or rough, thin, not ramified, septate.

Asci: (2)-3-6 asci per ascocarp, not stipitate or indistinctly stipitate, 50-70 µm long, 30-55 µm wide; dehiscence unitunicate (wall thin).

Ascospores: 1–2 to c. 4 per ascus, spores 2-4 per ascus, ellipsoid or broadly ovoid, 20-26-(28) µm long, 14-18-(21) µm wide; septa absent.

(report generated 04.Okt.2007)

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