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Phyllactinia ehretiae D. Z. Xie

Data Set Maintenance: Data set compiled. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-01-30).

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

Type Information: Basionym: Phyllactinia ehretiae D. Z. Xie. Type: Phyllactinia ehretiae D. Z. Xie.

Taxonomic Literature: Taxonomic notes: + cellulae parietis exterioris irregulariter angulatae, 6,3-25,3 µm diam. Xie D. Z., Bull. bot. Res., Harbin, Harbin 8(2): 69-70 (1988).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Ehretia corylifolia C. H. Wright; Ehretia, Boraginaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .219-.32 mm in diam.. Margin: External filaments present; mycelioid or setiform (neither mycelioid nor setiform; bristly like with a bulbous base, apex narrowed, subacute; aciculares, ad apicem rotundae, ad basim bulbosae et aliquando ad medium bulbosae quoque), straight, (249)-326-629-(777) µm long, hyaline, few or numerous, 7-14 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, not ramified, aseptate.

Asci: Cylindrical (elongato-ellipsoidei vel ovoidei, breviter pedicillati), 47-113 µm long, 24-47 µm wide; dehiscence unitunicate.

Ascospores: 1–2 per ascus, spores 2 per ascus, ellipsoid or ovoid, 36-53 µm long, 15-27 µm wide; septa absent.

Conidiomata: Absent resp. not observed.

(report generated 04.Okt.2007)

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