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Erysiphe glycines var. lespedezae (R. Y. Zheng & U. Braun) U. Braun & R. Y. Zheng

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-01-25); revised.

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

Type Information: Basionym: Erysiphe lespedezae R. Y. Zheng & U. Braun. Protologue: Erysiphe lespedezae R. Y. Zheng & U. Braun.

Taxonomic Literature: Taxonomic notes: +conidiophores foot-cells curved or somewhat flexuous, followed by 0-2 shorter cells;+ascocarp outer wall cells irregularly polygonal, ca. 8-25 µm diam.;This variety differs from var. glycines by ascomata characters, see below. Braun U., Beih. Nova Hedwigia 89: 1-700 [192-193] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Lespedeza tomentosa (Thunb.) Siebold; Lespedeza, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, (75)-85-130-(150) mm in diam.. Margin: External filaments present (well developed, slender); interlaced with each other or interwoven with surrounding mycelium (often forming a dense web), mycelioid, straight, .5-5 µm long, (2)-3-6-(7) µm in diameter, hyaline or pigmented (yellowish, but never brown), numerous (mostly), growing all across the lower half of the ascocarp, flexuose, smooth or rough, thin, not ramified or ramified, rarely irregular, septate.

Asci: (5)-6-11-(14) asci per ascocarp, not stipitate or indistinctly stipitate, 50-80 µm long, 30-50 µm wide; dehiscence unitunicate.

Ascospores: c. 8 (frequently 8 spores) per ascus, spores 6-8 per ascus, subglobose, ellipsoid, ovoid, or reniform, 14-23.5 µm long, 9.5-14-(16) µm wide; septa absent; wall thin, remaining hyaline, hyaline (to faintly yellowish), not ornamented.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched; basal cells 19-52 µm long, 7-9 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid, ovoid, or cylindrical (barrel-shaped); macroconidial, not branched, 25-50 µm long, 13-25 µm wide.

(report generated 04.Okt.2007)

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