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Erysiphe rodgersiae (Y. Nomura) U. Braun

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. Synonyms: Setoerysiphe rodgeriae Y. Nomura; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Setoerysiphe rodgeriae Y. Nomura. Type: Setoerysiphe rodgeriae Y. Nomura.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 6-15 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [268] (1987).

Biogeography: Continent: Asia-Temperate. Country or state(s): Japan (endemic).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Rodgersia podophylla A. Gray; Rodgersia, Saxifragaceae.

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-.12 mm in diam.. Margin: External filaments present (not uniform, two types of appendages present, the longer ones arise from the lateral portion of the ascocarp, numerous, ca. 30-50, 150-400 µm long, the shorter ones are in the upper half of the ascocarp, 14-22, length 40-80 µm); interlaced with each other, mycelioid (the longer ones) or setiform (the shorter ones, bristle like, straight to curved, sometimes geniculate, apex occasionally enlarged), straight (occasionally enlarged), .5-4 µm long, 3-8 µm in diameter, hyaline or pigmented (the shorter ones, pale brown), numerous, growing between the lower and upper hald of the ascocarp (the longer ones, Erysiphe like) or on the upper half of the ascocarp (the shorter ones), smooth, thin, not ramified or ramified (occasionally), not branched, aseptate or septate (a single septum).

Asci: 10-17 asci per ascocarp, distinctly stipitate, 55-65 µm long, 20-40 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-8 per ascus, ellipsoid, 13-24 µm long, 6-10 µm wide; septa absent.

(report generated 04.Okt.2007)

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