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Erysiphe amanoi (Y. Nomura) U. Braun & S. Takam. [2000008]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-02-28).

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Uncinula amanoi Y. Nomura; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula amanoi Y. Nomura. Type: Uncinula amanoi Y. Nomura.

Taxonomic Literature: Taxonomic notes: + cleistothecia: cellulatae peridii irregulariter angulatae, 13-18 × 10-15 µm. Nomura Y., Taxonomical study of Erysiphaceae of Japan: 69. Tokyo (1997).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Alnus pendula Matsum.; Alnus, Betulaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular (globosa vel sphaeroidea), forming independently from the host thallus or mycelium, scattered, .09-.13 mm in diam.. Margin: External filaments present; mycelioid, circinate (ad apicem 2-3 spiraliter vel circinatim volutae), 130-460 µm long, 2.5-8 µm in diameter, hyaline, numerous, 27-48 per mm², growing between the lower and upper hald of the ascocarp, geniculate (bent) (curvatae conspicue, undulatae vel interdum geniculatae), thin, not ramified or rarely ramified, not branched (raro ramulis brevibus protuberationi similibus), aseptate or septate (0-1(-2)-septatae).

Asci: 3-10 asci per ascocarp, globose (late ovati), indistinctly stipitate, 40-58 µm long, 37-48 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 4-7 per ascus, ellipsoid (vel latae ellipsoideae), 15-25 µm long, 10-15 µm wide; septa absent.

(report generated 04.Okt.2007)

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