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Erysiphe togashiana var. rigida (U. Braun & Tanda) U. Braun & S. Takam. [2000052]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-03-06); revised.

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

Type Information: Basionym: Uncinula togashiana var. rigida U. Braun & Tanda. Type: Uncinula togashiana var. rigida U. Braun & Tanda.

Taxonomic Literature: Taxonomic notes: This variety differs from var. togashiana by ascomata characters, see below. Braun U., Beih. Nova Hedwigia 89: 1-700 [530-532] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Pterostyrax hispidus Siebold & Zucc.; Pterostyrax, Styracaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .08-.09 mm in diam.. Margin: External filaments present (width gradually decreasing from base to top); circinate, 1-2 µm long, 3.5-8 µm in diameter, hyaline or pigmented (sometimes faintly coloured at the base), numerous, 15-25 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight (regular), smooth or rough, thin or thick (towards the base), not ramified, aseptate or septate (0-1(-2)-septate).

Asci: 3-7 asci per ascocarp, not stipitate or indistinctly stipitate, 40-60 µm long, 30-45 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 3-5 per ascus, subglobose, ellipsoid, or ovoid, 15-24 µm long, 9.5-14 µm wide; septa absent.

(report generated 04.Okt.2007)

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