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Erysiphe adunca var. salici-gracilistylae (Homma) U. Braun & S. Takam. [2004262]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-28). Data set reviewer(s): Schubert K. (06-02-28); revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: variety. Synonyms: Uncinula adunca var. salici-gracilistylae (Homma) U. Braun; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula salici-gracilistylae Homma. Type: Uncinula salici-gracilistylae Homma.

Taxonomic Literature: Taxonomic notes: This variety differs from the other varieties by ascomata characters, see below. Braun U., Beih. Nova Hedwigia 89: 1-700 [471-474] (1987).

Biogeography: Continent: Asia-Temperate and Europe. Region(s): Far Eastern Asia and China.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Salix gracilistyla Miq.; Salix, Salicaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, .1-.15 mm in diam.. Margin: External filaments present (This variety differs from the other varieties of U. adunca by the shape of the appendages. They possess an irregular outline with constrictions and swellings.); uncinate or circinate, 1 µm long, numerous, 50-90 per mm², growing between the lower and upper hald of the ascocarp, not ramified, septate.

Asci: 6-8 asci per ascocarp, indistinctly stipitate, 45-55 µm long, 30-35 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores (3)-4-5 per ascus, ellipsoid or ovoid, 19-24 µm long, 10-12 µm wide; septa absent.

(report generated 04.Okt.2007)

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