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Erysiphe angusiana (Piroz.) U. Braun & S. Takam. [2019625]

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 or basionymous. Taxonomic rank: species. Synonyms: Uncinula angusiana Piroz.; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula angusiana Piroz. Type: Uncinula angusiana Piroz.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregularly shaped, ca. 10-15 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [482-483] (1987).

Biogeography: Continent: Africa. Country or state(s): Zambia (only known from the type collection).

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous. Host or Phorophyte Taxonomy: Albizia anthelmintica Brongn.; Albizia, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .08-.17 mm in diam.. Margin: External filaments present; uncinate or circinate (not enlarged, coiled part 10-18 µm across), .75-1 µm long, 5.5 µm in diameter, hyaline, numerous, 60-100 per mm², growing more or less between the lower and upper hald of the ascocarp, somewhat geniculate (bent) (occasionally, or straight), thin or moderatly thick (below when forked, or thin-walled throughout), not ramified or ramified (sometimes forked in the lower half), aseptate or septate (very rarely with a single septum at the base).

Asci: (6)-12 asci per ascocarp, distinctly stipitate, 49-66 µm long, 25-36 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (4)-6-8 per ascus, ellipsoid, ovoid, or reniform, 14-23 µm long, 8-11 µm wide; septa absent.

(report generated 04.Okt.2007)

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