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Phyllactinia babayanii Simonyan

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-08-02). Data set reviewer(s): Schubert K. (06-04-04); revised.

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

Type Information: Basionym: Phyllactinia babayanii Simonyan. Type: Phyllactinia babayanii Simonyan.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregularly polygonal;. Braun U., Beih. Nova Hedwigia 89: 1-700 [589-590] (1987).

Biogeography: Continent: Asia-Temperate (USSR, Armenia).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Amygdalus communis L.; Amygdalus, Rosaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular (at first globose, later depressed), forming independently from the host thallus or mycelium, scattered, .25-.3 mm in diam.. Margin: External filaments present (bulbous base ca. 50-70 µm wide; appendages awl-shaped or blunt, sometimes poorly developed); not interlaced, straight, up to 1-(1.5) µm long, few, 6-12 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, not ramified.

Asci: Up to 30 asci per ascocarp, narrowly clavate, distinctly stipitate, 70-115 µm long, 25-35 µm wide; dehiscence unitunicate.

Ascospores: 1–2 per ascus, spores 2 per ascus, ellipsoid or ovoid, 24-50 µm long, 18-24 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Ovulariopsis-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Clavate (slightly rhomboid); macroconidial (germ tubes arising from a side of the spore, upper or lower part, simple or irregularly branched, appressoria unlobed), not branched, 53.2-78.4 µm long, 16.8-19.6 µm wide; aseptate.

(report generated 04.Okt.2007)

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