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Phyllactinia dalbergiae Piroz.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-08-02). Data set reviewer(s): Schubert K. (06-04-05); revised.

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

Type Information: Basionym: Phyllactinia dalbergiae Piroz. Type: Phyllactinia dalbergiae Piroz.

Taxonomic Literature: Taxonomic notes: +conidiophores foot-cells twisted, spiral, followed by shorter cells;+ascomata outer wall cells irregularly polygonal, ca. 8-20 µm diam.;+penicillate cells well developed, ca. 40-60 µm long;. Braun U., Beih. Nova Hedwigia 89: 1-700 [594] (1987).

Biogeography: Continent: Asia-Temperate, Southern America (Argentina), and Asia-Tropical. Region(s): China. Country or state(s): India and Pakistan.

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous (mostly) or amphigenous. Host or Phorophyte Taxonomy: Dalbergia sissoo Roxb.; Dalbergia, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, (.14)-.16-.21 mm in diam.. Margin: External filaments present (bulbous base ca. 25-45 µm diam.); not interlaced, straight, .8-1-1.2 µm long, numerous, 6-19 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, not ramified.

Asci: 5-15 asci per ascocarp, distinctly stipitate, 40-80 µm long, 20-35 µm wide; dehiscence unitunicate.

Ascospores: 1–2 per ascus, spores 2 per ascus, ellipsoid or ovoid, (20)-25-35 µm long, 18-25 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Ovulariopsis-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: More or less clavate; macroconidial (germ tubes at an end of the spore, short and narrow, straight or hooked, apex without appressorium or with a slight, unlobed appressorium), not branched, 50-90 µm long, (10)-13-24 µm wide; aseptate.

(report generated 04.Okt.2007)

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