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Phyllactinia combreti Doidge

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 combreti Doidge. Type: Phyllactinia combreti Doidge.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregularly shaped;. Braun U., Beih. Nova Hedwigia 89: 1-700 [592] (1987).

Biogeography: Continent: Africa (South Africa).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Combretum zeyheri Sond.; Combretum, Combretaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .275-.4 mm in diam.. Margin: External filaments present (ca. 220-450 µm in length, basal swelling 35-50 µm diam.); not interlaced, straight, 1 µm long, numerous, 15-20 per mm², stiff and straight, not ramified.

Asci: 40-50 asci per ascocarp, distinctly stipitate, 80-95 µm long, 27.5-37.5 µm wide; dehiscence unitunicate (numerous).

Ascospores: 1–2 to c. 4 per ascus, spores 2-3 per ascus, ellipsoid, 35-40 µm long, 17.5-25 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Ovulariopsis-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid (oblong-) or clavate (rarely sub-; usually tapering slightly ro rounded ends); macroconidial, not branched, 62.5-80 µm long, 17.5-22.5 µm wide; aseptate.

(report generated 04.Okt.2007)

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