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Oidium acanthospermi Chidd.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-08-01). Data set reviewer(s): Schubert K. (06-07-24); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Acrosporium acanthospermi (Chidd.) Subram.; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Oidium acanthospermi Chidd. Type: Oidium acanthospermi Chidd.

Taxonomic Literature: Taxonomic notes: + hyphae septate, branched, ca. 6-8 µm wide, appressoria nipple-shaped;+conidiophores foot-cells cylindric;. Braun U., Beih. Nova Hedwigia 89: 1-700 [596] (1987).

Biogeography: Continent: Southern America and Asia-Tropical. Country or state(s): India; Cuba.

Ecology: Biotroph; phytopathogenic; growing on leaves (scarce, thin). Host or Phorophyte Taxonomy: Acanthospermum hispidum DC.; Acanthospermum, Compositae.

Reproduction Strategy: Only known as sterile, asexually reproducing form.

Conidiomata: Present; hyphomycetous.

Conidiophores: Euoidium-type; not branched; basal cells 10-12 µm long. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, ovoid, or doliiform; macroconidial, not branched, (23.5)-25-30-(36) µm long, (12.5)-15-19-(20.5) µm wide; aseptate.

(report generated 04.Okt.2007)


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