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Ovulariopsis ellipsospora G. J. M. Gorter

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-03-21).

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

Type Information: Basionym: Ovulariopsis ellipsospora G. J. M. Gorter. Type: Ovulariopsis ellipsospora G. J. M. Gorter.

Taxonomic Literature: Taxonomic notes: + mycelium dense, white, observed to enter the stomata; appressoria multilobed on external mycelium. Gorter G.J.M.A., South African Journal Botany 55(3): 337-339 (1989).

Biogeography: Continent: Africa. Region(s): Southern Africa. Country or state(s): Transvaal (north-eastern South Africa).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Cajanus cajan (L.) Millsp.; Cajanus, Leguminosae-Papilionoideae.

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

Conidiomata: Present; hyphomycetous.

Conidiophores: Ovulariopsis-type (conidiophores abundant, erect, arising from external hyphae; conidiogenous cells comparatively short, 28-50 × 7,5-10 µm); not branched; basal cells 7.5-10 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid (to elongated ellipsoid, occasionally boat-shaped (primary conidia), L/B ratio of ca. 2,6-2,7); macroconidial (secondary conidia scarce, for the most part ellipsoid), not branched, (40)-60-65-(80) µm long, (17.5)-22.5-(27.5) µm wide; aseptate.

(report generated 04.Okt.2007)

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