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Ovulariopsis lawsoniae Bagyan., U. Braun & Hosag.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-07-26).

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

Type Information: Basionym: Ovulariopsis lawsoniae Bagyan., U. Braun & Hosag. Type: Ovulariopsis lawsoniae Bagyan., U. Braun & Hosag.

Taxonomic Literature: Taxonomic notes: +hyphae internal and external, straight to flexuous, subnodulose, subgeniculate, septate, 2-7.5 µm wide; +appressoria solitary or in pairs, opposite, nipple-shaped, curved or irregularly lobed, ca 2-5 µm; +conidiophores foot cell very long, followed by (0-)1-2(-3) shorter apical cells, terminal conidiogenous cells occasionally swollen, basal part of the foot-cells undulate to helically twisted, basal septum occasionally somewhat away from the branching point of the mycelium. Bagyanarayana G., Braun U. & Hosagoudar V. B., Mycotaxon 32: 457-459 (1988).

Biogeography: Continent: Asia-Tropical. Country or state(s): India.

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous (whitish-greyish). Host or Phorophyte Taxonomy: Lawsonia inermis L.; Lawsonia, Lythraceae.

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

Conidiomata: Present; hyphomycetous.

Conidiophores: Ovulariopsis-type; not branched (arising from the outer mycelium, erect, long and slender, (100-)120-200(-250) x 5-10 µm). Conidium Formation: Conidiogenous cells single. Conidia: More or less clavate; macroconidial (apex obtuse or occasionally subacute; germ tubes 1 or 2 per conidium, subapical or near the base, twisted, 10-100 x 2-5 µm, simple, rarely branched), not branched, 50-120 µm long, (13)-16-23-(28) µm wide; aseptate.

(report generated 04.Okt.2007)

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