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Oidium bauhiniicola U. Braun & Dianese

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-06-12).

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

Type Information: Basionym: Oidium bauhiniicola U. Braun & Dianese.

Taxonomic Literature: Taxonomic notes: Differt a Oidium phyllanthi conidiophoris rectis vel subrectis et conidiis subcylindraceis, ellipsoideis-ovoideis, doliiformibus; hyphae branched, septate, hyaline, thin-walled, 2-5 µm wide, smooth to rough-walled; appressoria nipple-shaped to lobed, 2-8 µm diam., solitary or in opposite pairs. Braun U., Delhey R., Dianese J. C. & Hosagoudar V. B. 2006, Schlechtendalia 14: 85-97.

Biogeography: Continent: Southern America (Brazil).

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous (sparse on the lower leaf surface) or epiphyllous. Host or Phorophyte Taxonomy: Bauhinia sp.; Bauhinia, Leguminosae-Caesalpinioideae.

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

Conidiomata: Present; hyphomycetous (subgen. Microidium).

Conidiophores: Not branched (conidiophores erect, long foot-cells followed by (0-)1-2 much shorter cells, foot-cells straight, subcylindrical, at most somewhat curved to slightly sinuous at the very base, occasionally somewhat constricted at the base, hyaline, thin-walled); conidiophore cells 40-150 µm long, basal cells 5-10 µm wide. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, ovoid, obovoid (primary conidia), doliiform, sub-cylindrical, or citriform; macroconidial (primary conidia more or less obovoid, apex rounded, base truncate; conidia thin-walled, smooth to somewhat rough-walled, fresh conidia often with numerous oil-droplets, germ tubes subterminal, short, subcylindrical to subclavate), not branched, sub-truncate at both ends (secondary conidia), 15-25-(28) µm long, 7-12 µm wide; aseptate; cell wall hyaline; without distinct fibrosin body fibrosin bodies.

(report generated 04.Okt.2007)

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