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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-01-12); revised.

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

Type Information: Basionym: Leveillula rubiae Khodap., U. Braun & Hamz. Zargh. Type: Leveillula rubiae Khodap., U. Braun & Hamz. Zargh.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells obscure, irregular. Khodaparast S. A., Braun U. & Hamzeh Zarghani H., Schlechtendalia 4: 49-51 (2000).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Rubia tinctoria Salisb.; Rubia, Rubiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, .16-.227-(.25) mm in diam.. Margin: External filaments present; mycelioid, straight, 70-120-(150) µm long, 6-10-(14) µm in diameter, pigmented (brown), numerous, ramified (strongly irregularly branched, often branched at the base), aseptate.

Asci: Distinctly stipitate, (75)-80-117 µm long, (27)-30-37-(40) µm wide; dehiscence unitunicate (numerous).

Ascospores: 1–2 per ascus, spores 2 per ascus, ellipsoid or ovoid, (32)-40-47-(50) µm long, (13)-15-20-(23) µm wide; septa absent; wall hyaline.

Conidiophores: Oidiopsis-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: More or less cylindrical (primary as well as secondary conidia; ends often somewhat wider and often somewhat narrower in the middle); macroconidial (primary and secondary conidia), not branched, (30)-45-55-(65) µm long, (12)-14-20-(22) µm wide; aseptate.

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