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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. (06-03-24); revised.

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

Type Information: Basionym: Erysiphe limonii L. Junell. Type: Erysiphe limonii L. Junell.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells irregularly polygonal, 8-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [219] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Africa, Asia-Temperate, and Europe. Region(s): Middle Asia, China, and Mongolia. Country or state(s): Denmark, United Kingdom, Germany, Hungary, France (excl. Corsica), Spain (incl. Andorra & Monaco), Bulgaria, Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia), Romania, Former Yugoslavia [incl. Bosnia and Herzegovina, Croatia, Macedonia, Moldova, Serbia and Montenegro, Slovenia], and Ukraine; Canary Islands (Spain).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Limonium vulgare Mill.; Limonium, Plumbaginaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, gregarious, (.09)-.1-.15-(.18) mm in diam.. Margin: External filaments present (narrow; short, shorter than the cleistothecial diam., seldom longer, apically often somewhat pointed); interlaced with each other or interwoven with surrounding mycelium, mycelioid, straight, .5-1 µm long, 4-8 µm in diameter, hyaline or pigmented (brown in the lower half or sometimes throughout), few or numerous, growing all across the lower half of the ascocarp, thin, not ramified (mostly), septate.

Asci: 3-8 asci per ascocarp, not stipitate or indistinctly stipitate, 45-85 µm long, 25-50 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 3-6 per ascus, subglobose, ellipsoid, or ovoid, 17.5-30 µm long, 10-17.5 µm wide; septa absent.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Doliiform or more or less cylindrical; macroconidial, not branched, 25-47 µm long, 11-16-(19) µm wide; aseptate.

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