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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-03-20).

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

Type Information: Basionym: Erysiphe otanii Y. Nomura. Type: Erysiphe otanii Y. Nomura.

Taxonomic Literature: Taxonomic notes: + cleistothecia: cellulae peridii irregulariter angulatae, 15-20 × 12,5-17,5 µm. Nomura Y., Taxonomical study of Erysiphaceae of Japan. - 1-281 [191-192]. Tokyo (1997).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Laportea bulbifera (Siebold & Zucc.) Wedd.; Laportea, Urticaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular (globosa vel spheroidea), scattered or gregarious, .1-.15 mm in diam.. Margin: External filaments present; straight, 50-500 µm long, (2)-3-6-(10) µm in diameter, numerous, 14-26 per mm², growing at the ascocarp base, stiff and straight (rectae vel leviter curvatae), thin or moderatly thick (prope basim leviter incrassatae), not ramified or ramified, septate (1-7-septatae).

Asci: 10-18 asci per ascocarp, globose (ellipsoidei), indistinctly stipitate, 47-60 µm long, 32-40 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 3-5 per ascus, subglobose or ovoid, 12.5-22.5 µm long, 9-14 µm wide; septa absent.

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