Erysiphe nomurae (U. Braun) U. Braun

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-27). Data set reviewer(s): Schubert K. (06-03-24); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Microsphaera nomurae U. Braun; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera nomurae U. Braun. Type: Microsphaera nomurae U. Braun.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 10-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [427-428] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): China. Country or state(s): Japan.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Symplocos chinensis ssp. pilosa (Nakai) Kitag.; Symplocos, Symplocaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .07-.115-(.13) mm in diam.. Margin: External filaments present; recurved (distinctly), .5-1.5 µm long, 6-12 µm in diameter, hyaline or pigmented (at the base), few or numerous, 4-15 per mm², growing between the lower and upper hald of the ascocarp, somewhat flexuose or stiff and straight, smooth, thin or thick (towards the base), ramified, dichotomously branched (3-6 times, regularly, loose, primary branches often elongated, more or less horizontally spread or often somewhat recurved, tips distinctly recurved when mature, apex occasionally closely branched, compact), aseptate or septate (a single septum at the base).

Asci: (2)-3-6 asci per ascocarp, not stipitate (mostly), 45-65 µm long, (30)-35-50 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (3)-4-6-(8) per ascus, ellipsoid or ovoid, 18-28 µm long, 10-16 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched; basal cells 36-64 µm long, 5-8 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: More or less ellipsoid; macroconidial, not branched, 30-49 µm long, 18-25 µm wide; aseptate.

(report generated 04.Okt.2007)