Erysiphe matsunamiana (Y. Nomura, Tanda & U. Braun) U. Braun & S. Takam. [2027269]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-28). Data set reviewer(s): Schubert K. (06-03-01); revised.

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

Type Information: Basionym: Uncinula matsunamiana Y. Nomura, Tanda & U. Braun. Type: Uncinula matsunamiana Y. Nomura, Tanda & U. Braun.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, 17-21 x 13-17 µm;. Braun U., Beih. Nova Hedwigia 89: 1-700 [501] (1987).

Biogeography: Continent: Asia-Temperate. Country or state(s): Japan (only known from the type collection).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Rhus sylvestris Siebold & Zucc.; Rhus, Anacardiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .106-.147 mm in diam.. Margin: External filaments present (146-243 µm long, width increasing upwards); circinate (closely), 1-1.5 µm long, 6-7 µm in diameter, hyaline, few, 11-16 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight (and straight), thin or moderatly thick (below), not ramified, septate (a single septum at the base).

Asci: 10-13 asci per ascocarp, indistinctly stipitate, 59-70 µm long, 36-40 µm wide; dehiscence unitunicate (fairly thick-walled).

Ascospores: c. 8 per ascus, spores 6-(7) per ascus, ellipsoid or ovoid, 19-25 µm long, 11-16 µm wide; septa absent.

(report generated 04.Okt.2007)