Erysiphe frickii Neger

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-03-23); revised.

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

Type Information: Basionym: Erysiphe frickii Neger. Type: Erysiphe frickii Neger.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells obscure, irregularly polygonal, ca. 6-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [189-190] (1987).

Biogeography: Continent: Southern America. Region(s): Western South America (Andes) (Chile,).

Ecology: Biotroph; phytopathogenic; growing on leaves, mostly epiphyllous or amphigenous. Host or Phorophyte Taxonomy: Geum chilense; Geum, Rosaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, in loose groups or gregarious, .12-.21 mm in diam.. Margin: External filaments present; interlaced with each other, mycelioid, straight, .5-2 µm long, 3-8 µm in diameter, hyaline, numerous, growing all across the lower half of the ascocarp, smooth or usually rough, thin or moderatly thick, not ramified or ramified, irregular, septate (few inconspicuous septa).

Asci: 10-20 asci per ascocarp, not stipitate (seldom) or indistinctly stipitate, 60-90 µm long, 35-55 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (4)-5-6-(7) per ascus, subglobose, ellipsoid, or ovoid, 18-26.5 µm long, 12-18.5 µm wide; septa absent.

(report generated 04.Okt.2007)