Erysiphe aspera (Doidge) U. Braun & S. Takam. var. aspera [2013590]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-28). Data set reviewer(s): Schubert K. (06-03-29); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: variety. Synonyms: Uncinula religiosa T. S. Ramakr.; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula aspera Doidge var. aspera. Type: Uncinula aspera Doidge var. aspera.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal to rounded, ca. 8-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [509-511] (1987).

Biogeography: Continent: Africa. Region(s): Southern Africa (South Africa). Country or state(s): Kenya (and Rhodesia).

Ecology: Biotroph; phytopathogenic; growing on leaves, epiphyllous. Host or Phorophyte Taxonomy: Ficus petersii Warb.; Ficus, Moraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .08-.13 mm in diam.. Margin: External filaments present (width gradually increasing upwards or only up to 2/3-3/4 of the stalk, then again decreasing; coiled part not conspicuously enlarged); circinate (loose to mostly close) or sub-helicoid, 1-2 µm long, 3-6.5-(9) µm in diameter, hyaline, numerous, 15-30 per mm², growing between the lower and upper hald of the ascocarp, flexuose, stiff and straight, or geniculate (bent) (sometimes; rarely straight), verrucose (usually, at least below), thin or thick (towards the base), not ramified, aseptate or septate (0-1(-2)-septate).

Asci: 4-6 asci per ascocarp, not stipitate or indistinctly stipitate, 45-75 µm long, 30-45 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (3)-4-6 per ascus, ellipsoid, ovoid, rarely pyriform, or reniform (rarely), 18-35 µm long, 10-22 µm wide; septa absent.

(report generated 04.Okt.2007)