Erysiphe picrasmicola U. Braun & S. Takam. [2000177]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-03-02); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Erysiphe picrasmae (Homma) U. Braun & S. Takam.; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Uncinula picrasmae Homma. Type: Uncinula picrasmae Homma.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells polygonal, ca. 6-15 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [525-526] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Picrasma quassioides Benn.; Picrasma, Simaroubaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .075-.12 mm in diam.. Margin: External filaments present; circinate or sub-helicoid (closely), 1.5-2 µm long, 6-10 µm in diameter, hyaline or pigmented (yellowish at the base, sometimes faintly brown at the very base), few or numerous, 10-25 per mm², growing between the lower and upper hald of the ascocarp, flexuose, smooth, thin or thick (towards the base), not ramified, aseptate or septate (0-2-septate).

Asci: 4-6 asci per ascocarp, not stipitate or indistinctly stipitate, 45-60 µm long, 35-50 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-8 per ascus, ellipsoid or ovoid, 13-22 µm long, 8-12 µm wide; septa absent.

(report generated 04.Okt.2007)