Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.

Erysiphe nothofagi (Thaxt.) U. Braun & S. Takam. [2000039]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-28). Data set reviewer(s): Schubert K. (06-03-02); revised.

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

Type Information: Basionym: Uncinula nothofagi Thaxt. Type: Uncinula nothofagi Thaxt.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells conspicuous, ca. 10-30 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [507-508] (1987).

Biogeography: Continent: Southern America (Chile).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Nothofagus antarctica var. bicrenata Macloskie; Nothofagus, Fagaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, .07-.105 mm in diam.. Margin: External filaments present (usually shorter than the cleistothecial diam. or about as long as the diam., upper part spirally twisted, ca. 3-8 turns, tips coiled, enlarged); helicoid, .8-1 µm long, 5-8-(10) µm in diameter, hyaline or pigmented (brown from the base to the helicoid part, paler or hyaline towards the tip), few, 5-15 per mm², growing between the lower and upper hald of the ascocarp, stiff and straight, smooth or faintly rough, thin or thick (towards the base), not ramified, aseptate or septate (0-1-septate).

Asci: 4-9 asci per ascocarp, not stipitate or indistinctly stipitate, 45-55 µm long, 35-45 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-8 per ascus, ellipsoid or ovoid, 18-23 µm long, 10-13 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Cylindrical; macroconidial, not branched, 25-32 µm long, 10-15 µm wide; aseptate.

(report generated 04.Okt.2007)

In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.