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

Erysiphe circaeae L. Junell

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-03-22); revised.

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

Type Information: Basionym: Erysiphe circaeae L. Junell.

Taxonomic Literature: Taxonomic notes: +conidiophores foot-cells straight, curved or slightly flexuous, nearly cylindric, followed by 1-2 cells, the second cell is shorter, longer or about as long as the foot-cell, the third cell is always shorter than the foot-cell;+appressoria lobed;+ascocarp outer wall cells irregularly polygonal, ca. 10-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [207-208] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Asia-Temperate, Australasia, and Europe. Region(s): Far Eastern Asia and Australia (introduced). Country or state(s): Denmark, United Kingdom, Norway, Sweden, Austria, Benelux (Belgium & Luxembourg), former Czechoslovakia (incl. Czech Republic & Slovacia), Germany, Hungary, Netherlands, Poland, Switzerland (incl. Liechtenstein), France (excl. Corsica), Portugal, Spain (incl. Andorra & Monaco), Bulgaria, Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia), Romania, Former Yugoslavia [incl. Bosnia and Herzegovina, Croatia, Macedonia, Moldova, Serbia and Montenegro, Slovenia], and Ukraine.

Ecology: Biotroph; phytopathogenic; growing on stems or leaves, amphigenous. Host or Phorophyte Taxonomy: Circaea lutetiana L.; Circaea, Onagraceae.

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 (rather coarse, very irregularly shaped); mycelioid, straight, .5-3 µm long, 4-9 µm in diameter, hyaline or pigmented (when mature), few, growing all across the lower half of the ascocarp, smooth, thin, not ramified or ramified, irregular, septate.

Asci: (2)-3-5-(6) asci per ascocarp, not stipitate or indistinctly stipitate, 45-65 µm long, 30-40 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores 3-5 per ascus, ellipsoid or ovoid, 18-23 µm long, 10-12 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched; basal cells 25-35 µm long, 6-9 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: More or less ellipsoid; macroconidial, not branched, 30-46 µm long, 14-20 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.