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

The description has been generated directly from a database. In cases of errors and insufficiencies consult the corresponding LIAS data entry and revision forms to make the necessary modifications. Changes will appear in the subsequent update of data entry forms and natural language descriptions. [To verify the actual status of the pages, select the reload frame function in the context menu!]
These pages are XHTML compatible designed. May be that problems arise with older web browser versions.

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

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Golovinomyces galii (S. Blumer) V. P. Gelyuta; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe galii S. Blumer. Type: Erysiphe galii S. Blumer.

Taxonomic Literature: Taxonomic notes: +conidiophores erect, foot-cells straight, cylindric, followed by 1-3 shorter cells;+appressoria nipple-shaped to lobed, lobed ones dominant;+ascocarp outer wall cells obscure, irregularly shaped, ca. 8-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [239-240] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Africa, Asia-Temperate, and Europe. Region(s): Northern Africa, Middle Asia, and China. Country or state(s): Denmark, Finland, United Kingdom, Norway, Sweden, former Czechoslovakia (incl. Czech Republic & Slovacia), Germany, Hungary, Poland, Switzerland (incl. Liechtenstein), Balearic Islands, France (excl. Corsica), Spain (incl. Andorra & Monaco), Bulgaria, Romania, European Turkey, Former Yugoslavia [incl. Bosnia and Herzegovina, Croatia, Macedonia, Moldova, Serbia and Montenegro, Slovenia], Belarus, Baltic States (Estonia, Lithuania, Latvia), and Ukraine; Canary Islands (Spain).

Ecology: Biotroph; phytopathogenic; growing on stems, leaves, or fruits, amphigenous. Host or Phorophyte Taxonomy: Galium aparine L.; Galium, Rubiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, (.08)-.1-.14-(.16) mm in diam.. Margin: External filaments present (length variable, sometimes poorly developed, very short, shorter than the cleistothecial diam., or well developed); interlaced with each other (differentiation between mycelium and appendages difficult) or interwoven with surrounding mycelium, mycelioid, straight, up to 2 µm long, 3.5-7.5 µm in diameter, hyaline or faintly pigmented (later), few or numerous (number variable, sometimes poorly developed), growing all across the lower half of the ascocarp, smooth or rough, thin, not ramified, septate.

Asci: 4-12 asci per ascocarp, not stipitate or indistinctly stipitate, (35)-50-60-(75) µm long, 25-40 µm wide; dehiscence unitunicate (ascospores usually not developed in samples of the current season, asci immature, development of the spores after overwintering).

Ascospores: 1–2 or c. 4 per ascus, spores 2-4 per ascus, subglobose, ellipsoid, or ovoid, 16-21 µm long, 10-12 µm wide; septa absent.

Conidiophores: Euoidium-type; not branched; basal cells 50-70 µm long, 10-14 µm wide. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, ovoid, doliiform, or sub-cylindrical; macroconidial (conidia length and width measured on fresh material), not branched, (20)-24-35 µm long, 13-17 µm wide; aseptate.

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.

LIAS Home