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. (00-07-28). Data set reviewer(s): Schubert K. (06-02-28); revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: variety. Synonyms: Uncinula adunca (Wallr. : Fr.) Lév. var. adunca; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Alphitomorpha adunca Wallr. Type: Alphitomorpha adunca Wallr.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal to rounded, ca. 8-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [471-474] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Asia-Temperate (nearly all Asia, all North America: USA, Canada, Alaska), Europe (all), Northern America, and Asia-Tropical. Region(s): Siberia, Far Eastern Asia, and China. Country or state(s): Denmark, Finland, United Kingdom, Norway, Sweden, Austria, former Czechoslovakia (incl. Czech Republic & Slovacia), Germany, Hungary, Poland, Switzerland (incl. Liechtenstein), France (excl. Corsica), Portugal, Spain (incl. Andorra & Monaco), Bulgaria, Italy (incl. San Marino & The Vatican City, excl. Sicily, Sardinia), Romania, European Turkey, Former Yugoslavia [incl. Bosnia and Herzegovina, Croatia, Macedonia, Moldova, Serbia and Montenegro, Slovenia], Belarus, Baltic States (Estonia, Lithuania, Latvia), and Ukraine; Mongolia (Mongolia), Japan, Korea (North & South), and Iran (to Central Asia); India and Pakistan; Alaska (USA), Colarado (USA), Idaho (USA), Montana (USA), Oregon (USA), Washington (USA), Wyoming (USA), Illinois (USA), Iowa (USA), Missouri (USA), North Dakota (USA), Nebraska (USA), South Dakota (USA), Wisconsin (USA), Connecticut (USA), Indiana (USA), Massachusetts (USA), Michigan (USA), New York (USA), California (USA), Texas (USA), Florida (USA), Georgia (USA), Mississippi (USA), and North Carolina (USA). Checklist records: United States and Canada (continental).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Populus cf. nigra L.; Populus, Salicaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .095-.17 mm in diam.. Margin: External filaments present (straight to curved; width subequal throughout or occasionally slightly increasing upwards; apex not enlarged, sometimes even slightly attenuated towards the tip); uncinate, circinate (closely), or sub-helicoid, (.75)-1-2 µm long, 4-11 µm in diameter, hyaline, very numerous, (20)-40-80-(100) per mm², growing more or less between the lower and upper hald of the ascocarp, flexuose or stiff and straight, smooth or somewhat rough (occasionally below), thin (throughout), not ramified, aseptate or septate (rarely a single septum at the base).

Asci: 4-15 asci per ascocarp, not stipitate or indistinctly stipitate, 45-90 µm long, 25-55 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 3-6 per ascus, ellipsoid or ovoid, 18-30.5 µm long, 10-18 µm wide; septa absent.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid, ovoid, or cylindrical; macroconidial (germ tubes at an end of the spore, short, with lobed terminal appressorium), not branched, 24-35 µm long, 12.5-18 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