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

Erysiphe baeumleri (Magnus) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-01-24); revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Microsphaera baeumleri Magnus; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera baeumleri Magnus. Type: Microsphaera baeumleri Magnus.

Taxonomic Literature: Taxonomic notes: +conidia germ tubes at an end, short;+ascocarp outer wall cells irregularly polygonal to rounded, ca. 8-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [296-297] (1987); Braun U., The powdery mildews (Erysiphales) of Europe. - 1-337. Jena, Stuttgart, New York (199.

Biogeography: Continent: Asia-Temperate, Europe, and Northern America (USA, Canada). Region(s): Siberia and China (Central Asia to China). Country or state(s): Finland, United Kingdom, Norway, Sweden, Austria, former Czechoslovakia (incl. Czech Republic & Slovacia), Germany, Hungary, Poland, Switzerland (incl. Liechtenstein), France (excl. Corsica), 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], Belarus, Baltic States (Estonia, Lithuania, Latvia), and Ukraine; Japan.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Vicia sylvatica L.; Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages (horizontally spread, but mostly with a tendency to turn towards one direction). Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, (.07)-.08-.13-(.15) mm in diam.. Margin: External filaments present; interlaced with each other (sometimes loosely), mycelioid or setiform (intermediate type), straight, (2)-3-6-(10) µm long, 5-10.5 µm in diameter, hyaline or pigmented (only at the base, very rarely faintly coloured in the lower half), numerous, 8-20 per mm², growing more or less between the lower and upper hald of the ascocarp, thin or thick (towards the base), not ramified or ramified (a varying percentage of appendages 1-3 times branched, rarely up to 5 times, branchings lax, diffuse, often deeply cleft or forked in the lower half, tips not recurved straight), aseptate or septate (1-2 septa near the base).

Asci: 4-12 asci per ascocarp, not stipitate (sometimes) or indistinctly stipitate, (40)-50-70 µm long, (25)-30-40-(45) µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores (2)-3-5-(6) per ascus, subglobose, ellipsoid, or ovoid, 15-25 µm long, 9-15 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Ellipsoid or cylindrical; macroconidial (germ tubes arising from an end, short), not branched, 30-38 µm long, 13-19 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.