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. (00-07-26). Data set reviewer(s): Schubert K. (06-03-27); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Microsphaera rhamnicola Y. N. Yu; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera rhamnicola Y. N. Yu. Type: Microsphaera rhamnicola Y. N. Yu.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 7-17 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [391] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): China (only known from the type collection).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Rhamnus rugulosa Hemsl.; Rhamnus, Fagaceae and Rhamnaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .052-.083 mm in diam.. Margin: External filaments present (straight to curved); not interlaced, recurved (tips of the ultimate branchlets acuminate to obtuse, inflated, digitate or recurved), 1-1.5-(1.8) µm long, 7-10 µm in diameter, hyaline or pigmented (brown at the base), few, 3-6 per mm², stiff and straight (to curved), smooth, thin (above, thick-walled (3) towards the base) or thick, ramified, dichotomously branched ((2-)5-6 times, regularly branched, branchings rarely trichotomous (3), occasionallysomewhat irregular, tips of the ultimate branchlets acuminate to obtuse, inflated, digitate or recurved) or trichotomously branched, aseptate or septate (rarely, 1-2-septate).

Asci: 2-4 asci per ascocarp, not stipitate or indistinctly stipitate, 39-59 µm long, 29-44 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 7 per ascus, ellipsoid or ovoid, 13-20 µm long, 7-12 µm wide; septa absent.

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