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. (06-02-22); revised.

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

Type Information: Basionym: Erysiphe chelones Schwein. Type: Erysiphe chelones Schwein.

Taxonomic Literature: Taxonomic notes: +conidiophores erect, moderately long, about 30-60 x 9.5-11 µm;+appressoria nipple-shaped to moderately lobed;+ascomata outer wall cells obscure, irregularly shaped, ca. 8-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [237] (1987).

Biogeography: Continent: Northern America (USA, especially eastern and southeastern states; Canada; the species occurs wherever the host (Chelone glabra) is grown for ornament).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Chelone sp.; Chelone, Scrophulariaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, in loose groups or gregarious, (.085)-.1-.15-(.175) mm in diam.. Margin: External filaments present; interlaced with each other or interwoven with surrounding mycelium, mycelioid, straight, .5-2 µm long, 4-7 µm in diameter, hyaline or pigmented (later, brown), few or numerous (number variable), growing all across the lower half of the ascocarp, smooth or rough, thin, not ramified, septate.

Asci: 6-15 asci per ascocarp, indistinctly stipitate, 40-75 µm long, 25-40 µm wide; dehiscence unitunicate (asci always immature in the current season, ascospores not developed before overwintering).

Conidiophores: Euoidium-type; not branched. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, ovoid, or doliiform; macroconidial, not branched, 24-39 µm long, 12-19 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