Erysiphe thermopsis R. Y. Zheng & G. Q. Chen

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. Data set reviewer(s): Schubert K. (06-03-27); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe thermopsis R. Y. Zheng & G. Q. Chen. Type: Erysiphe thermopsis R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells irregularly polygonal, 6-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [229-230] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): Far Eastern Asia and China.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Thermopsis lanceolata R. Br.; Thermopsis, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, in loose groups, .08-.12 mm in diam.. Margin: External filaments present (often unequal in length in different ascocarps, but subequal in the same fruit body, generally subuniform in width, apex somewhat pointed or obtuse); mycelioid, straight, .5-1.5-(2) µm long, 5-10.5 µm in diameter, hyaline or pigmented (sometimes yellowish, rarely faintly brown at the base), numerous, 10-30 per mm², growing all across the lower half of the ascocarp, stiff and straight (often recurved, rarely substraight) or sub-geniculate (bent) (very rarely), verrucose, thin or moderatly thick (towards the base), not ramified, aseptate or septate (0-1(-2)-septate).

Asci: (4)-6-10 asci per ascocarp, sub-globose or broadly clavate (more or less ovate or somewhat irregular), not stipitate or indistinctly stipitate, 35-70 µm long, 25-45 µm wide; dehiscence unitunicate.

Ascospores: 1–2 or c. 4 per ascus, spores (2)-3-5 per ascus, ovoid (to ovoid-oblong), 16-25 µm long, 9-14-(15) µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type; not branched. Conidium Formation: Conidiogenous cells single. Conidia: Sub-cylindrical; macroconidial, not branched, 25-35 µm long, 13-18 µm wide; aseptate.

(report generated 04.Okt.2007)