Erysiphe maackii (R. Y. Zheng & G. Q. Chen) U. Braun & S. Takam. [2023280]

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-03-01); revised.

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

Type Information: Basionym: Uncinula maackiae R. Y. Zheng & G. Q. Chen. Type: Uncinula maackiae R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 5-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [532-534] (1987).

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

Ecology: Biotroph; phytopathogenic; growing on leaves, hypophyllous. Host or Phorophyte Taxonomy: Maackia sp.; Maackia, Leguminosae-Papilionoideae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered, .105-.12 mm in diam.. Margin: External filaments present (straight to curved, width uniform throughout or slightly narrowing towards the apex); uncinate (close) or circinate, 1-1.5 µm long, 4.3-6.3-(7) µm in diameter, hyaline or pigmented (yellowish below), numerous, 25-35 per mm², growing between the lower and upper hald of the ascocarp, verrucose, thin or thick (towards the base), not ramified, aseptate or septate (0-1-septate).

Asci: 7-10 asci per ascocarp, indistinctly stipitate, 45-70 µm long, 28-35 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, spores 6-7-(8) per ascus, ellipsoid (oblong-) or ovoid, 17.8-22.9 µm long, 9.6-11.9 µm wide; septa absent; wall pale brown (faintly yellowish).

(report generated 04.Okt.2007)