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Typhulochaeta alangii Y. N. Yu & Y. Q. Lai

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-31). Data set reviewer(s): Schubert K. (06-04-05); revised.

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

Type Information: Basionym: Typhulochaeta alangii Y. N. Yu & Y. Q. Lai. Type: Typhulochaeta alangii Y. N. Yu & Y. Q. Lai.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly polygonal, ca. 7-15 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [554] (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: Alangium sp.; Alangium, Alangiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages (156-177 µm in diam.). Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or in loose groups, .156-.177 mm in diam.. Margin: External filaments present (special apical cells clavate); straight, .4 µm long, 14-22 µm in diameter, hyaline, numerous, 100-130 per mm², growing on the upper half of the ascocarp (circularly arranged), not ramified, aseptate.

Asci: 8-17 asci per ascocarp, clavate, distinctly stipitate, 83-108 µm long, 34-49 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores (6)-7-8 per ascus, ellipsoid, ovoid, or oblong-obtuse, 20-29 µm long, 12-18 µm wide; septa absent; wall pale brown (yellowish).

Conidiomata: Absent resp. not observed.

(report generated 04.Okt.2007)

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