Pleochaeta salicicola R. Y. Zheng & G. Q. Chen

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (02-09-25). Data set reviewer(s): Schubert K. (06-04-05); not revised.

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

Type Information: Basionym: Pleochaeta salicicola R. Y. Zheng & G. Q. Chen. Type: Pleochaeta salicicola R. Y. Zheng & G. Q. Chen.

Taxonomic Literature: Taxonomic notes: +ascomata outer wall cells irregularly angular, 7.5-19 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [574] (1987).

Biogeography: Region(s): China (endemic).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Salix fargesii Burkill; Salix, Salicaceae.

Reproduction Strategy: With sexual (and possible asexual) stages (mostly hypophyllous, sometimes also epiphyllous). Ascocarps: Cleistothecioid, orbicular (shape), forming independently from the host thallus or mycelium, scattered or in loose groups, (.155)-.2-.25-(.29) mm in diam.. Margin: External filaments present (width subequal throughout); uncinate (close), circinate, or sub-helicoid, .25-.5 µm long, 5-8 µm in diameter, hyaline, very numerous, 100-250 per mm², growing on the upper half of the ascocarp (subapical), stiff and straight (and straight, rarely curved to subnodulose; rather), smooth, thin, not ramified, aseptate.

Asci: 16-45 asci per ascocarp, distinctly stipitate, (70)-80-105-(120) µm long, (25)-30-40-(50) µm wide; dehiscence unitunicate.

Ascospores: c. 4 per ascus, spores 3-4-5 per ascus, subglobose, ellipsoid, or ovoid, (19)-23-28-(30.5) µm long, (12.5)-15-18 µm wide; septa absent.

(report generated 04.Okt.2007)