Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.

Erysiphe securinegae (F. L. Tai & C. T. Wei) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (00-07-26). Data set reviewer(s): Schubert K. (06-03-27); revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Synonyms: Microsphaera securinegae F. L. Tai & C. T. Wei; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera securinegae F. L. Tai & C. T. Wei. Type: Microsphaera securinegae F. L. Tai & C. T. Wei.

Taxonomic Literature: Taxonomic notes: +conidiophores foot-cells cylindric or somewhat curved to flexuous, followed by (0-)1-2 shorter cells;+ascomata outer wall cells irregularly polygonal, ca. 10-20 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [357-358] (1987).

Biogeography: Continent: Asia-Temperate. Region(s): Far Eastern Asia and China. Country or state(s): Japan.

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Securinega suffruticosa (Pall.) Rehder; Securinega, Euphorbiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered or gregarious, .06-.095 mm in diam.. Margin: External filaments present; not interlaced (horizontally spread), circinate (sometimes nearly; or subhelicoid), helicoid, or recurved (when mature), (2)-5-10-(13) µm long, 3.5-5.5 µm in diameter, hyaline or pigmented (brown), few or numerous, (4)-5-9-(18) per mm², growing all across the lower half of the ascocarp, flexuose, smooth, thin, not ramified or ramified, dichotomously branched (1-5 times, some appandages simple, branchings irregular, diffuse, or branchings more regular, primary branches often elongated, primary and secondary branches sometimes recurved) or irregular, aseptate.

Asci: 3-5-(7) asci per ascocarp, indistinctly stipitate, 30-55 µm long, 30-45 µm wide; dehiscence unitunicate.

Ascospores: c. 4 to c. 8 per ascus, spores (5)-8 per ascus, ellipsoid, ovoid, or oblong, 10-22.5 µm long, 6-12 µm wide; septa absent.

Conidiomata: Present; hyphomycetous.

Conidiophores: Pseudoidium-type (conidiophores erect, foot-cells cylindrical or somewhat curved to flexuous, followed by (0-)1-2 shorter cells); not branched; conidiophore cells 42-61 µm long, basal cells 7-11 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Ovoid or sub-cylindrical; macroconidial, not branched, 19-36 µm long, 9-17 µm wide; aseptate.

(report generated 04.Okt.2007)

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.