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

Podosphaera euphorbiae (Castagne) U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item. Data set author(s): Kainz C. (02-02-26). Data set not revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Sphaerotheca euphorbiae (Cast.) Salmon; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Botrytis euphorbiae Cast.

Taxonomic Literature: Taxonomic notes: +conidiophores foot cells cylindric, straight, followed by 1-3

shorter cells;
+appressoria nipple shaped;
+secondary mycelium
pannose, a brown felt, consisting of coloured, coarse,
flexuous hyphae, walls thick, ca. 3-5 µm
+ascoc. outer
cell walls obscure, irregularly polygonal, 8-
20 µm diam.;.
Braun U., Beih. Nova Hedwigia 89: 1-700 [108-110] (1987); Braun U., The powdery mildews (Erysiphales) of Europe.- 1-337. Jena, Stuttgart, New York (1995).

Biogeography: Continent: Africa, Asia-Temperate, Australasia (needs confirmation), and Europe. Region(s): Siberia (and Central Asia).

Ecology: Biotroph; phytopathogenic; growing on stems or leaves, amphigenous. Host or Phorophyte Taxonomy: Euphorbiaceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, forming independently from the host thallus or mycelium, not emerging, .08-.105 mm in diam.. Margin: Interlaced with each other, mycelioid (narrow), .5-2 µm long, hyaline or faintly pigmented (brown), few (mostly), growing all across the lower half of the ascocarp, smooth or rough, not branched, septate.

Asci: 1 asci per ascocarp, 80-100 µm long, 50-80 µm wide; dehiscence unitunicate.

Ascospores: c. 8 per ascus, ellipsoid or ovoid, (16)-18-28 µm long, 10-18 µm wide.

Conidiophores: Basal cells 30-85 µm long, 9-11 µm wide. Conidium Formation: Conidiogenous cells in chains. Conidia: Ellipsoid, nearly cylindrical (often), or ovoid; (20)-24-34 µm long, 12.5-16.5-(18) µm wide.

(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.