Erysiphe flexuosa (Peck) U. Braun & S. Takam.
(a powdery mildew)

Taxonomic hierarchy:
SpeciesErysiphe flexuosa (a powdery mildew)
GenusErysiphe (a genus of powdery mildews)
FamilyERYSIPHACEAE (powdery mildews)
OrderERYSIPHALES (powdery mildews)
SubclassLEOTIOMYCETIDAE (powdery mildews)
ClassLEOTIOMYCETES (a class of fungi)
SubphylumPEZIZOMYCOTINA (a subphylum of ascomycetes)
PhylumASCOMYCOTA (spore shooters, ascomycete)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Erysiphe flexuosa (a powdery mildew) :
1: Erysiphe flexuosa (a powdery mildew)
5 Sep 2007 OSGR: SK37 53° 20’ N, 1° 30’ W Vice County: Derby (VC 57) England
mildew on horse chestnut
Image 1: Infected leaf - top view - pale brackgroundImage 2: Infected leaf - under side - pale brackgroundImage 3: Cleistothecia - on leaf top surface - magnifiedImage 4: Cleistothecia - on leaf top surface - magnified (2)Image 5: Cleistothecia - on leaf under surface - magnifiedImage 6: Cleistothecia - on leaf under surface - magnified (2)Image 7: Cleistothecia - on leaf under surface - magnified (3)Image 8: Infected leaf - top surface - close-up - enlargedImage 9: Infected leaf - top surface - close-up - enlarged (2)Image 10: Infected leaf - under surface - close-up - enlargedImage 11: Infected leaf - under surface - close-up - enlarged (2)Image 12: Appendages - magnifiedImage 13: Cleistothecia - microscope low magnificationImage 14: Cleistothecia - microscope low magnification (2)Image 15: Cleistothecium - bursting to release spores - magnifiedImage 16: Cleistothecium - bursting to release spores - microscope low magnificationImage 17: Cleistothecium - microscope low magnificationImage 18: Cleistothecium - microscope low magnification (2)Image 19: Conidia - magnifiedImage 20: Conidia - highly magnifiedImage 21: Equatorial appendages - magnifiedImage 22: Equatorial appendages on cleistothecium squash - magnifiedImage 23: Equatorial appendages on cleistothecium squash - magnified (2)Image 24: Equatorial appendages on cleistothecium squash - magnified (3)

Identification Works

AuthorYearTitleSource
Henrici, A. 2004 Notes and Records (Jan 2004) Field Mycology Vol 5 (1): 28-30,33.
Ing, B. & Spooner, B. 2002 The Horse Chestnut powdery mildew Uncinula flexuosa in Europe (New British Record 210) Mycologist Vol 16 (3): 112-113.
Kiss, L. 2005 Powdery mildews as invasive plant pathogens: new epidemics caused by two North American species in Europe Mycol. Res. Vol 109 (3): 259-260.

Erysiphe flexuosa (a powdery mildew) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Erysiphe flexuosa (a powdery mildew)
BioInfoBioInfo (www.bioinfo.org.uk) has 11 host/parasite/foodplant and/or other relationships for Erysiphe flexuosa (a powdery mildew)
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