Phyllactinia fraxini (DC.) Fuss
(Ash Mildew)

Taxonomic hierarchy:
SpeciesPhyllactinia fraxini (Ash Mildew)
GenusPhyllactinia (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 Phyllactinia fraxini (Ash Mildew) :
1: Phyllactinia fraxini (Ash Mildew)
11 Oct 2009 OSGR: SU22 51° 0’ N, 1° 40’ W Vice County: South Wilts (VC 8) England
hypophyllous, on Ash leaves
Image 1: Infected leaflets - top surfaces - black backgroundImage 2: Infected leaflets - top surfaces - black background (2)Image 3: Infected leaflets - under surfaces - black backgroundImage 4: Infected leaflets - under surfaces - black background (2)Image 5: Infected leaflet - top surface - close-up - black backgroundImage 6: Infected leaflet - top surface - close-up - black background (2)Image 7: Infected leaflet - under surface - close-up - black backgroundImage 8: Infected leaflet - under surface - close-up - black background (2)Image 9: Cleistothecia on leaf under surface - magnifiedImage 10: Cleistothecia on leaf under surface - magnified (2)Image 11: Cleistothecia on leaf under surface - magnified (3)Image 12: Cleistothecia on leaf under surface - magnified (4)Image 13: Cleistothecia on leaf under surface - magnified (5)Image 14: Cleistothecia on leaf under surface - magnified (6)Image 15: Cleistothecia on leaf under surface - magnified (7)Image 16: Cleistothecia on leaf under surface - magnified (8)Image 17: Cleistothecia on leaf under surface - magnified (9)Image 18: Cleistothecia on under surface of leaf - close-up - enlargedImage 19: Cleistothecia on under surface of leaf - close-up - enlarged (2)Image 20: Infected leaf - top surface - white backgroundImage 21: Infected leaf - top surface - white background (2)Image 22: Infected leaf - under surface - white backgroundImage 23: Infected leaf - under surface - white background (2)Image 24: Cleistothecia - microscope low magnificationImage 25: Cleistothecia - microscope low magnification (2)Image 26: Cleistothecia - squash prep - microscope low magnificationImage 27: Cleistothecium - microscope low magnificationImage 28: Cleistothecium showing bases of support hyphae - microscope low magnification
2: Phyllactinia fraxini (Ash Mildew)
2 Oct 1997 OSGR: SU67 51° 30’ N, 1° 0’ W Vice County: Berks (VC 22) England
on underside of ash leaves
Image 1: Infected leafletsImage 2: Infection

Phyllactinia fraxini (Ash Mildew) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Phyllactinia fraxini (Ash Mildew)
BioInfoBioInfo (www.bioinfo.org.uk) has 2 host/parasite/foodplant and/or other relationships for Phyllactinia fraxini (Ash Mildew)
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