Phyllactinia orbicularis (Ehrenb.) U. Braun
(Beech Mildew, Beech Powdery Mildew)

Taxonomic hierarchy:
SpeciesPhyllactinia orbicularis (Beech Mildew, Beech Powdery 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 orbicularis (Beech Mildew, Beech Powdery Mildew) :
1: Phyllactinia orbicularis (Beech Mildew, Beech Powdery Mildew)
3 Nov 2006 OSGR: SK15 53° 0’ N, 1° 50’ W Vice County: Staffs (VC 39) England
on dead, fallen Beech leaves
Image 1: Cleistothecia - side view - magnifiedImage 2: Cleistothecia - top view - magnifiedImage 3: Cleistothecia - top view - magnified (2)Image 4: Cleistothecia - top view - magnified (3)Image 5: Cleistothecium - side view - magnified
2: Phyllactinia orbicularis (Beech Mildew, Beech Powdery Mildew)
4 Nov 2003 OSGR: SU78 51° 30’ N, 0° 60’ W Vice County: Oxon (VC 23) England
hypophyllous on fallen Beech leaves
Image 1: Fallen leaf with mildewImage 2: Cleistothecia - magnifiedImage 3: Mildew - magnifiedImage 4: Mildew - magnified (2)Image 5: Mildew - magnified (3)Image 6: Mildew on leaf underside - enlargedImage 7: Cleistothecia - microscope low magnificationImage 8: Cleistothecia - microscope low magnification (2)Image 9: Cleistothecium - microscope low magnificationImage 10: Cleistothecium - microscope low magnification (2)Image 11: Cleistothecium - microscope low magnification (3)

Phyllactinia orbicularis (Beech Mildew, Beech Powdery Mildew) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Phyllactinia orbicularis (Beech Mildew, Beech Powdery Mildew)
BioInfoBioInfo (www.bioinfo.org.uk) has 3 host/parasite/foodplant and/or other relationships for Phyllactinia orbicularis (Beech Mildew, Beech Powdery Mildew)
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