Microsphaeropsis hellebori (Cooke & Massee) Aa
(Hellebore Leaf Spot - causative organism)

Taxonomic hierarchy:
Anamorphic SpeciesMicrosphaeropsis hellebori (Hellebore Leaf Spot - causative organism)
Form genusMicrosphaeropsis (a genus of coelomycetes)
FamilyMONTAGNULACEAE (a family of ascomycetes)
OrderPLEOSPORALES (an order of ascomycetes and lichens)
SubclassDOTHIDEOMYCETIDAE (a subclass of fungi)
ClassDOTHIDEOMYCETES (a class of ascomycetes)
SubphylumPEZIZOMYCOTINA (a subphylum of ascomycetes)
PhylumASCOMYCOTA (spore shooters, ascomycete)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Microsphaeropsis hellebori (Hellebore Leaf Spot - causative organism) :
1: Microsphaeropsis hellebori (Hellebore Leaf Spot - causative organism)
27 Mar 2007 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
zoned grey patches on fading leaves of Stinking Hellebore
Image 1: Infected leaves - top sidesImage 2: Infected leaves - under sidesImage 3: Lesion (upper leaf surface) close-up - highly enlargedImage 4: Lesion (upper leaf surface) close-up - highly enlarged (2)Image 5: Lesion (upper leaf surface) close-up - highly enlarged (3)Image 6: Lesion (upper leaf surface) close-up - highly enlarged (4)Image 7: Lesion (upper leaf surface) close-up - highly enlarged (5)Image 8: Lesion (upper leaf surface) close-up - highly enlarged (6)Image 9: Lesion (upper leaf surface) close-up - magnifiedImage 10: Lesion (upper leaf surface) close-up - magnified (2)Image 11: Lesions - top sides - close-upImage 12: Lesions - under sides - close-upImage 13: Conidia - magnifiedImage 14: Conidia - magnified (2)Image 15: Conidia - highly magnifiedImage 16: Conidia - highly magnified (2)Image 17: Pycnidial wall - magnifiedImage 18: Pycnidial wall - highly magnified

Identification Works

AuthorYearTitleSource
Fox, R.T.V. 1994 Fungal foes in your garden no 23: Leaf spot of Hellebores Mycologist Vol 08 (01): 37.
Lane, C. 2010 Hellebore Leaf Blights Plant Clinic News May: 3.
RHS Hellebore leaf spot www.rhs.org.uk/advicesearch/profile.aspx?PID=172

Microsphaeropsis hellebori (Hellebore Leaf Spot - causative organism) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Microsphaeropsis hellebori (Hellebore Leaf Spot - causative organism)
BioInfoBioInfo (www.bioinfo.org.uk) has 15 host/parasite/foodplant and/or other relationships for Microsphaeropsis hellebori (Hellebore Leaf Spot - causative organism)
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