Cymadothea trifolii (Pers.) F.A. Wolf
(Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)

Taxonomic hierarchy:
SpeciesCymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
FamilyMYCOSPHAERELLACEAE (a family of ascomycetes and lichens)
OrderCAPNODIALES (sooty moulds)
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 Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism) :
1: Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
8 Jun 2009 OSGR: SX84 50° 20’ N, 3° 40’ W Vice County: South Devon (VC 3) England
Polythrinium state with black stromata on living and dead leaves of Subterranean Clover
Image 1: Infected leaves - close-upImage 2: Infected leaves - close-up (2)Image 3: Infected shoots - close-up - pale backgroundImage 4: Infected shoots - close-up - pale background (2)Image 5: Infected shoots - close-up - pale background (3)Image 6: Infected shoots - pale backgroundImage 7: Infected leaf - live - close-up - enlargedImage 8: Infected leaf - top surface - close-up - enlargedImage 9: Infected leaves - close-up - enlargedImage 10: Infected leaves - dead - close-up - enlargedImage 11: Infected leaves - dead - close-up - enlarged (2)Image 12: Infected leaves - live - close-up - enlargedImage 13: Infected leaves - live - close-up - enlarged (2)Image 14: Infection - close-up - magnifiedImage 15: Infection - close-up - magnified (2)Image 16: Infection - close-up - magnified (3)Image 17: Infection - on dead leaf - close-up - highly enlargedImage 18: Infection on dead leaf - close-up - magnifiedImage 19: Infection - on live leaf - close-up - highly enlargedImage 20: Conidiophores and conidium - magnified
2: Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
2 Aug 2007 OSGR: SU46 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
Polythrincium anamorph on underside of leaflets of White Clover
Image 1: Infected leaf - top and under surfaces - white backgroundImage 2: Infected leaves - top surfaces - white backgroundImage 3: Infected leaves - top surfaces - white background (2)Image 4: Infected leaves - under and top surfaces - white backgroundImage 5: Infected leaves - under surfaces - white backgroundImage 6: Infected leaves - under surfaces - white background (2)Image 7: Infected leaves - white backgroundImage 8: Infection - magnifiedImage 9: Infection - magnified (2)Image 10: Infection - magnified (3)Image 11: Infection - magnified (4)Image 12: Infection - magnified (5)Image 13: Infection - magnified (6)Image 14: Conidia and conidiophores - magnifiedImage 15: Conidia and conidiophores - magnified (2)Image 16: Conidia and conidiophores - magnified (3)Image 17: Conidia and conidiophores - magnified (4)Image 18: Conidia - magnifiedImage 19: Conidia - magnified (2)Image 20: Conidiophores - magnified
3: Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
23 Oct 2006 OSGR: SN62 51° 50’ N, 4° 0’ W Vice County: Carmarthen (VC 44) Wales
stroma and Polythrincium anamorph on clover leaf
Image 1: Conidiophores and conidia - magnifiedImage 2: Conidiophores - magnifiedImage 3: Stroma wall - magnified

Identification Works

AuthorYearTitleSource
Simon, U.K., Groenewald, J.Z. & Crous, P.W. 2009 Cymadothea trifolii, an obligate biotrophic leaf parasite of Trifolium, belongs to Mycosphaerellaceae as shown by nuclear ribosomal DNA analyses Persoonia Vol 22: 49-55.

Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - 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 Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
BioInfoBioInfo (www.bioinfo.org.uk) has 9 host/parasite/foodplant and/or other relationships for Cymadothea trifolii (Black Blotch or Sooty Blotch Disease Of Clovers - causative organism)
Creative Commons License
This website is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Licence.

Unless otherwise expressly stated, all original material on the BioImages website by Malcolm Storey is licensed under the above Creative Commons Licence.

Photographs from other photographers are used with permission but not included under the above CC licence.

BioImages - Virtual Field-Guide (UK)