Ramularia interstitialis (Berk. & Broome) Gunnerb. & Constant.
(an anamorphic fungus)

Taxonomic hierarchy:
Anamorphic SpeciesRamularia interstitialis (an anamorphic fungus)
Form genusRamularia (a genus of plant-pathogenic anamorphic hyphomycetes)
FamilyMYCOSPHAERELLACEAE (a family of ascomycetes and lichens)
OrderCAPNODIALES (sooty moulds)
SubclassDOTHIDEOMYCETIDAE (a subclass of fungi)
ClassDOTHIDEOMYCETES (a class of ascomycetes)
SubphylumPEZIZOMYCOTINA (a subphylum of fungi)
PhylumASCOMYCOTA (spore shooters, ascomycete)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Ramularia interstitialis (an anamorphic fungus) :
1: Ramularia interstitialis (an anamorphic fungus)
22 May 2008 OSGR: NR93 55° 30' N, 5° 20' W Vice County: Clyde Islands (VC 100) Scotland
leaf-spots on Primrose
Image 1: Infection on underside of leaf - close-up - enlargedImage 2: Infection on underside of leaf - close-up - magnifiedImage 3: Infection on underside of leaf - close-up - magnified (2)Image 4: Infection on underside of leaf - close-up - magnified (3)Image 5: Conidiophores and conidia - squash prep - magnifiedImage 6: Conidiophores and conidia - squash prep - magnified (2)Image 7: Conidiophores and conidia - squash prep - magnified (3)Image 8: Conidiophores and conidia - squash prep - microscope low magnificationImage 9: Conidiophores and conidia - squash prep - microscope low magnification (2)
2: Ramularia interstitialis (an anamorphic fungus)
19 Apr 2007 OSGR: SU67 51° 30' N, 1° 10' W Vice County: Berks (VC 22) England
Yellow leaf spots on Primrose leaves (with white mycelium on underside)
Image 1: Infected leaves (2) - top surfaces - pale backgroundImage 2: Infected leaves (2) - top surfaces - pale background (2)Image 3: Infected leaves (2) - under surfaces - pale backgroundImage 4: Infected leaves (2) - under surfaces - pale background (2)Image 5: Infected leaves (4) - top surfaces - pale backgroundImage 6: Infected leaves (4) - under surfaces - pale backgroundImage 7: Infected leaves (4) - top surfaces - black backgroundImage 8: Infected leaves (4) - under surfaces - black backgroundImage 9: Infection on leaf under surface - highly enlargedImage 10: Infection on leaf under surface - magnifiedImage 11: Infection on leaf under surface - magnified (2)Image 12: Infection patch on leaf under surface - close-up - enlargedImage 13: Infection patch on leaf under surface - close-up - enlarged (2)Image 14: Infection spot on leaf top surface - highly enlargedImage 15: Infection spot on leaf top surface - magnifiedImage 16: Infection spot on leaf under surface - close-up - enlargedImage 17: Infection spots on leaf under surface - close-up - enlargedImage 18: Conidia - magnifiedImage 19: Conidiophore and conidia - magnifiedImage 20: Conidiophore and conidium - magnified
3: Ramularia interstitialis (an anamorphic fungus)
1 May 2002 OSGR: SP50 51° 50' N, 1° 10' W Vice County: Oxon (VC 23) England
on Cowslip
Image 1: Infected leaf - top surfaceImage 2: Infected leaf - under surfaceImage 3: Infection - leaf top surface - magnifiedImage 4: Infection - leaf top surface - magnified (2)Image 5: Infection - leaf under surface - magnifiedImage 6: ConidiaImage 7: Conidiophore
4: Ramularia interstitialis (an anamorphic fungus)
27 Apr 2002 OSGR: SU56 51° 20' N, 1° 20' W Vice County: Berks (VC 22) England
on underside of Primrose leaves
Image 1: Infected leaves - upper sidesImage 2: Infected leaves - undersideImage 3: Infected leaves - underside - enlargedImage 4: Infection - magnifiedImage 5: Infection spots - magnifiedImage 6: Infection spots - upperside - magnifiedImage 7: Collared spore type - highly magnifiedImage 8: Conidia and conidiophores - magnifiedImage 9: Conidia and conidiophores - magnified (2)Image 10: Conidia and conidiophores - magnified (3)Image 11: Conidia and conidiophores - highly magnifiedImage 12: Conidia and conidiophores - highly magnified (2)Image 13: Conidia, conidiophores and collared spore type - highly magnifiedImage 14: Conidia - magnifiedImage 15: Conidia - magnified (2)

Ramularia interstitialis (an anamorphic fungus) may be covered by identification literature listed under the following higher taxa:

BioInfoBioInfo (www.bioinfo.org.uk) has 3 host/parasite/foodplant and/or other relationships for Ramularia interstitialis (an anamorphic fungus)
There are two species of Ramularia on Primula spp.: this and R. primulae.

The present species causes diffuse yellowish patches on the leaf surface while R. primulae causes discrete brown spots.

They also differ in the conidia being 0-septate, 9-20/5-8µm in the present species, and 0-2 septate and 6-40/3-5µm in R. primulae.
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