Melampsora populnea (Pers.) P. Karst.
(pine twisting rust, dog's mercury rust)

Taxonomic hierarchy:
SpeciesMelampsora populnea (pine twisting rust, dog's mercury rust)
GenusMelampsora (a genus of rust fungi)
FamilyMELAMPSORACEAE (a family of rust fungi)
OrderPUCCINIALES (rust fungi)
ClassPUCCINIOMYCETES (pucciniomycete fungi)
SubphylumPUCCINIOMYCOTINA (a subphylum of fungi)
PhylumBASIDIOMYCOTA (spore droppers)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust) :
1: Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust)
11 Oct 2009 OSGR: SU22 51° 0' N, 1° 40' W Vice County: South Wilts (VC 8) England
hypophyllous telia (and a few uredia), on Aspen leaves
Image 1: Infected leaf - top surface - close-up - black backgroundImage 2: Infected leaf - top surface - close-up - black background (2)Image 3: Infected leaf - under surface - close-up - black backgroundImage 4: Infected leaf - under surface - close-up - black background (2)Image 5: Infected leaves - top surfaces - black backgroundImage 6: Infected leaves - top surfaces - black background (2)Image 7: Infected leaves - under surfaces - black backgroundImage 8: Infected leaves - under surfaces - black background (2)Image 9: Infected leaf (base) - top surface - close-up - enlargedImage 10: Infected leaf (base) - under surface - close-up - enlargedImage 11: Infected leaf (central area) - top surface - close-up - enlargedImage 12: Infected leaf (tip) - top surface - close-up - enlargedImage 13: Infected leaf (tip) - under surface - close-up - enlargedImage 14: Infected leaf - under surface - close-up - enlargedImage 15: Leaf top surface - necrotic area over telia - magnifiedImage 16: Leaf top surface - yellow spots  - magnifiedImage 17: Leaf top surface - yellow spots - magnifiedImage 18: Leaf under surface with telia (mainly) - magnifiedImage 19: Leaf under surface with telia and a few uredia - magnifiedImage 20: Leaf under surface with telia and a few uredia - magnified (2)Image 21: Leaf under surface with telia and a uredium - magnifiedImage 22: Leaf under surface with telia and one uredium - magnifiedImage 23: Leaf under surface with telia and two or three uredia - magnifiedImage 24: Leaf under surface with telia and two uredia - magnifiedImage 25: Leaf under surface with telia - magnifiedImage 26: Leaf under surface with telia - magnified (2)Image 27: Telium squash showing teliospores - magnifiedImage 28: Telium squash showing teliospores - magnified (2)Image 29: Telium - surface view showing outlines of packed teliospores - magnifiedImage 30: Uredoparaphyses - magnifiedImage 31: Uredospores - magnifiedImage 32: Uredospores - magnified (2)
2: Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust)
3 Sep 2007 OSGR: SK19 53° 30' N, 1° 40' W Vice County: Derby (VC 57) England
Uredia on Aspen leaves
Image 1: Infected foliageImage 2: Infected foliage (2)Image 3: Infected foliage (3)Image 4: Infected leaves - top surfacesImage 5: Infected leaves - top surfaces (2)Image 6: Infected leaves - under surfacesImage 7: Infected leaves - under surfaces (2)Image 8: Leaf top surface - pale backgroundImage 9: Leaf under surface - pale backgroundImage 10: Leaf top surface above uredia - close-up - highly enlargedImage 11: Leaf top surface above uredia - close-up - highly enlarged (2)Image 12: Leaf top surface above uredia - close-up - magnifiedImage 13: Leaf top surface above uredia - close-up - magnified (2)Image 14: Uredia - close-up - highly enlargedImage 15: Uredia - close-up - highly enlarged (2)Image 16: Uredia - close-up - magnifiedImage 17: Uredia - close-up - magnified (2)Image 18: Uredia - close-up - magnified (3)Image 19: Uredoparaphyses - magnifiedImage 20: Uredoparaphyses - magnified (2)Image 21: Uredoparaphyses - highly magnifiedImage 22: Uredoparaphyses - highly magnified (2)Image 23: Uredoparaphysis - magnifiedImage 24: Uredoparaphysis - highly magnifiedImage 25: Uredospores - magnifiedImage 26: Uredospores - highly magnifiedImage 27: Uredospores - highly magnified (2)
3: Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust)
19 Apr 2007 OSGR: SU67 51° 30' N, 1° 10' W Vice County: Berks (VC 22) England
Aecia and pycnia on Dog's Mercury leaf
Image 1: Infected leaf - undersideImage 2: Aecia - magnifiedImage 3: Aecia - magnified (2)Image 4: Infection - leaf upperside - close-up - enlargedImage 5: Infection - leaf underside - close-up - enlargedImage 6: Pycnia - on leaf top surface - magnifiedImage 7: Pycnia - on leaf top surface - magnified (2)Image 8: Pycnia - on leaf top surface - magnified (3)
4: Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust)
19 Apr 2007 OSGR: SU67 51° 30' N, 1° 10' W Vice County: Berks (VC 22) England
Pycnia, surrounded by aecia on green parts of Dog's Mercury
Image 1: Infected plant - in situImage 2: Infected plant - in situ (2)Image 3: Infected plant - black backgroundImage 4: Infected plant - black background (2)Image 5: Pycnia - on leaf top surface - magnifiedImage 6: Aeciospores and peridial cells - magnifiedImage 7: Aeciospores and peridial cells - magnified (2)Image 8: Aeciospores and peridial cells - profile view - magnifiedImage 9: Aeciospores and peridial cells - profile view - magnified (2)Image 10: Aeciospores and peridial cells - surface view - magnifiedImage 11: Aeciospores and peridial cells - surface view - magnified (2)Image 12: Aeciospores - profile view - magnifiedImage 13: Aeciospores - surface view - magnifiedImage 14: Pycnium squash prep - magnifiedImage 15: Pycnium squash prep - magnified (2)

Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust) may be covered by identification literature listed under the following higher taxa:

BioInfoBioInfo (www.bioinfo.org.uk) has 43 host/parasite/foodplant and/or other relationships for Melampsora populnea (Pine Twisting Rust, Dog's Mercury Rust)
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