Puccinia urticata F. Kern
(Nettle Clustercup Rust)

Subtaxon Example images Rank Featured
subtaxa		 No of
images		 No of
ID refs
Puccinia urticata var urticae-acutiformis
a nettle clustercup rust
(Click to open)
 		Variety 5 images
Taxonomic hierarchy:
SpeciesPuccinia urticata (Nettle Clustercup Rust)
GenusPuccinia (a genus of rust fungi)
FamilyPUCCINIACEAE (a family of rust fungi)
OrderPUCCINIALES (rust fungi)
ClassPUCCINIOMYCETES (rust fungi etc)
SubphylumPUCCINIOMYCOTINA (rust fungi etc)
PhylumBASIDIOMYCOTA (spore droppers, basidiomycetes)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Puccinia urticata (Nettle Clustercup Rust) :
1: Puccinia urticata (Nettle Clustercup Rust)
19 May 2008 OSGR: NR92 55° 30’ N, 5° 10’ W Vice County: Clyde Islands (VC 100) Scotland

Cluster cups on Nettle

Image 1: Galled Nettle petiole with clustercups - pale backgroundImage 2: Clustercups - highly enlarged - pale backgroundImage 3: Clustercups - highly enlarged - pale background (2)Image 4: Clustercups - highly enlarged - pale background (3)Image 5: Clustercups on galled Nettle petiole - enlarged - pale backgroundImage 6: Clustercups on galled Nettle petiole - enlarged - pale background (2)
2: Puccinia urticata (Nettle Clustercup Rust)
15 May 2005 OSGR: SU68 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Nettle leaf, heavily infected with cluster cups (aecia)
Image 1: Heavily infected Nettle leafImage 2: Heavily infected Nettle leaf - close-upImage 3: Heavily infected Nettle leaf - close-up (2)
3: Puccinia urticata (Nettle Clustercup Rust)
30 Apr 2005 OSGR: SU67 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
aecia on Nettle
Image 1: Heavily infected plants - in situImage 2: Infected leaf - top sideImage 3: Infected leaf - top side (2)Image 4: Infected leaf - under sideImage 5: Infected leaf - under side (2)Image 6: Infection - leaf upper side - close-up - enlargedImage 7: Infection - leaf under side - close-up - enlargedImage 8: Infection - leaf under side - close-up - enlarged (2)Image 9: Infection - leaf under side - close-up - enlarged (3)Image 10: Infection spot - leaf under side - magnifiedImage 11: Infection spot - leaf under side - magnified (2)Image 12: Infection spots - leaf under side - highly enlargedImage 13: Infection spots - leaf under side - highly enlarged (2)Image 14: Aeciospores - magnifiedImage 15: Peridium - magnifiedImage 16: Peridium - microscope low magnificationImage 17: Peridium - microscope low magnification (2)
4: Puccinia urticata (Nettle Clustercup Rust)
25 May 2000 OSGR: SU56 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
on Nettle
Image 1: AeciaImage 2: Aecia - close-upImage 3: Aecia - close-up (2)Image 4: Aecia on petiole and leaf veinImage 5: Infected leavesImage 6: Infection on leaf midribImage 7: AeciosporesImage 8: Aeciospores (2)Image 9: Aeciospores (3)Image 10: Peridium cells
5: Puccinia urticata (Nettle Clustercup Rust)
7 May 1977 OSGR: SU94 51° 10’ N, 0° 40’ W Vice County: Surrey (VC 17) England
on Nettle
Image 1: Aecia - magnifiedImage 2: Aecia - magnified (2)Image 3: Aecia - magnified (3)Image 4: Aecia - highly magnifiedImage 5: Swollen midrib with aecia - magnifiedImage 6: Swollen petioles with aecia - magnified
6: Puccinia urticata (Nettle Clustercup Rust)
18 May 1975 OSGR: SE33 53° 50’ N, 1° 20’ W Vice County: Mid-west Yorks (VC 64) England
on Nettle
Image 1: Lesions with aecia - magnified

Puccinia urticata (Nettle Clustercup Rust) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Puccinia urticata (Nettle Clustercup Rust)
BioInfoBioInfo (www.bioinfo.org.uk) has 59 host/parasite/foodplant and/or other relationships for Puccinia urticata (Nettle Clustercup Rust)

A rust fungus forming aecia (cluster cups) on Urtica, and forming uredia and telia on various species of Carex. There are a number of closely-similar varieties which are restricted to different hosts. It is most often seen as the cluster cups which are very common on Nettle, especially near water. Early records may be included under P. caricina from which it has only recently been separated.

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