Puccinia melanocephala
- Image of the urediniospores.
- http://www.apsnet.org/online/Archive/1998/rust032.htm

Puccinia graminis
- Image showing the two-celled teliospores of this species which causes stem rust of wheat.
- http://www.apsnet.org/online/Archive/2006/PUCCINIA.asp

Phakopsora pachyrhizi
- Microscopic image showing an appressorium arising from a germinating urediniospore.
- http://www.apsnet.org/online/Archive/2006/IW000065.asp

Miyagia pseudosphaeria
- Microscopic image showing the cross section of a uredinium.
- http://www.apsnet.org/online/Archive/PDCoverImages/2003v87/jun_2.asp

Gymnosporangium clavipes
- Information on this pathogen which alternates between two host species, and photograph of it erupting from infected cedar tissue after rain.
- http://www.apsnet.org/online/Archive/2000/iw000013.asp

Puccinia coronata
- Image of teliospores.
- http://www.apsnet.org/online/archive/1998/barley65.htm

Phleogena faginea
- Several enlarged photographs of these minute fungi.
- http://www.grzyby.pl/gatunki/Phleogena_faginea.htm

Puccinia
- Two magnified images of the fruiting bodies of Puccinia species which grow as parasites on foliage.
- http://www.uoguelph.ca/~gbarron/MISC2007/may2007.htm

Sphaerotheca spiraeae
- Photograph and information on this powdery mildew affecting a plant of Meadowsweet, Filipendula ulmaria.
- http://www-biol.paisley.ac.uk/bioref/Fungi_ascomycetes/Sphaerotheca_spiraeae.html

APSnet Image of the week: Gymnosporangium juniperi-virginianae
- Spermogonia of this species that causes cedar-apple rust on the upper side of an apple leaf and aecia of the fungus on the lower side.
- http://www.apsnet.org/online/archive/1998/rust044.htm

Gymnosporangium juniperi-virginianae
- Comprehensive illustrated article by Tom Volk on this rust fungus which is parasitic on the eastern red cedar and the apple tree, alternating between these two hosts.
- http://botit.botany.wisc.edu/toms_fungi/may99.html

Rust Fungi
- A number of photographs of rust infections.
- http://plantbio.berkeley.edu/~bruns/tour/fungi4.html

Yellow Rust
- This disease of cereals is caused by Puccinia striiformis and different forms affect wheat and barley. Photographs and information on its life cycle.
- http://www.hgca.com/hgca/wde/diseases/Yellow%20rust/Yrcyc.html

Brown Rust
- Photographs and information on the life cycle of Puccinia tritcina which affects wheat, barley, rye and grasses.
- http://www.hgca.com/hgca/wde/diseases/Brown%20rust/brcyc.html

Black Stem Rust
- Photographs and information on the life cycle of Puccinia graminis which affects wheat, barley and other grasses.
- http://www.hgca.com/hgca/wde/diseases/BSRust/Bsrucyc.html

Rust
- Information from Wikipedia on the Uredinales, plant parasites which mainly cause foliar infections.
- http://en.wikipedia.org/wiki/Uredinales

Cronartiaceae
- Photographs of members of this family of heteroecious rusts which have two alternating hosts, typically a pine and a flowering plant.
- http://www.forestryimages.org/browse/family.cfm?id=150

Puccinia antirrhini (Snapdragon Rust)
- Several photographs of this species which infects antirrhinums, and microscopic images of the uredospores.
- http://www.bioimages.org.uk/html/R159680.HTM

Milesina dieteliana
- Photographs of this rust fungus which infects ferns, and magnified images of the uredospores.
- http://www.bioimages.org.uk/html/R159169.HTM

Cumminsiella mirabilissima
- Many photographs, some enlarged or magnified, of this rust fungus.
- http://www.bioimages.org.uk/html/R150950.HTM

Coleosporium tussilaginis (a rust fungus)
- Photographs of this species, some enlarged, growing on the underside of leaves and magnified images of the uredospores.
- http://www.bioimages.org.uk/html/R150267.HTM