Ustilago violacea
- Photograph and information on this smut, seen here infecting flowers of Ragged Robin, Lychnis flos-cuculi.
- http://www-biol.paisley.ac.uk/bioref/Fungi_basidiomycetes/Ustilago_violacea.html

Bunt or Stinking Smut
- Tilletia tritici causes this infection in wheat. Photographs and information on this fungus.
- http://www.hgca.com/hgca/wde/diseases/Bunt/buntcyc.html

Flag Smut
- Urocystis agropyri can affect wheat and other grass species, the plants affected being severely stunted. Photographs and information on this fungus.
- http://www.hgca.com/hgca/wde/diseases/Flag%20smut/Flagcyc.html

Loose Smut
- Ustilago nuda is the infective organism in this condition which affects wheat. Photographs and information.
- http://www.hgca.com/hgca/wde/diseases/Loossmut/Lsmcyc.html

APSnet Image of the week: Tilletia controversa
- Microscopic image of teliospores of this species which is commonly known as the dwarf bunt fungus.
- http://www.apsnet.org/online/archive/1998/barley81.htm

Ustilago maydis
- Photographs of maize infected by this species.
- http://www.pilzepilze.de/galerie/v/Lateinisch/U/ustilago/maydis/

Ustilago tritici
- Microscopic image.
- http://www.dipbot.unict.it/sistematica/Ustilago.html

Exobasidium vaccinii
- Several photographs of foliage affected by this species. Text in Polish.
- http://www.grzyby.pl/gatunki/Exobasidium_vaccinii.htm

Ustilaginales
- Information from Wikipedia on this order of fungi, members of which are serious plant pathogens and commonly called smuts.
- http://en.wikipedia.org/wiki/Ustilaginales