Franz Unger

Uromyces is a genus of rust fungi in the family Pucciniaceae. The genus was described by Franz Unger in his 1833 work Die Exantheme der Pflanzen. They have a worldwide distribution but large occurrences happen in North America and Europe. The genus is the second-largest plant pathogenic rust genus, which is responsible for various plant affecting diseases, and it has major effects on both agricultural and non-agricultural plants. The genus is generally characterized by its unicellular teliospores (thick-walled resting spores) that help to characterize it and distinguish it from another

Ramularia is a genus of ascomycete fungi. Its species, which are anamorphs of the genus Mycosphaerella, are plant pathogens. Economically important host species include Narcissus, sugar beet, and barley. Ramularia species are hyphomycetes with simple morphology; other genera are frequently mistaken for Ramularia. As of 2024, almost 800 species are recognised in the genus Ramularia.

Chrysomyxa is a genus of rust fungi in the family Coleosporiaceae. The genus, widespread in the Northern Hemisphere, contains about 23 species. Rust fungi in the genus Chrysomyxa occur in boreal forests of the northern hemisphere on Pinaceae, (mostly Picea), and most species alternate to angiosperm hosts in the Ericaceae.

Protomyces macrosporus is an ascomycete fungus that forms galls on Aegopodium podagraria, Anthriscus sylvestris, Angelica sylvestris, Daucus carota and some other members of the family Umbelliferae or Apiaceae, commonly known as umbellifers. Fourteen genera within the Asteraceae are also galled by P. macrosporus. The description of the genus was based on Protomyces macrosporus as the type genus for the family Protomycetaceae.

Chrysomyxa abietis, or spruce needle rust, is a species of rust fungi in the Coleosporiaceae family that is native to eastern Europe (including Siberia) and northern Asia. It was introduced to Australia, New Zealand and the United States.

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