Rusts are fungal plant pathogens of the order Pucciniales causing plant fungal diseases.
The Hypocreales are an order of fungi within the class Sordariomycetes. In 2008, it was estimated that it contained some 237 genera, and 2647 species in seven families. Since then, a considerable number of further taxa have been identified, including an additional family, the Stachybotryaceae. Wijayawardene et al. in 2020 added more families and genera to the order. According to the Catalog of Life, As of April 2021 the Hypocreales contains 6 families, 137 genera, and 1411 species. Hyde et al. (2020a) listed 14 families under Hypocreales, while, Wijayawardene et al. (2022) accepted 15 families in the order, where Cylindriaceae was additionally added. Earlier, Hyde et al. (2020a) had placed Cylindriaceae in class Xylariomycetidae. Samarakoon et al. (2022) agreed. Hence, Cylindriaceae should have been excluded from Hypocreales and placed in Xylariomycetidae. Xiao et al. (2022) recently introduced a new family Polycephalomycetaceae to Hypocreales.
The Chaetothyriales are an order of ascomycetous fungi in the class Eurotiomycetes and within the subclass Chaetothyriomycetidae. The order was circumscribed in 1987 by mycologist Margaret Elizabeth Barr-Bigelow.
Puccinia recondita is a fungus species and plant pathogen belonging to the order of Pucciniales and family Pucciniaceae.
Pucciniomycotina is a subdivision of fungus within the division Basidiomycota. The subdivision contains 10 classes, 21 orders, and 38 families. Over 8400 species of Pucciniomycotina have been described - more than 8% of all described fungi. The subdivision is considered a sister group to Ustilaginomycotina and Agaricomycotina, which may share the basal lineage of Basidiomycota, although this is uncertain due to low support for placement between the three groups. The group was known as Urediniomycetes until 2006, when it was elevated from a class to a subdivision and named after the largest order in the group, Pucciniales.
The Arthoniaceae are a family of lichenized, lichenicolous and saprobic fungi in the order Arthoniales. The Arthoniaceae is the largest family of Arthoniales, with around 800 species. Most species in Arthoniaceae belong in Arthonia which is the largest genus with 500 species. The second and third largest genus is Arthothelium with 80 species, and Cryptothecia with 60 species.
The Roccellaceae are a family of fungi in the order Arthoniomycetes. Most taxa are lichenized with green algae, although some are lichenicolous, growing on other lichens.
The Pertusariaceae are a family of lichen-forming fungi in the order Pertusariales.
Pucciniomycetes is a diverse class of fungi in the subphylum Pucciniomycotina of phylum Basidiomycota. The class contains 5 orders, 21 families, 190 genera, and approximately 8,016 species. It has been estimated that this class contains about one third of all teleomorphic basidiomycetes. Pucciniomycetes contains many economically important plant pathogenic fungal rusts; the order Pucciniales is the largest clade in this class, representing approximately 7,000 species.
The Chaconiaceae are a family of rust fungi in the order Pucciniales. The family contained 8 genera and 75 species in 2008. By 2020, there were 8 genera and 84 species.
The Coleosporiaceae are a family of rust fungi in the order Pucciniales. The family contains 6 genera and 131 species. It was updated in 2020, to 7 genera and 173 species.
The Mikronegeriaceae were a family of rust fungi in the order Pucciniales: now incorporated into the Zaghouaniaceae. The family contained 4 genera and 13 species.
Coleosporium is a genus of rust fungi belonging to the family Coleosporiaceae. This diverse genus encompasses approximately 100 distinct species. The lifecycle of these fungi involves aecial stages, during which they parasitize various species of Pinus, while their telial occur on a number of angiosperms.
The Trypetheliales are an order of fungi in the class Dothideomycetes. Most of the species in the order form lichens, although some are lichenicolous fungi. Trypetheliales contains two families, Polycoccaceae and Trypetheliaceae. The order was circumscribed in 2008 by lichenologists Robert Lücking, André Aptroot, and Harrie Sipman.
Caliciales is an order of mostly lichenized fungi in the class Lecanoromycetes. It consists of two families: Caliciaceae and Physciaceae, which together contain 54 genera and more than 1200 species. The order was circumscribed by American botanist Charles Edwin Bessey in 1907.
Pucciniosira is a genus of rust fungi belonging to the family Pucciniosiraceae.
The Gymnosporangiaceae are a family of rust fungus genera, in the order Pucciniales, based on the type genus Gymnosporangium. The classification of fungal taxa based on only morphological characteristics has long been recognised as problematical, so this order was reviewed over a long term study using three DNA loci and published in 2021.
The Zaghouaniaceae are a family of rust fungus genera, some of which have long been considered incertae sedis in the order Pucciniales, based on the type genus Zaghouania. The classification of fungal taxa based on only morphological characteristics has long been recognised as problematical, so this order was reviewed over a long-term study using three DNA loci and published in 2021.
Hemileia is a genus of rust fungi, now placed in the family Zaghouaniaceae, but long considered incertae sedis in the order Pucciniales. This genus has a pan-tropical distribution and includes important crop plant pathogens, such as the causative organism of coffee leaf rust.
The Sphaerophragmiaceae are a family of rust fungus genera in the order Pucciniales, based on the type genus Sphaerophragmium and placed in the suborder Uredinineae.
