Ustilago is a genus of approximately 200 smut fungi, which are parasitic on grasses. 170 species are accepted by Wijayawardene et al. 2020; After phylogenetic research certain species in Ustilago, Macalpinomyces, and other genera in the Ustilaginaceae clade have been moved to other genera like Mycosarcoma.
Dothideomycetes is the largest and most diverse class of ascomycete fungi. It comprises 11 orders 90 families, 1,300 genera and over 19,000 known species. Wijayawardene et al. in 2020 added more orders to the class.
Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci of the Lecanoromycetes most often release spores by rostrate dehiscence.
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.
Agaricomycotina is one of three subdivisions of the Basidiomycota, and represents all of the fungi which form macroscopic fruiting bodies. Agaricomycotina contains over 30,000 species, divided into three classes: Tremellomycetes, Dacrymycetes, and Agaricomycetes. Around 98% of the species are in the class Agaricomycetes, including all the agarics, bracket fungi, clavarioid fungi, corticioid fungi, and gasteroid fungi. Tremellomycetes contains many basidiomycete yeasts and some conspicuous jelly fungi. Dacrymycetes contains a further group of jelly fungi. These taxa are founded on molecular research, based on cladistic analysis of DNA sequences, and supersede earlier morphology-based classifications. Agaricomycotina contains nearly one third of all described species of fungi.
The Botryosphaeriales are an order of sac fungi (Ascomycetes), placed under class Dothideomycetes. Some species are parasites, causing leaf spot, plant rot, die-back or cankers, but they can also be saprophytes or endophytes. They occur world-wide on many hosts. For example, in China, infections related to Botryosphaeriales have been recorded on numerous hosts such as grapes, Caragana arborescens,Cercis chinensis, Eucalyptus, Chinese hackberry, blueberry, forest trees, and various other woody hosts.
The Acarosporales are an order of fungi in the class Lecanoromycetes. Phylogenetic analyses conducted using the sequences of both the protein-coding gene RPB2 as well as nuclear ribosomal genes place this order within the subclass Acarosporomycetidae.
The Ostropomycetidae are a subclass of mostly lichen-forming fungi in the class Lecanoromycetes. The subclass was circumscribed in 2004 by Catherine Reeb, François M. Lutzoni, and Claude Roux. It contains ten orders and 36 families.
The Candelariales are an order of fungi in the monotypic class Candelariomycetes. It contains the families Candelariaceae and Pycnoraceae. The order was circumscribed by Jolanta Miadlikowska, François Lutzoni, and Helge Thorsten Lumbsch as part of a comprehensive phylogenetic classification of the kingdom Fungi published in 2007. The class Candelariomycetes was created in 2018 by Hermann Voglmayr and Walter Jaklitsch.
The Cephalothecaceae are a family of fungi in the class Sordariomycetes. The family was circumscribed in 1917 by Austrian naturalist Franz Xaver Rudolf von Höhnel. Species in this family are saprobic, often growing on rotten wood or on other fungi. They are known to be distributed in northern temperate regions. The family was placed in a monotypic class CephalothecalesHubka & Réblová in Index Fungorum 424: 1 (2019).
The Cystobasidiomycetes are a class of fungi in the subdivision Pucciniomycotina of the Basidiomycota. Most species are known from their yeast states; hyphal states, when present, produce auricularioid basidia and are frequently parasites of other fungi. The class contains five orders as well as two families and one genus (Queiroziella) of uncertain disposition. An additional order, Cyphobasidiales, has been proposed to accommodate several lichenicolous species, but its separation from the Erythrobasidiales has not been demonstrated.
Mycogelidium is a genus of fungi in the order Capnodiales. It contains the single species Mycogelidium sinense, described from China. The species was originally misinterpreted as a basidiomycete in the order Atractiellales and placed in its own family, the Mycogelidiaceae. Septate conidiophores were mistaken for auricularioid basidia. The species is now considered to belong within the anamorphic Capnodiales.
The Melanotaeniaceae are a family of smut fungi in the order Ustilaginomycetes, containing three genera.
Stilbum is a genus of fungi in the family Chionosphaeraceae. Though many species were formerly referred to the genus, it is effectively monotypic since the type species, Stilbum vulgare, currently has no close relative. Stilbum vulgare forms groups of minute, gelatinous, synnema-like basidiocarps up to 0.5 mm tall with a distinct stem and inflated, fertile head. Microscopically, it produces auricularioid basidia and basidiospores that germinate by budding off yeast cells. The species has been collected on rotting wood and old agaric fruit bodies and may be a parasite of other fungi. It was originally described from Europe, but is also known from Asia, North America, and Australia.
The Pachnocybe are a genus of fungi, within the monotypic family of PachnocybaceaeOberw. & R.Bauer, 1989, and within the monotypic order of Pachnocybales, within the class Pucciniomycetes. They are parasitic on plants or saprobic on rotten wood.
The Platygloeales are an order of fungi in the class Pucciniomycetes. Species in the order have auricularioid basidia and are typically plant parasites on mosses, ferns, and angiosperms, though Platygloea species appear to be saprotrophic.
The Platygloeaceae are a family of fungi in the class Pucciniomycetes. Species in the family have auricularioid basidia and are typically plant parasites on angiosperms, though Platygloea species appear to be saprotrophic.
The Eocronartiaceae are a family of fungi in the class Pucciniomycetes. Species in the family have auricularioid basidia and are typically plant parasites on ferns and mosses.
Chionosphaera is a genus of fungi in the family Chionosphaeraceae. It has four species.
