Leotiomycetes

Class of fungi

Leotiomycetes

Uncinula tulasnei
Scientific classification
Domain:  | Eukaryota
Kingdom:  | Fungi
Division:  | Ascomycota
(unranked):  | Sordariomyceta
Class:  | Leotiomycetes
Eriksson & Winka (1997)
Orders

Cyttariales
Erysiphales
Helotiales
Lahmiales
Lauriomycetales
Leotiales
Marthamycetales
Medeolariales
Micraspidales
Phacidiales
Rhytismatales
Thelebolales

Families incertae sedis

Thelocarpaceae
Vezdaeaceae

Genera incertae sedis

Amylocarpus
Catinella
Chaetomella
Cyclaneusma
Discohainesia
Eleutheromyces
Geniculospora
Hainesia
Hyphozyma
Leohumicola
Meliniomyces
Naemacyclus

The Leotiomycetes are a class of ascomycete fungi. Many of them cause serious plant diseases.

## Systematics

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The class Leotiomycetes contains numerous species with an anamorph placed within the fungi imperfecti (deuteromycota), that have only recently found their place in the phylogenetic system. The older classifications placed Leotiomycetes into the Discomycetes clade (inoperculate Discomycetes). Molecular studies have recently shed some new light to the still obscure systematics. Most scholars consider Leotiomycetes a sister taxon to Sordariomycetes in the phylogenetic tree of Pezizomycotina. Its division into subclasses have received strong support by the molecular data, but the overall monophyly of Leotiomycetes is dubious.

The order Lichinodiales and family Lichinodiaceae, newly circumscribed in 2019 to contain the genus cyanolichen genus Lichinodium, is the first known group of lichen-forming fungi in the Leotiomycetes.[1] Family Lichinodiaceae was then placed in 2020 in the Leotiales order.[2]

More orders were added in 2020, Lahmiales, Lauriomycetales, Marthamycetales, Medeolariales, Micraspidales and Phacidiales.[2]

## Characteristics

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* Most Leotiomycetes grow their asci in apothecia (seldom cleistothecia). The asci are cylindrical, without operculum.
* The spores are hyaline, of various shapes, and are released through a circular apical pore.

## References

[edit]

1. ^ Prieto, Maria; Schultz, Matthias; Olariaga, Ibai; Wedin, Mats (2018). "Lichinodium is a new lichenized lineage in the Leotiomycetes". Fungal Diversity. 94 (1): 23–39\. doi:10.1007/s13225-018-0417-5. hdl:10115/29252.
2. ^ a b Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456\. doi:10.5943/mycosphere/11/1/8. hdl:10481/61998.

## External links

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* Tree of Life: Leotiomycetes

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Opisthokont: True fungi classification, fungal orders

Domain
Archaea
Bacteria
Eukaryota
(major groups
Metamonada
Discoba
Diaphoretickes

Hacrobia

Cryptista
Rhizaria
Alveolata
Stramenopiles
Plants
Amorphea

Amoebozoa
Opisthokonta

Animals
Fungi
Mesomycetozoea)

Rozellomyceta|

| Rozellomycota|

* Rozellomycetes

|

Microsporidiomycota|

* Morellosporales
* Nucleophagales
* Paramicrosporidiales

Microsporidia|

* Chytridiopsidea
* Metchnikovellea
* Microsporea

Aphelidiomyceta|

| Aphelidiomycota|

* Aphelidea

|

Eumycota|

| Zoosporic fungi
(paraphyletic)|

| Neocallimastigomycota|

* Neocallimastigomycetes

|

Monoblepharomycota|

* Hyaloraphidiomycetes
* Monoblepharidomycetes

Chytridiomycota|

* ?Caulochytriomycetes
* ?Coenomycetes
* Sanchytriomycetes
* Chytridiomycetes

Blastocladiomycota|

* Physodermatomycetes
* Blastocladiomycetes

Zygomycota
(paraphyletic)|

| Olpidiomycota|

* Olpidiomycetes

|

Basidiobolomycota|

* Basidiobolomycetes

Entomophthoromycota|

* Neozygitomycetes
* Entomophthoromycetes

Kickxellomycota|

* Zoopagomycetes
* Dimargaritomycetes
* Ramicandelaberomycetes
* Kickxellomycetes

Mortierellomycota|

* Mortierellomycetes

Calcarisporiellomycota|

* Calcarisporiellomycetes

Mucoromycota|

* Endogonomycetes
* Mucoromycetes

Glomeromycota|

* †Palaeovesiarbusmycetes
* Paraglomeromycetes
* Archaeosporomycetes
* Glomeromycetes

Dikarya|

| Entorrhizomycota|

* Entorrhizomycetes

|

Ascomycota
(sac fungi)|

| Taphrinomycotina|

* Archaeorhizomycetes
* Neolectomycetes
* Novakomycetes
* Pneumocystidomycetes
* Schizosaccharomycetes
* Taphrinomycetes

|

Saccharomycotina|

* Alloascoideomycetes
* Dipodascomycetes
* Lipomycetes
* Pichiomycetes
* Saccharomycetes
* Sporopachydermiomycetes
* Trigonopsidomycetes

Pezizomycotina|

| Other|

* Orbiliomycetes
* Pezizomycetes

|

Dothideomyceta|

* Candelariomycetes
* Coniocybomycetes
* Lichinomycetes
* Arthoniomycetes
* Collemopsidiomycetes
* Dothideomycetes
* Eurotiomycetes
* Lecanoromycetes
* Xylobotryomycetes

Sordariomyceta|

* Xylonomycetes
* Geoglossomycetes
* Leotiomycetes
* Laboulbeniomycetes
* Sareomycetes
* Sordariomycetes

Basidiomycota
(with basidia)|

| Pucciniomycotina|

* Tritirachiomycetes
* Mixiomycetes
* Agaricostilbomycetes
* Cystobasidiomycetes
* Microbotryomycetes
* Classiculomycetes
* Cryptomycocolacomycetes
* Atractiellomycetes
* Spiculogloeomycetes
* Pucciniomycetes

|

Ustilaginomycotina|

* Peribolosporomycetes
* Monilielliomycetes
* Malasseziomycetes
* Ustilaginomycetes
* Exobasidiomycetes

Agaricomycotina|

* Dacrymycetales
* Agaricomycetes
* Wallemiomycetes
* Bartheletiomycetes
* Tremellomycetes

See also: fungi imperfecti (polyphyletic group).

Taxon identifiers

Leotiomycetes|

* Wikidata: Q133551
* Wikispecies: Leotiomycetes
* AusFungi: 60013109
* AusLichen: 30016304
* BioLib: 568118
* BOLD: 83934
* CoL: DQ
* EoL: 2861056
* EPPO: 1LETOC
* GBIF: 179
* iNaturalist: 55523
* IndexFungorum: 501487
* IRMNG: 1307
* ITIS: 610637
* MycoBank: 501487
* NCBI: 147548
* NZOR: 370cfab6-633a-4d68-a20b-1ee637523902
* Open Tree of Life: 346134
* PPE: leotiomycetes
* Plazi: 29658285-23F1-AAFC-0B54-5DD2F307D80F
* SpeciesFungorum: 501487
* Tropicos: 100364748
* WoRMS: 437251

Authority control databases: National |

* Czech Republic

|

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