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.
Families and genera , Species Fungorum includes 9 families, 97 genera, and 691 species in the Chaetothyriales. The following list shows the families, genera, and number of species in the Chaetothyriales, adapted from a recent (2020) taxonomic and nomenclatural review of the order. Chaetothyriaceae
Actinocymbe – 3 spp. Aithaloderma – 12 spp. Aphanophora – 1 sp. Arthrophiala – 1 sp. Camptophora – 2 spp. Ceramothyrium – 39 spp. Ceratocarpia – 3 spp. Chaetothyriomyces – 1 sp. Chaetothyrium – 67 spp. Cyphellophoriella – 1 sp. Euceramia – 3 spp. Longihyalospora – 2 spp. Microcallis – 9spp. Nullicamyces – 1 sp. Phaeosaccardinula – 41 spp. Stanhughesia – 4 sp. Treubiomyces – 7 spp. Vonarxia – 2 spp. Yatesula – 2 spp.
Coccodiniaceae Coccodinium – 4 spp. Dennisiella – 9 spp. Limacinula – 17 spp.
Cyphellophoraceae Anthopsis – 3 spp. Cyphellophora – 25 spp.
Epibryaceae Epibryon – 47 spp.
Herpotrichiellaceae Aculeata – 1 sp. Atrokylindriopsis – 1 sp. Brycekendrickomyces – 1 sp. Capronia – ca. 81 spp. Cladophialophora – 41 spp. Exophiala – 59 spp. Fonsecaea – 16 spp. Marinophialophora – 1 sp. Melanoctona – 1 sp. Metulocladosporiella – 6 spp. Minimelanolocus – 34 spp. Phialophora – 7 spp. Pleomelogramma – 2 spp. Rhinocladiella – 21 spp. Sorocybe – 3 spp. Thysanorea – 14 spp. Veronaea – 20 spp.
Lyrommataceae Lyromma – 7 spp.
Microtheliopsidaceae Microtheliopsis – 4 spp.
Paracladophialophoraceae Paracladophialophora – 2 spp.
Pyrenotrichaceae Pyrenothrix – 2 spp. Neophaeococcomyces – 4 spp.
Trichomeriaceae Arthrocladium – 4 spp. Bacillicladium – 1 sp. Bradymyces – 3 spp. Knufia – 14 spp. Lithohypha – 1 sp. Neostrelitziana – 1 sp. Strelitziana – 8 spp. Trichomerium – 36 spp.
Genera incertae sedis Several genera have been included in the Chaetothyriales although their familial placement is unknown. These include: Lichenodiplis – 13 spp. Lichenodiplisiella – 1 sp. Melnikomyces – 1 sp. Minutoexcipula – 7 spp. Muellerella – 14 spp. Pleostigma – 9 spp. Sarcinomyces – 5 spp. Uncispora – 3 spp.
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