The Trypetheliales are an

order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ...

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

in the class

Dothideomycetes 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. Traditionally, most of it ...

. Most of the species in the order form

lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...

s, although some are

lichenicolous fungi A lichenicolous fungus is a member of a specialised group of fungi that live exclusively on lichens as their host (biology), host organisms. These fungi, comprising over 2,000 known species across 280 genera, exhibit a wide range of ecological st ...

. Trypetheliales contains two families, Polycoccaceae and Trypetheliaceae. The order was circumscribed in 2008 by lichenologists Robert Lücking,

André Aptroot André Aptroot ( Heemskerk, 1961) is a Dutch mycologist and lichenologist. His primary research focus is on biodiversity, particularly tropical lichens, encompassing systematics, floristic surveys, and taxonomic reviews. A prolific research ...

, and Harrie Sipman.

Families and genera

Species Fungorum ''Index Fungorum'' is an international project to index all formal names (Binomial nomenclature, scientific names) in the fungus Kingdom (biology), kingdom. As of 2015, the project is based at the Royal Botanic Gardens, Kew, one of three partn ...

accepts 2 families, 25 genera, and 478 species in the Trypetheliales. * Polycoccaceae ::'' Clypeococcum'' – ca. 10 spp. ::'' Polycoccum'' – ca. 60 spp. * Trypetheliaceae ::'' Alloarthopyrenia'' – 1 sp. ::'' Aptrootia'' – 3 spp. ::'' Architrypethelium'' – 8 spp. ::'' Arthopyrenia'' – 55 spp. ::'' Astrothelium'' – ca. 275 spp. ::'' Bathelium'' – 16 spp. ::'' Bogoriella'' – 29 spp. ::'' Buscalionia'' – 1 sp. ::'' Constrictolumina'' – 9 spp. ::'' Dictyomeridium'' – 7 spp. ::'' Distothelia'' – 3 spp. ::''

Laurera ''Laurera'' is a genus of fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. The ...

'' – 2 spp. ::'' Marcelaria'' – 3 spp. ::'' Musaespora'' – 2 spp. ::'' Mycomicrothelia'' – 8 spp. ::'' Nigrovothelium'' – 3 spp. ::'' Novomicrothelia'' – 1 sp. ::'' Polymeridium'' – 51 spp. ::'' Polypyrenula'' – 1 sp. ::'' Pseudopyrenula'' – 21 spp. ::'' Trypethelium'' – 16 spp. ::'' Viridothelium'' – 11 spp.

References

* Ascomycota orders Lichen orders Taxa described in 2008 Taxa named by André Aptroot Taxa named by Robert Lücking Taxa named by Harrie Sipman {{Dothideomycetes-stub