Sordariomycetidae is a subclass of

sac fungi Ascomycota is a phylum of the kingdom Fungi that, together with the Basidiomycota, forms the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. It is the largest phylum of Fungi, with over 64,000 species. The def ...

. Generally, species within the Sordariomycetidae subclass have light-dark coloured

perithecia An ascocarp, or ascoma (: ascomata), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascoc ...

(flask shaped structures opening by a pore). The asci are non-amyloid, or lack apical rings. True

paraphyses Paraphyses are erect sterile filament-like support structures occurring among the reproductive apparatuses of fungi, ferns, bryophytes and some thallophytes. The singular form of the word is paraphysis. In certain fungi, they are part of the f ...

are normally present in most species. Three new genera were created within the Sordariomycetidae subclass based on morphological and molecular data ( SSU and

LSU Louisiana State University and Agricultural and Mechanical College, commonly referred to as Louisiana State University (LSU), is an American Public university, public Land-grant university, land-grant research university in Baton Rouge, Louis ...

nrDNA The ribosomal DNA (rDNA) consists of a group of ribosomal RNA encoding genes and related regulatory elements, and is widespread in similar configuration in all domains of life. The ribosomal DNA encodes the non-coding ribosomal RNA, integral struc ...

) to hold five ascomycete fungi species collected from submerged woody debris in freshwater habitats from

Costa Rica Costa Rica, officially the Republic of Costa Rica, is a country in Central America. It borders Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as Maritime bo ...

. In 2015, after a study that found several genera of fungi taxa were

phylogenetically In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data ...

and morphologically distinct from genera in Sordariomycetidae. So the subclass

Diaporthomycetidae Diaporthomycetidae is a subclass of sac fungi under the class Sordariomycetes. The subclass was formed in 2015 for some fungi taxa that were already placed within Sordariomycetidae subclass but that were phylogenetically and morphologically di ...

was formed for those different that were already placed within Sordariomycetidae subclass. Wijayawardene et al. in 2020 added more families and genera to the order.

Incertae sedis or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...

''Familiae''; * Aquapteridosporaceae * Batistiaceae ''Genera'' (with amount of species); *'' Arecacicola'' (1) *'' Bullimyces'' (3) *'' Ceratolenta'' (1) *'' Chaetosphaerides'' (1) *'' Cryptophyllachora'' (2) *'' Hanliniomyces'' (1) *'' Hydromelitis'' (1) *'' Merugia'' (1) *'' Mycomedusiospora'' (1) *'' Myxocephala'' (1) *'' Neolinocarpon'' *'' Nigromammilla'' (1) *'' Phaeotrichosphaeria'' (4) *'' Phragmodiscus'' (2) *'' Pseudobotrytis'' (2)

References

Sordariomycetes Fungus subclasses Lichen subclasses Taxa described in 1997 {{Sordariomycetes-stub