''Mycaureola'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

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

in the family

Physalacriaceae The Physalacriaceae are a family of fungi in the order Agaricales. Species in the family have a widespread distribution, ranging from the Arctic, (''Rhizomarasmius''), to the tropics, e.g. ''Gloiocephala'', and from marine sites (''Mycaureola' ...

of mushrooms. Circumscribed in 1922 by French mycologists

René Maire René Charles Joseph Ernest Maire (29 May 1878, Lons-le-Saunier – 24 November 1949) was a French botanist and mycologist. His major work was the ''Flore de l'Afrique du Nord'' in 16 volumes published posthumously in 1953. He collected plants fr ...

and Émile Chemin, the genus is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

, containing the single species ''Mycaureola dilseae''. The fungus is a parasite of the

red alga Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority ...

l species ''

Dilsea carnosa ''Dilsea carnosa'', commonly known as the poor man's weather glass or the sea belt, is a species of red algae in the Dumontiaceae family of the order Gigartinales. Taxonomy The species was first described scientifically by Schmidel in 1794, ...

'', on which it causes circular necrotic lesions.

Taxonomy

''Mycaureola indica'' was described in a 1957 publication, but the taxon was later transferred to the genus ''

Polystigma ''Polystigma'' is a genus of fungi in the family Phyllachoraceae Phyllachoraceae is a family of sac fungi. Genera As accepted by 2020 Outline (with amount of species per genus); *'' Ascovaginospora'' (1) *'' Brobdingnagia'' (4) *'' Cam ...

'' as '' P. indicum''.

Molecular phylogenetics Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

placed ''Mycaureola'' in the Physalacriaceae, occupying a

subclade In genetics, a subclade is a subgroup of a haplogroup. Naming convention Although human mitochondrial DNA (mtDNA) and Y chromosome DNA (Y-DNA) haplogroups and subclades are named in a similar manner, their names belong to completely separate s ...

with species from the genera ''

Rhizomarasmius ''Rhizomarasmius'' is a genus of fungi in the family Physalacriaceae, containing about five species. General The genus was created in 2000 by R. H. Petersen to accommodate two species then classified in Marasmius (''M. pyrrhocephalus'' and ''M. ...

'', ''

Gloiocephala ''Gloiocephala'' is a genus of fungi in the family Physalacriaceae. The genus is widespread, though mainly known from tropical and sub-tropical areas, and contains about 30 species. The mushrooms of this group are very small and grow on stems an ...

'', ''

Xerula ''Xerula'' is a genus of gilled mushrooms in the family Physalacriaceae The Physalacriaceae are a family of fungi in the order Agaricales. Species in the family have a widespread distribution, ranging from the Arctic, (''Rhizomarasmius''), ...

'', and ''

Oudemansiella ''Oudemansiella'' is a genus of fungi in the family Physalacriaceae. The genus contains about 15 species that are widely distributed in tropical and temperate regions. Yang and colleagues revised the genus in a 2009 publication, describing severa ...

''.

References

{{Taxonbar, from=Q1610271 Monotypic Basidiomycota genera Physalacriaceae