''Haasiella'' is a fungal

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 nom ...

in the family

Hygrophoraceae The Hygrophoraceae are a family of fungi in the order Agaricales. Originally conceived as containing white-spored, thick-gilled agarics (gilled mushrooms), including '' Hygrophorus'' and ''Hygrocybe'' species (the waxcaps or waxy caps), DNA evi ...

. It is a

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 "unispe ...

genus that contains only the species ''Haasiella splendidissima''. ''Haasiella venustissima'', formerly considered to be a distinct species based on its one and two-spored

basidia A basidium () is a microscopic sporangium (a spore-producing structure) found on the hymenophore of fruiting bodies of basidiomycete fungi which are also called tertiary mycelium, developed from secondary mycelium. Tertiary mycelium is highly- ...

, was found by a DNA study to be synonymous with ''H. splendidissima''. ''H. splendidissima'' is only known from Europe and is

saprotrophic Saprotrophic nutrition or lysotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed (dead or waste) organic matter. It occurs in saprotrophs, and is most often associated with fungi ( ...

on wood. ''Haasiella'' was described as a new genus in 1966 by Czech mycologists František Kotlaba and

Zdeněk Pouzar Zdeněk Pouzar (born 13 April 1932) is a Czech mycologist. Along with František Kotlaba, he published several works about the taxonomy of polypore, corticioid, and gilled fungi. Pouzar is a noted expert on stromatic pyrenomycetes. Until 2012, h ...

. It is most closely related to the genus ''

Hygrophorus ''Hygrophorus'' is a genus of agarics (gilled mushrooms) in the family Hygrophoraceae. Called "woodwaxes" in the UK or "waxy caps" (together with ''Hygrocybe'' species) in North America, basidiocarps (fruit bodies) are typically fleshy, often wi ...

''. The genus name is in honour of Hans Haas, a German mycologist, who was a specialist on ''

Agaricus ''Agaricus'' is a genus of mushrooms containing both edible and poisonous species, with over 400 members worldwide and possibly again as many disputed or newly-discovered species. The genus includes the common ("button") mushroom ('' Agaricus bi ...

'' from Schnait near Stuttgart.

References

* Hygrophoraceae Agaricales genera {{Hygrophoraceae-stub

See also

References