The Hymenogastraceae is a

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

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

in the order

Agaricales The fungal order Agaricales, also known as gilled mushrooms (for their distinctive gills) or euagarics, contains some of the most familiar types of mushrooms. The order has 33 extant families, 413 genera, and over 13,000 described species, alo ...

with both

agaric An agaric () is a type of fungus fruiting body characterized by the presence of a pileus (cap) that is clearly differentiated from the stipe (stalk), with lamellae (gills) on the underside of the pileus. In the UK, agarics are called "mushrooms ...

and false-

truffle A truffle is the fruiting body of a subterranean ascomycete fungus, predominantly one of the many species of the genus ''Tuber''. In addition to ''Tuber'', many other genera of fungi are classified as truffles including ''Geopora'', ''Peziz ...

shaped fruitbodies. Formerly, prior to

molecular A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ...

analyses, the family was restricted to the false-truffle genera. The mushroom genus ''

Psilocybe ''Psilocybe'' ( ) is a genus of gilled mushrooms, growing worldwide, in the family Hymenogastraceae. Most or nearly all species contain the psychedelic compounds psilocybin and psilocin. Taxonomy Taxonomic history A 2002 study of the mole ...

'' in the ''Hymenogastraceae'' is now restricted to the hallucinogenic species while nonhallucinogenic former species are largely in the genus ''

Deconica ''Deconica'' is a genus of mushroom-forming fungi in the family Strophariaceae. It was formerly considered synonymous with ''Psilocybe'' until molecular studies showed that genus to be polyphyletic, made of two major clades: one containing bluin ...

'' classified in the

Strophariaceae The Strophariaceae are a family of fungi in the order Agaricales. Under an older classification, the family covered 18 genera and 1316 species. The species of Strophariaceae have red-brown to dark brown spore prints, while the spores themselves a ...

. One of the two known species of '' Wakefieldia'' has been found recently to belong to this family but formal transfer cannot be made until the phylogeny of the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

of the genus is resolved. '' Psathyloma'', added to the family in 2016, was circumscribed to contain two agarics found in New Zealand.

Genera

*'' Alnicola'' (12 species) *''

Dendrogaster ''Dendrogaster'' is a genus of crustaceans belonging to the family Dendrogastridae Dendrogastridae is a family of crustaceans belonging to the order Dendrogastrida Dendrogastrida is an order of crustaceans belonging to the class Maxillopoda ...

'' (1 species) *'' Galera'' (4 species) *''

Galerina ''Galerina'' is a genus of small brown-spore saprobic fungi (colloquially often ''mushrooms''), with over 300 species found throughout the world from the far north to remote Macquarie Island in the Southern Ocean. The genus is most noted for some ...

'' (307 species) *'' Galerula'' (3 species) *''

Gymnopilus ''Gymnopilus'' is a genus of gilled mushrooms within the fungal family Strophariaceae containing about 200 rusty-orange spored mushroom species formerly divided among ''Pholiota'' and the defunct genus ''Flammula''. The fruit body is typically ...

'' (209 species) *''

Hebeloma ''Hebeloma'' is a genus of fungi in the family Hymenogastraceae. Found worldwide, it contains the poison pie or fairy cakes ''(Hebeloma crustuliniforme)'' and the ghoul fungus ''( H. aminophilum)'', from Western Australia, which grows on rotting ...

'' (355 species) *'' Hymenogaster'' (79 species) *'' Naematoloma'' (13 species) *'' Naucoria'' (177 species) *'' Psathyloma'' (3 species) *''

'' (310 species) *'' Rhizopogoniella'' (1 species) *''

Stropharia The genus ''Stropharia'' (sometimes known by the common name roundheads) is a group of medium to large agarics with a distinct membranous ring on the stipe. Well-known members of this genus include the edible ''Stropharia rugosoannulata'' and th ...

'' (59 species) *'' Velomycena'' (1 species)

References

Agaricales families Taxa described in 1831 {{Hymenogastraceae-stub