The subdivision Agaricomycotina, also known as the
hymenomycetes, is one of three
taxa
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular n ...
of the
fungal
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 ...
division
Basidiomycota
Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basi ...
(fungi bearing spores on
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- ...
). The Agaricomycotina contain some 20,000 species, and about 98% of these are in the class
Agaricomycetes
The Agaricomycetes are a class of fungi in the division Basidiomycota. The taxon is roughly identical to that defined for the Homobasidiomycetes (alternatively called holobasidiomycetes) by Hibbett & Thorn, with the inclusion of Auriculariales ...
, which comprises most of the fungi known as
mushrooms
A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. ''Toadstool'' generally denotes one poisonous to humans.
The standard for the name "mushroom" is th ...
, including the
bracket fungi and
puffballs
Puffballs are a type of fungus featuring a ball-shaped fruit body that bursts on impact, releasing a cloud of dust-like spores when mature. Puffballs belong to the division Basidiomycota and encompass several genera, including '' Calvatia'', '' ...
. Species in the Agaricomycotina that are not Agaricomycetes include the
jelly fungi, certain "
yeast
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to consti ...
s", ear fungi, and others; these are gathered together as the
classes Tremellomycetes and
Dacrymycetes. Numerous species of Agaricomycotina are able to produce multicellular fruiting bodies, however, resupinate species form a hyphae structure. Yeast-forming species do not have the capacity to produce fruiting bodies.
References
* Hibbett DS, et al. 2007
A higher-level phylogenetic classification of the Fungi.''Mycological Research'' 111:509–547.
* Smith, G. M. 1955. ''Cryptogamic Botany, Vol. I, Algae and Fungi'', 2nd Ed. McGraw Hill Book Co., New York. 546 pp.
External links
*
*
Tree of Life AgaricomycotinaHymenomycetesat th
Tree of Life Web Project*https://www.tandfonline.com/doi/full/10.1080/15572536.2006.11832621
{{Agaricomycotina-stub