Homobasidiomycetidae

Homobasidiomycetidae is a subclass of fungi within the class Agaricomycetes. This subclass is characterized by the presence of a basidium, a specialized cell where sexual reproduction occurs. The basidium produces basidiospores, which are the primary means of dispersal for these fungi.

Taxonomy

The subclass Homobasidiomycetidae was first described by the mycologist Robert L. Gilbertson in 1981. It includes several orders, such as Agaricales, Boletales, and Russulales, among others. These orders encompass a wide variety of mushroom-forming fungi, many of which are commonly encountered in nature.

Morphology

Homobasidiomycetidae fungi typically produce a fruiting body, or mushroom, which bears the basidia on its underside. The shape, size, and color of these mushrooms can vary widely, depending on the species. Some are small and inconspicuous, while others are large and brightly colored.

Ecology

Members of the Homobasidiomycetidae are found worldwide and occupy a variety of ecological niches. Many are saprophytic, meaning they obtain nutrients by decomposing dead organic matter. Others are mycorrhizal, forming beneficial relationships with plants. Some species are also known to be pathogenic, causing diseases in plants or animals.

Economic importance

Several species within the Homobasidiomycetidae are of economic importance. Some, like the shiitake mushroom (Lentinula edodes), are cultivated for food. Others, like the fly agaric (Amanita muscaria), are poisonous and can pose a threat to human health if ingested.

See also

• List of Agaricomycetes genera
• Mycology