The basidiomycetes, or club fungi, are named for the basidium (buh SID ee um; plural: basidia). The basidium is a reproductive cell that resembles a club.
Life Cycle Basidiomycetes undergo what is probably the most elaborate life cycle of all the fungi, shown below.
Diversity More than 26,000 species of basidiomycetes have been described, roughly a third of all known fungal species. Examples include the stinkhorn and fly agaric mushrooms shown on the previous page, and the shelf fungus and puffball at right.
Shelf fungi (Polypore family) often grow on the sides of dead or dying trees.
A puffball releases its spores.