Basidiomycetes are called the club fungi because they produce structures that look like clubs. There are about 25,000 species of basidiomycota including mushrooms, puffballs, and shelf fungi. There are several species of mushrooms that are a delicacy, but some species are deadly. Basidiomycetes can also be dangerous to plants. They produce something called rusts and smuts, which cause billions of dollars worth of damage to grain crops annually. Some species enter symbiotic relationships with plants. Basidiomycetes …showed first 75 words of 238 total…

…showed last 75 words of 238 total…the underground mycelium. The hyphae grow outward from the original spore in a circular pattern as the older hyphae in the center die. The body periodically sends up many mushrooms, which emerge in a ring-like pattern called a fairy ring. The diameter of the fairy ring can reveal the approximate age of the fungus. Some fairy rings are estimated to be 700 years old. One fairy ring in Michigan covers 38 acres and is over 1500 years old.