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Any of various fungi (seefungus) in the phylum Basidiomycota, found in soil or on decaying wood in grassy areas and woods. Puffballs are named for the fact that puffs of spores are released when the dry and powdery tissues of the mature spherical fruiting body (basidiocarp) are disturbed. Many are edible before maturity.
This entry comes from Encyclopædia Britannica Concise. For the full entry on puffball, visit Britannica.com.