bracket fungus

noun

1. the leathery, corky, or woody, shelflike basidiocarp of certain wood-rotting fungi that form on tree trunks, lumber, etc.; conk.

noun

1. any saprotroph or parasitic fungus of the basidiomycetous family Polyporaceae, growing as a shelflike mass (bracket) from tree trunks and producing spores in vertical tubes in the bracket

1. See shelf fungus.