A large group of Basidiomycetes with large basidiocarps producing (basidio)spores on a smooth (239.jpg), (248.jpg), lumpy (241.jpg) or pleated (246.jpg), (268.jpg) hymenium.
Other species produce (basidio)spores on the inside of tubes (28.jpg) or on spines (26.jpg), (251.jpg), (284B.jpg) or pseudogills (255A.jpg), (334.jpg), all located on the hymenium.