noun, plural hy·me·ni·a [hahy-mee-nee-uh] /haɪˈmi ni ə/. Mycology.
Examples from the Web for hymenium
Hymenium lining the cavity of tubes or pores which are sometimes broken up into teeth or concentric plates.
Hymenium covering the entire surface of radiating lamellae or gills.European Fungus Flora: Agaricaceae|George Massee
Hymenium within a closed fruit-body, which does not open until the spores are ripe; saprophytes.
Hymenium, the fruiting surface of the mushrooms and other fungi.Studies of American Fungi. Mushrooms, Edible, Poisonous, etc.|George Francis Atkinson
Hymenium dark cinereous, rugose when moist, the minute crowded irregular folds abundantly anastomosing; nearly even when dry.The Mushroom, Edible and Otherwise|M. E. Hard