FRANK FOX / SCIENCE PHOTO LIBRARY FRANK FOX / SCIENCE PHOTO LIBRARY
Mushroom gills. Light micrograph of a section through the gills of a mushroom. The margins of the gills constitute the hymenial layer, or hymenium, which produces the spore-bearing structures known as basidia. Many spores (basidiospores) are visible at the surface of this layer or lying free between the gills.
Model release not required. Property release not required.