Thatch with Agrocybe pediades mycelia from the edge of a fairy ring (left) vs. thatch from the center of a fairy ring (right).

Samples of thatch taken from a fairy ring. Sample on left from the edge with mycelia. Sample on right was taken from the center.   Credit: M. Ali Harivandi
Thatch with Agrocybe pediades mycelia from the edge of a fairy ring (left) vs. thatch from the center of a fairy ring (right). Credit: M. Ali Harivandi